222 citations · 288 across the 7 of their papers we have counts for
7 papers
Pressure-induced volumetric negative thermal expansion in CoZr2 superconductor
Yuto Watanabe, Hiroto Arima, Saori Kawaguchi-Imada +10
We investigate the thermal expansion and superconducting properties of a CuAl2-type (tetragonal) superconductor CoZr2 under high pressures. We perform high-pressure synchrotron X-r…
Pressure-induced superconductivity in iron-based spin-ladder compound BaFe2+δ(S1-Sex)3
H. Takahashi, R. Kikuchi, C. Kawashima +3
The iron-based superconductors had a significant impact on condensed matter physics. They have a common structural motif of a two-dimensional square iron lattice and exhibit fruitf…
Evolution of two bulk-superconducting phases in Sr0.5RE0.5FBiS2 (RE: La, Ce, Pr, Nd, Sm) by external hydrostatic pressure effect
Aichi Yamashita, Rajveer Jha, Yosuke Goto +7
Polycrystalline samples of Sr1-xRExFBiS2 (RE: La, Ce, Pr, Nd, and Sm) were synthesized via the solid-state reaction and characterized using synchrotron X-ray diffraction. Although…
Origin of magnetovolume effect in a cobaltite
Ping Miao, Zhijian Tan, Sanghyun Lee +21
The layered perovskite PrBaCo2O5.5+x demonstrates a strong negative thermal expansion (NTE) which holds potential for being fabricated into composites with zero thermal expansion.…
Pressure-Induced Metallization in Iron-Based Ladder Compounds BaCsFeSe
Takafumi Hawai, Chizuru Kawashima, Kenya Ohgushi +5
Electrical resistivity measurements have been performed on the iron-based ladder compounds BaCsFeSe ( = 0, 0.25, 0.65, and 1) under high pressure. A cubic an…
Pressure-induced Superconductivity in the Iron-based Ladder Material BaFe2S3
Hiroki Takahashi, Akira Sugimoto, Yusuke Nambu +13
All the iron-based superconductors identified to date share a square lattice composed of Fe atoms as a common feature, despite having different crystal structures. In copper-based…
Superconductivity at 52 K in hydrogen-substituted LaFeAsO1-xHx under high pressure
Hiroki Takahashi, Hideto Soeda, Muga Nukii +6
The 1111-type iron-based superconductor LnFeAsO1-xFx (Ln stands for lanthanide) is the first material with a Tc above 50 K, other than cuprate superconductors. Electron doping into…