Thermal transport measurements have been made on the Fe-based superconductor Lu2Fe3Si5 (T-c similar to 6 K) down to a very low temperature T-c/120. The field and temperature dependences of the thermal conductivity confirm the multigap superconduct...
Rieko Ishii Dixie Gautreaux Keisuke Onuma Yo Machida Yoshiteru Maeno Satoru Nakatsuji Julia Y. Chan
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 132(20) 7055-7061 2010年5月 [査読有り]
Single crystals of the quantum low-dimensional antiferromagnet Rb4Cu(MoO4)(3) and the nonmagnetic analogue Ru4Zn(MoO4)(3) have been synthesized by a flux-growth method. Detailed structural studies indicate that the Cu(II)-O network separated by a ...
Yo Machida Satoru Nakatsuji Shigeki Onoda Takashi Tayama Toshiro Sakakibara
NATURE 463(7278) 210-213 2010年1月
Spin liquids are magnetically frustrated systems, in which spins are prevented from ordering or freezing, owing to quantum or thermal fluctuations among degenerate states induced by the frustration. Chiral spin liquids are a hypothetical class of ...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 78(7) 1-73705 2009年7月
Thermal transport measurements have been performed on single-crystalline Co-doped BaFe2As2 down to 0.1 K and under magnetic fields up to 7 T. Significant peak anomalies are observed in both thermal conductivity and thermal Hall conductivity below ...
K. Kuga Y. Karaki Y. Matsumoto Y. Machida S. Nakatsuji
PHYSICAL REVIEW LETTERS 101(13) 1-137004 2008年9月
beta-YbAlB4 is the first Yb-based heavy fermion superconductor with T-c = 80 mK. Our study using high-purity single crystals reveals that strongly type-II heavy fermion superconductivity emerges from the non-Fermi-liquid state with enhanced ferrom...
人文科学研究科
理学部