Material Development and Physical Properties of BiS2-Based Layered Compounds

Y Mizuguchi - Journal of the Physical Society of Japan, 2019 - journals.jps.jp
In 2012, we discovered superconductivity in Bi4O4S3 and LaO1− x F x BiS2, whose crystal
structures are composed of alternate stacks of a BiS2-type conduction layer and a blocking …

Electronic Structure and Superconducting Gap Structure in BiS2-based Layered Superconductors

K Suzuki, H Usui, K Kuroki, T Nomoto… - Journal of the Physical …, 2019 - journals.jps.jp
BiS2-based layered superconductors have attracted considerable interest owing to the
relatively large spin–orbit coupling of bismuth 6 p orbitals, the strong coupling nature by …

Pressure-Induced Enhancement of Superconductivity and Structural Transition in BiS2-Layered LaO1−xFxBiS2

T Tomita, M Ebata, H Soeda, H Takahashi… - Journal of the Physical …, 2014 - journals.jps.jp
BiS2-based LaO1− x F x BiS2 (x= 0.5) becomes superconductive at T c= 2.5 K. Electrical
resistivity and magnetization measurements are performed under pressure to determine the …

Superconductivity induced by electron doping in LaOBiS ( Ti, Zr, Hf, Th)

D Yazici, K Huang, BD White, I Jeon, VW Burnett… - Physical Review B …, 2013 - APS
We report a strategy to induce superconductivity in the BiS 2-based compound LaOBiS 2.
Instead of substituting F for O, we increase the charge-carrier density (electron dope) via …

In-plane chemical pressure essential for superconductivity in BiCh2-based (Ch: S, Se) layered structure

Y Mizuguchi, A Miura, J Kajitani, T Hiroi, O Miura… - Scientific reports, 2015 - nature.com
Abstract BiCh2-based compounds (Ch: S, Se) are a new series of layered superconductors
and the mechanisms for the emergence of superconductivity in these materials have not yet …

Review of superconductivity in BiS2-based layered materials

Y Mizuguchi - Journal of Physics and Chemistry of Solids, 2015 - Elsevier
In 2012, a new layered superconductor where BiS 2 layer is the superconducting layer was
discovered. So far, seven types of BiS 2-based superconductors and two related …

Pressure-induced enhancement of superconductivity and suppression of semiconducting behavior in OFBiS (,Ce) compounds

CT Wolowiec, D Yazici, BD White, K Huang… - Physical Review B …, 2013 - APS
Electrical resistivity measurements as a function of temperature between 1 and 300 K were
performed at various pressures up to 3 GPa on the superconducting layered compounds Ln …

Anomalous Eu Valence State and Superconductivity in Undoped Eu3Bi2S4F4

HF Zhai, P Zhang, SQ Wu, CY He… - Journal of the …, 2014 - ACS Publications
We have synthesized a novel europium bismuth sulfofluoride, Eu3Bi2S4F4, by solid-state
reactions in sealed evacuated quartz ampules. The compound crystallizes in a tetragonal …

Synthesis of RE123 high-Tc superconductors with a high-entropy-alloy-type RE site

Y Shukunami, A Yamashita, Y Goto… - … C: Superconductivity and …, 2020 - Elsevier
We have synthesized high-entropy-alloy-type (HEA-type) RE123 superconductors Y 0.28 Nd
0.16 Sm 0.18 Eu 0.18 Gd 0.20 Ba 2 Cu 3 O 7-δ and Y 0.18 La 0.24 Nd 0.14 Sm 0.14 Eu 0.15 …

Structural Analysis and Superconducting Properties of F-Substituted NdOBiS2 Single Crystals

M Nagao, S Demura, K Deguchi, A Miura… - Journal of the Physical …, 2013 - journals.jps.jp
F-substituted NdOBiS2 superconducting single crystals were grown using CsCl/KCl flux.
This is the first example of the single-crystal growth of a BiS2-based superconductor. The …