535 citations · 1.6k across the 33 of their papers we have counts for
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Valence and Na content dependences of superconductivity in NaxCoO2.yH2O
H. Sakurai, N. Tsujii, O. Suzuki +5
Various samples of sodium cobalt oxyhydrate with relatively large amounts of Na ions were synthesized by a modified soft-chemical process in which a NaOH aqueous solution was…
Coexistence of a nearly spin-singlet state and antiferromagnetic long-range order in quantum spin system CuCdBO
Masashi Hase, Masanori Kohno, Hideaki Kitazawa +5
A 1/2 magnetization plateau in magnetic fields above 23 T and antiferromagnetic (AF) long-range order (AFLRO) in low fields were found in CuCdBO. Experimental results a…
Field-induced magnetic ordering in the Haldane system PbNi2V2O8
N. Tsujii, O. Suzuki, H. Suzuki +2
The Haldane system PbNi2V2O8 was investigated by the temperature dependent magnetization M(T) measurements at fields higher than H_c, with H_c the critical fields necessary to clos…
Infrared spectroscopy under multi-extreme conditions: Direct observation of pseudo gap formation and collapse in CeSb
T. Nishi, S. Kimura, T. Takahashi +4
Infrared reflectivity measurements of CeSb under multi-extreme conditions (low temperatures, high pressures and high magnetic fields) were performed. A pseudo gap structure, which…