Experimental overview on pairing mechanisms of BiCh2-based (Ch: S, Se) layered superconductors

K Hoshi, Y Mizuguchi - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
Abstract BiCh 2-based (Ch: S, Se) layered superconductors have attracted extensive
attentions because of variation of materials and physical characteristics, which include …

Bulk superconductivity in Pb-substituted -based compounds studied by hard x-ray spectroscopy

A Yamasaki, T Oguni, T Hayashida, K Miyazaki… - Physical Review B, 2024 - APS
In this study, we investigate the bulk electronic structure of Pb-substituted LaO 0.5 F 0.5 BiS
2 single crystals, using two types of hard x-ray spectroscopy. High-energy-resolution …

Photoelectron holographic evidence for the incorporation site of Se and suppressed atomic displacement of the conducting layer of La (O, F) BiSSe

YJ Li, ZX Sun, N Kataoka, T Setoguchi… - Japanese journal of …, 2023 - iopscience.iop.org
Abstract La (O, F) BiS 2-x Se x is a layered material that is considered to be a candidate
exotic superconductor as well as a promising thermoelectrical material. We performed soft X …

Crystal and electronic structures of -based compounds under pressure: Correlation with the change in the superconductivity from …

H Yamaoka, A Yamashita, Y Nakahira, M Ochi… - Physical Review B, 2022 - APS
Sr 1− x X x FBiS 2 (X: rare earth) is considered to show a pressure-induced structural
transition around 1 GPa where the superconductivity changes from unconventional in the …

Absence of Tc-Pinning Phenomenon under High Pressure in High-Entropy REO0.5F0.5BiS2 Layered Superconductor

Y Mizuguchi, K Yamane, R Matsumoto… - Journal of the Physical …, 2023 - journals.jps.jp
Recently, robustness of superconductivity (transition temperature, T c) under high pressures
has been observed in high-entropy alloy (HEA), bcc-type Ti–Zr–Hf–Nb–Ta, and HEA-type …

High-pressure effects on La (O, F) BiS2 single crystal using diamond anvil cell with dual-probe diamond electrodes

S Yamamoto, R Matsumoto, S Adachi… - Applied Physics …, 2021 - iopscience.iop.org
The high-pressure phase of La (O, F) BiS 2 exhibits the highest transition temperature
among all the BiS 2-based superconductors. Various studies, such as the investigation of …

First-principles study of moderate phonon-mediated pairing in high-pressure monoclinic phase of BiS2-based superconductors

J Cheng, YL Cheng, B Li, SL Liu - Chinese Physics B, 2023 - iopscience.iop.org
Isotope effect on superconductive transition temperature (T c) is an essential indicator to
examine whether the mechanism of superconductors is conventional. Unconventional …

High-pressure effects on superconducting properties and crystal structure of Bi-based layered superconductor La2O2Bi3Ag0. 6Sn0. 4S6

S Liu, R Matsumoto, R Jha, A Yamashita… - Journal of Physics …, 2021 - iopscience.iop.org
The effects of pressure on the superconducting properties of a Bi-based layered
superconductor La 2 O 2 Bi 3 Ag 0.6 Sn 0.4 S 6, which possesses a four-layer-type …

Electrical Transport Measurements on Layered La(O,F)BiS2 under Extremely High Pressure

R Matsumoto, S Yamamoto, Y Nemoto, Y Nishimiya… - Condensed …, 2022 - mdpi.com
Layered La (O, F) BiS2 exhibits drastic enhancements of the superconducting transition
temperature (T c) under high pressure among the BiS2-based superconducting family …