Pseudogap from ARPES experiment: three gaps in cuprates and topological superconductivity

AA Kordyuk - Low Temperature Physics, 2015 - pubs.aip.org
A term first coined by Mott back in 1968 a “pseudogap” is the depletion of the electronic
density of states at the Fermi level, and pseudogaps have been observed in many systems …

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 …

Direct evidence of hidden local spin polarization in a centrosymmetric superconductor LaO0.55 F0.45BiS2

SL Wu, K Sumida, K Miyamoto, K Taguchi… - Nature …, 2017 - nature.com
Conventional Rashba spin polarization is caused by the combination of strong spin–orbit
interaction and spatial inversion asymmetry. However, Rashba–Dresselhaus-type spin-split …

Intrinsic Phase Diagram of Superconductivity in the BiCh2-Based System Without In-Plane Disorder

K Nagasaka, A Nishida, R Jha, J Kajitani… - Journal of the Physical …, 2017 - journals.jps.jp
We have investigated the crystal structure and physical properties of LaO1− x F x BiSSe to
reveal the intrinsic superconductivity phase diagram of the BiCh2-based layered compound …

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 …

Polytypism in -type compounds based on different three-dimensional stacking sequences of two-dimensional layers

Q Liu, X Zhang, A Zunger - Physical Review B, 2016 - APS
LaOBi S 2-type materials have drawn much attention recently because of various interesting
physical properties, such as low-temperature superconductivity, hidden spin polarization …

Weak phonon-mediated pairing in superconductor from first principles

C Morice, R Akashi, T Koretsune, SS Saxena, R Arita - Physical Review B, 2017 - APS
Superconductivity in novel bismuth-sulfur superconductors has attracted large research
efforts, both experimental and theoretical, but a consensus on the nature of …

Photoelectron Holography Study of La(O,F)BiS2

YJ Li, ZX Sun, N Kataoka, T Setoguchi… - journal of the physical …, 2023 - journals.jps.jp
We performed photoelectron and Auger-electron holography to study the local structure of
La (O, F) BiS2. We found that the previously reported surface-dominant Bi 4f component …

Controlling of Localization by Elemental-substitution Effect in Layered BiCh2-based Compounds LaO1−xFxBiS2−ySey

K Hoshi, H Arima, N Kataoka, M Ochi… - journal of the physical …, 2023 - journals.jps.jp
We report transport properties for layered BiCh2-based (Ch= S, Se) superconductors LaO1−
x F x BiS2− y Se y (x= 0.2, 0.5, y= 0–1.05) and the observation of possible weak …

The magnetic and electronic properties of oxyselenides—influence of transition metal ions and lanthanides

C Stock, EE McCabe - Journal of Physics: Condensed Matter, 2016 - iopscience.iop.org
Magnetic oxyselenides have been a topic of research for several decades, firstly in the
context of photoconductivity and thermoelectricity owing to their intrinsic semiconducting …