WADA Hirofumi

J-GLOBAL         Last updated: Dec 27, 2018 at 13:18
WADA Hirofumi
Kyushu University
Job title
Doctor of Engineering(Kyoto University)

Research Interests


Research Areas


Academic & Professional Experience

Research Associate, Faculty of Engineering, Kyoto University
- Associate Professor, Faculty of Engineering, Kyoto University


Graduate School, Division of Engineering, Kyoto University
Faculty of Engineering, Kyoto University


M. Shiga, H. Wada, Y. Nakamura
J. Magn. Magn. Mater   31-34(Pt 1) 119-120   Jan 1983
The thermal expansion of RMn2 (R=Y, Gd, Tb, Ho and Er) has been measured from 4.2 K up to room temperature. Distinct thermal expansion anomalies due to spontaneous volume magnetostriction, ωs, were found for YMn2, GdMn2 and TbMn2, which may be asc...
Akihiro Mitsuda, Eigo Kishaba, Takumi Fujimoto, Kohei Oyama, Hirofumi Wada, Masaichiro Mizumaki, Naomi Kawamura, Naoki Ishimatsu
Physica B: Condensed Matter   536 427-431   May 2018
© 2017 Elsevier B.V. We have measured the X-ray absorption spectra (XAS), electrical resistivity and magnetic susceptibility of EuRh2Si2, which undergoes a valence transition under high pressures. A sharp decrease in the Eu valence determined from...
Y. Muraoka, H. Wada, M. Shiga, Y. Nakamura
Physica B & C   119(1/2) 174-179   Apr 1983
The volume magnetostriction of cluster glass alloys, such as Fe-Al, Au-Fe and (Gd-Y)Co2, was measured and analyzed on the basis of a phenomenological theory of magnetovolume effects, in ehich the volume change is given by the contribution of the b...
Akihiro Mitsuda, Shigeki Manabe, Masafumi Umeda, Hirofumi Wada, Kazuyuki Matsubayashi, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Masaichiro Mizumaki, Naomi Kawamura, Kiyofumi Nitta, Naohisa Hirao, Yasuo Ohishi, Naoki Ishimatsu
Journal of Physics Condensed Matter   30    Feb 2018
© 2018 IOP Publishing Ltd. The layered hexagonal EuPtP is a rare substance that exhibits two successive valence transitions occurring simultaneously with valence ordering transitions and an antiferromagnetic order. Anticipating that the applicatio...
Yukiharu Tagawa, Junji Sakurai, Yukitomo Komura, Hirofumi Wada, Masayuki Shiga, Yoji Nakamura
J. Phys. Soc. Japan   54(2) 591-597   Jan 1985
Powder X-ray diffraction measurements on intermetallic compounds RMna (R: Y, Pr, Nd, Sm and Gd) have been made in a temperature range from 69 to 300 K. Below Tn, every sample shows a large volume expansion, being as large as 4.6% for YMn2. In addi...

Conference Activities & Talks

Recent progress of magnetocaloric effect and magnetic refrigerant materials of Mn- and Fe-based compounds [Invited]
WADA Hirofumi
Magnetism and Magnetic Materials Conference   Nov 2014   
Magnetocaloric Effect and Magnetoresistance due to Itinerant Electron Metamagnetic transition in Co(S1-xSex)2 [Invited]
WADA Hirofumi
International Symposium on Frontiers of Materials Science (ISFMS) 2013   Nov 2013   
Mn-Based compounds for magnetocaloric applications at room temperature [Invited]
WADA Hirofumi
5th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG V   Sep 2012   
Magnetocaloric Properties Desired for Magnetic Refrigeration System near Room Temperature [Invited]
WADA Hirofumi
MRS 2010 Fall Meeting   Dec 2010   

Association Memberships



Joint Research on Magnetic Refrigerator device at sub-room temperature

Research Grants & Projects

Development of magnetic refrigerant materials
Field-induced Nonmagnetic to Magnetic Transitions
Study of Magnetic Regenerative Materials
Search and Development of Magnetic Refrigerant Materials