YAMAMOTO Takashi

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Name
YAMAMOTO Takashi
E-mail
yamatakaehime-u.ac.jp
Affiliation
Ehime University
Research funding number
20511017

Published Papers

 
Takashi Yamamoto, Takashi Yamamoto, Takashi Fujimoto, Toshio Naito, Yasuhiro Nakazawa, Masafumi Tamura, Kyuya Yakushi, Yuka Ikemoto, Taro Moriwaki, Reizo Kato
Scientific Reports   7    Dec 2017
© 2017 The Author(s). Spin liquid (SL) systems have been the subject of much attention recently, as they have been theoretically predicted to not freeze, even at 0 K. Despite extensive searches being made for such a system, only a few candidates h...
Shuhei Fukuoka, Shuhei Fukuoka, Satoshi Yamashita, Yasuhiro Nakazawa, Takashi Yamamoto, Hideki Fujiwara
Journal of the Physical Society of Japan   86    Jan 2017
© 2017 The Physical Society of Japan. Angle-resolved heat capacity measurements of a π-d interacting system of κ-(BETS) 2 FeBr 4 [BETS = bis(ethylenedithio) tetraselenafulvalene] with in-plane magnetic fields are performed. We observed a thermal a...
Takashi Yamamoto, Takashi Yamamoto, Masafumi Tamura, Kyuya Yakushi, Reizo Kato
Journal of the Physical Society of Japan   85    Oct 2016
©2016 The Physical Society of Japan. We have carried out the complete analyses of the C=C stretching modes in the vibrational spectra in the triangular lattice of β′-Cs[Pd(dmit) 2 ] 2 in order to solve the puzzling phenomenon that the ground state...
Shuhei Fukuoka, Satoshi Yamashita, Yasuhiro Nakazawa, Takashi Yamamoto, Hideki Fujiwara, Takashi Shirahata, Kazuko Takahashi
Physical Review B   93(24)    Jun 2016   [Refereed]
© 2016 American Physical Society. The results are presented for systematic heat capacity measurements of π-d interacting systems of κ-(BETS)2FeBr4 and κ-(BETS)2FeCl4 [BETS = bis(ethylenedithio)tetraselenafulvalene] performed under in-plane magneti...
Tadahiko Ishikawa, Stuart A. Hayes, Stuart A. Hayes, Sercan Keskin, Sercan Keskin, Gastón Corthey, Gastón Corthey, Masaki Hada, Masaki Hada, Kostyantyn Pichugin, Alexander Marx, Alexander Marx, Julian Hirscht, Julian Hirscht, Kenta Shionuma, Ken Onda, Yoichi Okimoto, Shin Ya Koshihara, Shin Ya Koshihara, Takashi Yamamoto, Hengbo Cui, Mitsushiro Nomura, Yugo Oshima, Majed Abdel-Jawad, Reizo Kato, R. J. Dwayne Miller, R. J. Dwayne Miller, R. J. Dwayne Miller
Science   350 1501-1505   Dec 2015
Correlated electron systems can undergo ultrafast photoinduced phase transitions involving concerted transformations of electronic and lattice structure. Understanding these phenomena requires identifying the key structural modes that couple to th...
Kyuya Yakushi, Kaoru Yamamoto, Takashi Yamamoto, Yohei Saito, Atsushi Kawamoto
Journal of the Physical Society of Japan   84    Aug 2015
©2015 The Physical Society of Japan. We present experimental evidence for the charge fluctuation in the spin-liquid candidate κ-(BEDT-TTF) < inf > 2 < /inf > Cu < inf > 2 < /inf > (CN) < inf > 3 < /inf > . The temperature and pressure dependence o...
Activation energy for photoconduction in molecular crystals
N. Nagayama, T. Yamamoto and T. Naito
CheM   2 74-80   2015   [Refereed]
Takashi Yamamoto, Takashi Yamamoto, Takashi Yamamoto, Yasuhiro Nakazawa, Masafumi Tamura, Akiko Nakao, Akiko Nakao, Atsuko Fukaya, Reizo Kato, Kyuya Yakushi, Kyuya Yakushi
Journal of the Physical Society of Japan   83    May 2014
©2014 The Physical Society of Japan. We have investigated the property of the non-magnetic insulating state of a pressure-induced molecular superconductor with a quasi-triangular lattice consisting of tight dimer units applying vibrational and ref...
Guoyang Guan, Shuhei Fukuoka, Satoshi Yamashita, Takashi Yamamoto, Hiromi Taniguchi, Yasuhiro Nakazawa
Journal of Thermal Analysis and Calorimetry   113 1197-1201   Sep 2013
Thermodynamic investigation using the relaxation calorimetry technique and the microchip calorimetry technique is performed to clarify low-temperature behaviors of a radical cation salt consisting of a donor molecule of bispropylenedithiotetrathia...
Naoto Fukazawa, Takahiro Tanaka, Tadahiko Ishikawa, Yoichi Okimoto, Shin Ya Koshihara, Shin Ya Koshihara, Takashi Yamamoto, Masafumi Tamura, Reizo Kato, Ken Onda, Ken Onda
Journal of Physical Chemistry C   117(25) 13187-13196   Jun 2013   [Refereed]
To clarify the mechanism of the later process of photoinduced phase transition (PIPT) in organic charge-transfer complexes, we examined by time-resolved infrared vibrational spectroscopy two dimeric anion radical salts, Et 2 Me 2 Sb[Pd(dmit) 2 ] 2...
Shuhei Fukuoka, Satoshi Yamashita, Takashi Yamamoto, Yasuhiro Nakazawa, Akiko Kobayashi, Hayao Kobayashi
Physica Status Solidi (C) Current Topics in Solid State Physics   9 1174-1176   May 2012
Low temperature thermodynamic properties of κ -(BETS) 2 FeBr 4 are studied by using a tiny single crystal sample with 1 μg adhered on a micro-chip calorimeter TCG3880. A large thermal anomaly associated with the antiferromagnetic transition of ...
Takashi Yamamoto, Yasuhiro Nakazawa, Masafumi Tamura, Kyuya Yakushi, Kyuya Yakushi, Reizo Kato
Physica Status Solidi (B) Basic Research   249 971-974   May 2012
A group of [Pd(dmit) 2 ] 2 salts, whose two-dimensional structures take (pesudo-) triangular lattice, has a diversity in the ground states. In order to investigate the ground states, we have developed the methodology for analysing subtle changes i...
Muraoka Yuki, Yamashita Satoshi, Yamamoto Takashi, Nakazawa Yasuhiro
THERMOCHIMICA ACTA   532 88-91   Mar 2012   [Refereed]
High-Pressure AC Calorimetry System Using Pt Chip Thermometer
Mayu Danda, Yuki Muraoka, Takashi Yamamoto and Yasuhiro Nakazawa
Calorimetry and Thermal Analysis (Netsu Sokutei)   W39 29-32   2012   [Refereed]
Takashi Yamamoto, Yasuhiro Nakazawa, Masafumi Tamura, Akiko Nakao, Yuka Ikemoto, Taro Moriwaki, Atsuko Fukaya, Reizo Kato, Kyuya Yakushi, Kyuya Yakushi
Journal of the Physical Society of Japan   80(12)    Dec 2011   [Refereed]
Molecular conductors consisting of ''tight dimers'' with short intermolecular distances have been studied from the viewpoint of the 1/2-filled picture. Triclinic-EtMe 3 P[Pd(dmit) 2 ] 2 [dmit = 1,3-dithiole-2-thione-4,5-dithiolate] exhibits the in...
Y. Muraoka, S. Yamashita, T. Yamamoto, Y. Nakazawa
Journal of Physics: Conference Series   320    Nov 2011
Thermodynamic measurements of an organic spin liquid compound of k-(BEDT-TTF) 2 Cu 2 (CN) 3 where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene were performed by the ac calorimetry technique using a microchip device of TCG3880. This technique...
Kazuya Kubo, Kazuya Kubo, Takuya Shiga, Takuya Shiga, Takashi Yamamoto, Akiko Tajima, Taro Moriwaki, Yuka Ikemoto, Masahiro Yamashita, Elisa Sessini, Maria Laura Mercuri, Paola Deplano, Yasuhiro Nakazawa, Reizo Kato
Inorganic Chemistry   50 9337-9344   Oct 2011
The electrochemical oxidation of an acetone solution containing [Mn III (5-MeOsaltmen)(H 2 O)] 2 (PF 6 ) 2 (5-MeOsaltmen 2- = N,N′-(1,1,2,2- tetramethylethylene)bis(5-methoxysalicylideneiminate)) and (NBu 4 )[Ni(dmit) 2 ] (dmit 2- = 2-thioxo-1,3-d...
Takashi Yamamoto, Yakuhiro Nakazawa, Masafumi Tamura, Masafumi Tamura, Takeo Fukunaga, Takeo Fukunaga, Reizo Kato, Reizo Kato, Kyuya Yakushi
Journal of the Physical Society of Japan   80    Jul 2011
We have developed a methodology for analyzing the lattice, charge, and orbital in two-dimensional molecular conductors comprising dimers of [Pd(dimt) 2 ] ([Pd(dimt) 2 ]2) using C=C stretching vibrational modes. After confirming vibrational modes f...
Yamashita Satoshi, Yamamoto Takashi, Nakazawa Yasuhiro, Tamura Masafumi, Kato Reizo
NATURE COMMUNICATIONS   2    Apr 2011   [Refereed]
S. Yamashita, T. Yamamoto, Y. Nakazawa
Physica B: Condensed Matter   405    Jun 2010
Heat capacity measurements of organic triangular lattice compound κ-(BEDT-TTF) 2 Cu 2 (CN) 3 were performed to discuss the low energy excitations from the spin-liquid ground states. Existence of the T-linear electronic coefficient with finite ...
Shuhei Fukuoka, Satoshi Yamashita, Takashi Yamamoto, Yasuhiro Nakazawa, Hiroyuki Higashikawa, Katsuya Inoue
Physica B: Condensed Matter   405    Jun 2010
Thermodynamic nature of the magnetic transitions of a cyano-bridged W V -Cu II compound of [W(CN) 8 ] 4 [Cu(pn) H 2 O] 4 [Cu(pn)] 2 ·2.5H 2 O is studied by low-temperature heat capacity measurements. Distinct thermal anomalies were observ...
T. Yamamoto, Y. Nakazawa, R. Kato, K. Yakushi, H. Akutsu, A. S. Akustu, H. Yamamoto, A. Kawamoto, S. S. Turner, P. Dayg
Physica B: Condensed Matter   405    Jun 2010
In recent years, concern has been raised about the charge fluctuation of the superconducting transition in the loosely dimerized molecular conductors. Not only the observation of the charge fluctuation is of considerably important but also the und...
Kazuya Kubo, Akiko Nakao, Yasuyuki Ishii, Takashi Yamamoto, Masafumi Tamura, Reizo Kato, Kyuya Yakushi, Gen Etsu Matsubayashi
Inorganic Chemistry   47 5495-5502   Jun 2008
The electronic properties of cation radical salts derived from organometallic mixed-ligand complexes [(ppy)Au(S-S)] (ppy - = C-dehydro-2-phenylpyridine(-); S-S 2- = dithiolene ligand) with Au(III)-C σ-bond were investigated. A 2:1 salt complex [(p...
Yamamoto Takashi, Yamamoto Hiroshi M., Kato Reizo, Uruichi Mikio, Yakushi Kyuya, Akutsu Hiroki, Sato-Akutsu Akane, Kawamoto Atsushi, Turner Scott S., Day Peter
PHYSICAL REVIEW B   77(20)    May 2008   [Refereed]
Tanaka Masayuki, Yamamoto Kaoru, Uruichi Mikio, Yamamoto Takashi, Yakushi Kyuya, Kimura Shinya, Mori Hatsumi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   77(2)    Feb 2008   [Refereed]
Takashi Yamamoto, Reizo Kato, Hiroshi M. Yamamoto, Atsuko Fukaya, Kenji Yamasawa, Ichiro Takahashi, Hiroki Akutsu, Akane Akutsu-Sato, Peter Day
Review of Scientific Instruments   78    Sep 2007
We have developed a technique for the anisotropic extension of fragile molecular crystals. The pressure medium and the instrument, which extends the pressure medium, are both made from epoxy resin. Since the thermal contraction of our instrument i...
Yamamoto Takashi, Eda Junya, Nakao Akiko, Kato Reizo, Yakushi Kyuya
PHYSICAL REVIEW B   75(20)    May 2007   [Refereed]
Takashi Yamamoto, Takashi Yamamoto, Mikio Uruichi, Kyuya Yakushi, Atsushi Kawamoto
Physical Review B - Condensed Matter and Materials Physics   73    Mar 2006
We present the temperature-dependent infrared and Raman spectra of β″ - (ET)3 X2 (X=HS O4 and Cl O4; ET=bis -ethylenedithio- tetrathiafulvalene) compounds which undergo a metal-insulator transition. The infrared-active v27 mode discontinuously spl...
K. Yakushi, K. Suzuki, K. Yamamoto, T. Yamamoto, A. Kawamoto
Journal of Low Temperature Physics   142 671-674   Feb 2006
Employing Raman spectroscopy, we have studied the electronic structure of the charge-ordering system, Φ-(ET) 2 X, the dihedral angle (ψ) of which ranges from 100 to 121°. The most stable metal, Φ-(ET) 2 I 3 , (ψ = 100°) has a uniform charge distri...
Hiraoka Maki, Sakamoto Hirokazu, Mizoguchi Kenji, Kato Reizo, Kato Tatsuhisa, Nakamura Tosikazu, Furukawa Kou, Hiraki Koichi, Takahashi Toshihiro, Yamamoto Takashi, Tajima Hiroyuki
JOURNAL OF LOW TEMPERATURE PHYSICS   142(3-4) 617-620   Feb 2006   [Refereed]
Torizuka Kiyoshi, Tajima Hiroyuki, Yamamoto Takashi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   75(7)    Jul 2006   [Refereed]
T. Yamamoto, M. Uruichi, K. Yamamoto, K. Yakushi, A. Kawamoto
Synthetic Metals   155 628-630   Dec 2005
The IR and Raman spectra of β″-(ET) 3 X 2 [X = HSO 4 and ClO 4 ] salts were measured at various temperatures below 300 K. The ν 2 and ν 27 modes exhibit the splitting into two peaks below the metal-insulator transition temperature. This phenom...
Kiyoshi Torizuka, Kiyoshi Torizuka, Hiroyuki Tajima, Takashi Yamamoto
Physical Review B - Condensed Matter and Materials Physics   71    Dec 2005
We have measured the thermal conductivity of organic molecular crystals (DMe-DCNQI)2 Li1-x Cux (0≤x≤0.14) over a wide temperature range between 4 and 250 K. We observed the phonon contribution in the whole range measured. A phonon peak was observe...
A. F. Bangura, A. I. Coldea, J. Singleton, A. Ardavan, A. Akutsu-Sato, A. Akutsu-Sato, H. Akutsu, H. Akutsu, S. S. Turner, P. Day, T. Yamamoto, K. Yakushi
Physical Review B - Condensed Matter and Materials Physics   72    Oct 2005
We report magnetotransport measurements on the quasi-two-dimensional charge-transfer salts β″-(BEDT-TTF)4[(H3O)M(C2O4)3]Y, with Y=C6H5NO2 and C6H5CN using magnetic fields of up to 45 T and temperatures down to 0.5 K. A surprisingly robust supercon...
Takashi Yamamoto, Mikio Uruichi, Kaoru Yamamoto, Kyuya Yakushi, Atushi Kawamoto, Hiromi Taniguchi
Journal of Physical Chemistry B   109 15226-15235   Aug 2005
We reinvestigated the two C=C stretching modes of the five-membered rings of ET (ET = bis(ethylenedithio)-tetrathiafulvalene), namely, v 2 (in-phase mode) and v 27 (out-of-phase mode). The frequency of the v 27 mode of ET + was corrected to be...
Kiyoshi Torizuka, Kiyoshi Torizuka, Hiroyuki Tajima, Yukihiko Kawamura, Hiroshi Sawa, Takashi Yamamoto
Journal of Physics and Chemistry of Solids   66 1575-1578   Aug 2005
We have measured the thermal conductivity for organic molecular crystals (DMe-DCNQI) 2 Li 1-x Cu x (x=0, 0.08, and 0.14) over a wide range of temperatures (4∼250 K). A peak can be seen near ∼20 K. The peak height decreases with decreasing x, a...
Kaoru Yamamoto, Takashi Yamamoto, Kyuya Yakushi, Cesare Pecile, Moreno Meneghetti
Physical Review B - Condensed Matter and Materials Physics   71    Jan 2005
The charge distribution and molecular arrangement of a quarter-filled quasi-one-dimensional system (DI-DCNQI) 2 Ag (DI-DCNQI=2,5-diiodo- dicyanoquinediimine) has been studied by IR and Raman spectroscopy. The charge localization of this material ...
T. Yamamoto, M. Uruichi, K. Yakushi, Jun Lchi Yamaura, H. Tajima, A. Kawamoto
Journal De Physique. IV : JP   114 397-399   Dec 2004
We studied C=C stretching bands of β"-(ET) 3 (ReO 4 ) 2 and β"-(ET) 4 M(CN) 4 H 2 O (M=Pt, Pd and Ni) at the low temperatures below 300 K in order to verify the inhomogeneous charge distributions. A drastic spectral change was observed for β"-(...
Takashi Yamamoto, Mikio Uruichi, Kyuya Yakushi, Jun Ich Yamaura, Hiroyuki Tajima
Physical Review B - Condensed Matter and Materials Physics   70    Sep 2004
We present the infrared and Raman spectra of β″-(BEDT-TTF) 3 (ReO 4 ) 2 (BEDT-TTF=bis-ethylenedithio- tetrathiafulvalene) measured at various temperatures. We investigated the three C=C stretching modes, ν 2 ν 27 , and ν 3 . The infrared and Ram...
Takashi Yamamoto, Kyuya Yakushi, Yasuhiro Shimizu, Gunzi Saito
Journal of the Physical Society of Japan   73 2326-2332   Aug 2004
The polarized Raman and infrared spectra of θ-(ET) 2 Cu 2 CN[N(CN) 2 ] 2 [ET = bis(ethylenedithio) tetrathiafulvalene] were measured at various temperatures below 300 K. We investigated the three C=C stretching modes, ν 2 , ν 3 and ν 27 . The s...
T. Hatui, T. Yamamoto, H. Tajima, and N. Kosugi
Chem. Phys.   298 189-193   2004   [Refereed]
T. Yamamoto, H. Tajima, R. Kato, M. Uruichi, K. Yakushi
Synthetic Metals   133-134 291-292   Mar 2003
We measured thermoelectric power and Raman spectra for (Me 2 DCNQI) 2 Cu x Li 1-x . The ν 8 (quinoid C = N stretch) Raman line shifts downwards with an increase of copper contents (x), and exhibits a split for x ≤ 0.24. Temperature dependence of t...
Tadashi Kawamoto, Minoru Ashizawa, Takehiko Mori, Takashi Yamamoto, Jun Ichi Yamaura, Hiroyuki Tajima
Journal of the Physical Society of Japan   71 3059-3064   Dec 2002
Low-temperature crystal structure and optical properties of the quasi-one-dimensional organic conductor (ChTM-TTP) 2 GaCl 4 (ChTM-TTP: 2-[4,5-(1,2-cyclohexylenedithio)-1,3-dithiol-2-ylidene]-5-[4,5-bis(methylthio) -1,3-dithiol-2-ylidene] -1,3,4,6...
Harukazu Yoshino, Takako Konoike, Keizo Murata, George C. Papavassiliou, Takahiko Sasaki, Takashi Yamamoto, Hiroyuki Tajima
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals   376 171-176   Dec 2002
The electric resistivity was measured for τ- (EDO-S,S-DMEDT-TTF) 2 (AuBr 2 ) 1+y (1), τ-(EDO-S,S-DMEDT-TTF) 2 - (I 3 ) 1+y (2) and τ-(P-S,S-DMEDT-TTF) 2 (AuBr 2 ) 1+y (3), (y∼0.75) under hydrostatic pressure and magnetic field. Pressure incr...
Takashi Yamamoto, Takashi Yamamoto, Hiroyuki Tajima, Reizo Kato, Mikio Uruichi, Kyuya Yakushi
Journal of the Physical Society of Japan   71 1956-1964   Aug 2002
Raman spectra of (Me 2 -DCNQI) 2 Cu x Li 1-x (0 ≤ x ≤ 1) have been measured at room temperature, 200 K, 100 K and 5 K. The observed Raman bands are assigned on the basis of the vibrational analysis done by Lunardi and Pecile. The Raman band assign...
T. Yatamoto, N. Hanasaki, J. Yamaura, S. Aonuma, H. Tajima, K. Yakushi, M. Uruichi, R. Kato
Synthetic Metals   120 873-874   Mar 2001
We report two studies for (DMe-DCNQI) 2 Li 1-x Cu x recently carried out by our group. In the first study, we report the measurements of electrical resistivity, magnetic susceptibility, reflectance spectra for (DMe-DCNQI) 2 Li 1-x Cu x . The poin...
Toshio Naito, Tamotsu Inabe, Keiji Takeda, Keiji Takeda, Kunio Awaga, Tomoyuki Akutagawa, Tatsuo Hasegawa, Takayoshi Nakamura, Toru Kakiuchi, Hiroshi Sawa, Takashi Yamamoto, Hiroyuki Tajima
Journal of Materials Chemistry   11 2221-2227   Jan 2001
An electrolysis of bis(ethylenedithio)tetrathiafulvalene (ET) and a Mn-cluster in a 1,1,2-trichloroethane solution containing 10% (vol/vol) of ethanol yields black lustrous single crystals, β″-(ET) 3 (MnCl 4 )(1,1,2-C 2 H 3 Cl 3 ) based on the X-r...
T. Konoike, A. Oda, K. Iwashita, T. Yamamoto, H. Tajima, H. Yoshino, K. Ueda, T. Sugimoto, K. Hiraki, T. Takahashi, T. Sasaki, Y. Nishio, K. Kajita, G. C. Papavassiliou, G. A. Mousdis and K. Murata
120 801-802   2001   [Refereed]
Tadashi Kawamoto, Takehiko Mori, Takashi Yamamoto, Hiroyuki Tajima, Yohji Misaki, Kazuyoshi Tanaka
Journal of the Physical Society of Japan   69 4066-4070   Dec 2000
(TTM-TTP)AuI 2 (TTM-TTP: 2,5-bis[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-1,3,4,6-tetrathiapentalene) has a dimerized structure along the donor stacking direction, and shows semiconducting behavior below room temperature. ESR, static magnetic s...
T. Yamamoto, H. Tajima, R. Kato
Solid State Communications   114 281-284   Apr 2000
We measured the static spin susceptibility of the quasi-one-dimensional molecular conductors, (DMe-DCNQI) 2 Li 1-x Cu x (0≤x≤1). We separated the susceptibility component due to itinerant electrons from that due to local magnetic moments by assumi...
T. Kawamoto, M. Ashizawa, M. Aragaki, T. Mori, T. Yamamoto, H. Tajima, H. Kitagawa, T. Mitani, Y. Misaki, K. Tanaka
Physical Review B - Condensed Matter and Materials Physics   60 4635-4645   Dec 1999
The compounds (TTM-TTP)(I 3 ) 5/3 and (TSM-TTP)(I 3 ) 5/3 which have polyiodide chains along the donor stacking direction and show characteristic "copper" luster, exhibit metallic behavior above T MI ≈20 K. High-pressure resistivity, the Raman spe...
H. Tajima, T. Yamamoto, J. Yamaura, S. Aonuma, R. Kato
Synthetic Metals   103 2193-2194   Jun 1999
We systematically study transport and optical properties of charge-transfer salts, (DMe-DCNQI) 2 Li 1-x Cu x (0≤x≤1). In the optical studies, we found the two absorption bands, one attributable to collective excitations associated with 4k F CDW (A...
Takashi Yamamoto, Hiroyuki Tajima, Jun Ichi Yamaura, Shuji Aonuma, Reizo Kato
Journal of the Physical Society of Japan   68 1384-1391   Apr 1999
We systematically study transport and optical properties of charge-transfer salts, (Me 2 -DCNQI) 2 Li 1 - x Cu x (0 ≤ x ≤ 1). The temperature dependence of electrical resistivity exhibits semiconducting behavior at x = 0, a metal-semiconductor tr...

Misc

 
“New clues on organic superconductors”
YAMAMOTO Takashi
RIKEN Research highlights   3 5   2008   [Invited]

Books etc

 
Advances and Applications in Energy Storage and Conversion: Chapter 2: Diversity in the Electronic Phase due to Interchange of MO Levels in [M(dmit)2] Anion Salts (M = Pd and Pt) in Functional Materials (p83-p155)
Takashi Yamamoto
Pan Stanford Publishing Pte. Ltd.   Oct 2018   ISBN:978-0-429-46813-1

Conference Activities & Talks

 
Hidden Ordered States Characteristic of Interchange of MO Levels in Molecule-Based Conductors [Invited]
YAMAMOTO Takashi
The Toyota Riken International Workshop: Organic Semiconductors, Conductors, and Electronics   25 Oct 2018   
Interplay between spin, charge, lattice and orbital in molecule-based frustrated spin system
Takashi Yamamoto, Toshio Naito, Yasuhiro Nakazawa, Masafumi Tamura, Kyuya Yakushi and Reizo Kato
43rd International Conference on Coordination Chemistry   2 Aug 2018   
「分子固体物性における分子間距離の役割」
YAMAMOTO Takashi
Workshop on Materials Science under Ultra-High Pressure MATSUYAMA 2017   3 Mar 2017   
Uniaxial Strain Effects on β"-type BEDT-TTF salts
OKII, Yuichi; YAMAMOTO, Takashi; NAITO, Toshio; KONISHI, Kensuke
25 Mar 2016   
Charge Fluctuation in the Antiferromagnetic
YAMAMOTO Takashi
International Conference on Science and Technology of Synthetic Metals (ICSM 2014).   Jul 2014   
“Experimental study on the mechanism of the charge frustration in the molecular superconductors”
T. Yamamoto, Y. Nakazawa, M. Tamura, K. Yakushi and R. Kato
10th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets (ISCOM 2013)   15 Jul 2013   
CHARGE FLUCTUATION IN VARIOUS ORGANIC SUPERCONDUCTORS
YAMAMOTO Takashi
The International Conference on Science and Technology of Synthetic Metals 2012 (ICSM 2012)   Jul 2012   
Chemical Approach to Inducing Charge Fluctuation [Invited]
YAMAMOTO Takashi
MDF International Workshop: Open-shell Organic Molecules. –Synthesis and Electronic Structure Freedom–   8 Oct 2011   
“Rich variety in the ground states of [Pd(dmit)2]2 salts, and the methodology for analysing intra-dimer interactions, inter-dimer interactions and MO levels”
T. Yamamoto, Y. Nakazawa, M. Tamura, K. Yakushi and R. Kato
9th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets (ISCOM 2011)   28 Sep 2011   
“Fluctuations around the Quantum Critical Point of Tightly Dimerized Molecular Conductors”
T. Yamamoto, Y. Muraoka, R. Yoshimoto, S. Yamashita, Y. Nakazawa, Y. Ikemoto, T. Moriwaki, R. Kato, and K. Yakushi
International Conference on Science and Technology of Synthetic Metals. (ICSM 2010)   7 Jul 2010   
Charge Fluctuation of the Superconducting Molecular Crystals
YAMAMOTO Takashi
The 8th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets (ISCOM2009)   13 Sep 2009   
Technique for anisotropic extension of molecular crystals: Application to organic superconductors
YAMAMOTO Takashi
SEVENTH INTERNATIONAL SYMPOSIUM ON CRYSTALLINE ORGANIC METALS,. SUPERCONDUCTORS AND FERROMAGNETS (ISCOM2007)   Sep 2007   
Charge Ordering State of ET, BETS and [Pd(dmit)2] Salts by Temperature-Dependent Vibrational Spectroscopy
YAMAMOTO Takashi
International Conference on Science and Technology of Synthetic Metals, (ICSM 2006)   Jul 2006   

Social Contribution

 
Workshop on Materials Science under Ultra-High Pressure MATSUYAMA 2017
[Planner, Organizing Member]  Workshop on Materials Science under Ultra-High Pressure MATSUYAMA 2017  Mar 2017 - Mar 2017