53 citations · 84 across the 5 of their papers we have counts for
5 papers
Variation of Pressure-Induced Valence Transition with Approximation Degree in Yb-Based Quasicrystalline Approximants
Keiichiro Imura, Yuki Yoneyama, Hideyuki Ando +6
We have synthesized new Tsai-type Yb-based intermediate-valence approximant crystals (ACs) with different degree of approximation to quasicrystal, Zn--Au--Yb 1/1 and 2/1 AC, and st…
Robustness of superconductivity to external pressure in high-entropy-alloy-type metal telluride AgInSnPbBiTe5
Md. Riad Kasem, Yuki Nakahira, Hitoshi Yamaoka +7
High-entropy-alloy (HEA) superconductors are a new class of disordered superconductors. In this study, we investigate the robustness of superconducting states in HEA-type metal tel…
Unusual coexistence of negative/positive charge-transfer in mixed-valence NaCaCrO
M. Taguchi, H. Yamaoka, Y. Yamamoto +6
We have investigated the electronic structure of NaCaCrO using x-ray absorption spectroscopy together with Anderson impurity model calculations with full multip…
Origin of Pressure-induced Superconducting Phase in KFeSe studied by Synchrotron X-ray Diffraction and Spectroscopy
Yoshiya Yamamoto, Hitoshi Yamaoka, Masashi Tanaka +12
Pressure dependence of the electronic and crystal structures of KFeSe, which has pressure-induced two superconducting domes of SC I and SC II, was investigated…
Unified understanding of the valence transition in the rare-earth monochalcogenides under pressure
Ignace Jarrige, Hitoshi Yamaoka, Jean-Pascal Rueff +10
Valence instability is a key ingredient of the unusual properties of f electron materials, yet a clear understanding is lacking as it involves a complex interplay between f electro…