S. Sugiura, T. Terashima, S. Uji, S. Yasuzuka, and J. A. Schlueter
Phys. Rev. B 100 014515 Jul 2019 [Refereed]
Interlayer resistance is reported in a layered organic superconductor β"−(BEDT−TTF)2SF5CH2CF2SO3 with Tc ≈ 5 K. At 0.7 K in parallel magnetic fields, the interlayer resistance has nonzero values in a wide field region from 2 T to the upper critica...
S. Sugiura, T. Isono, T. Terashima, S. Yasuzuka, J. A. Schlueter, and S. Uji
npj Quantum Materials 4 Feb 2019 [Refereed]
Superconductivity is one of the most intriguing topics in solid state physics. Generally, the superconducting Cooper pairs are broken by the Zeeman effect, which gives the so-called Pauli paramagnetic limit H_Pauli. However, when the superconducti...
S. Uji, Y. Iida, S. Sugiura, T. Isono, K. Sugii, N. Kikugawa, T. Terashima, S. Yasuzuka, H. Akutsu, Y. Nakazawa, D. Graf, P. Day
Physical Review B 97 Apr 2018 [Refereed]
Resistance and magnetic torque measurements are reported in a layered organic superconductor, β"-(BEDT-TTF)4[(H3O)Ga(C2O4)3]C6H5NO2 with Tc=4.8 K, where BEDT-TTF stands for bis(ethylenedithio)tetrathiafulvalene. Because of the large anion between ...
Journal of the Physical Society of Japan 86 Aug 2017 [Refereed]
Resistance measurements have been performed to investigate the dimensionality and the in-plane anisotropy of the upper critical field (Hc2) for β-(BDA-TTP)2SbF6in fields H up to 15 T and at temperatures T from 1.5 to 7.5 K, where BDA-TTP stands fo...
We investigate the phonon density of states in nonstoichiometric palladium hydrides PdH x , in order to clarify the contribution of lattice vibrations to superconductivity. We employ the Burger-MacLachlan model, which considers a one-dimensional t...
