JOPSS - Search Results

Journal Articles

Self-reconstruction of order parameter in spin-triplet superconductor UTe

Tokiwa, Yoshifumi; Opletal, P.; Sakai, Hironori; Kubo, Katsunori; Kambe, Shinsaku; Yamamoto, Etsuji; Kimata, Motoi; Awaji, Satoshi*; Sasaki, Takahiko*; Aoki, Dai*; et al.

Physical Review Letters, 135(13), p.136502_1 - 136502_6, 2025/09

https://doi.org/10.1103/z8yx-yzdh

Times Cited Count：1 Percentile：58.26(Physics, Multidisciplinary)

We investigate the effect of easy-axis metamagnetic crossover on superconductivity in UTe along the -axis through measurements of AC susceptibility, magnetization, and the magnetocaloric effect. In ultra-clean single crystals, we identify a field-induced phase transition within the superconducting state at 5.6 T, driven by metamagnetism. This transition leads to a high-field superconducting state, significantly increasing the upper critical field to 12 T. A sudden increase in entropy at the transition suggests a self-reconstruction of the order parameter, enabling multi-component superconducting states to adapt to external perturbations.

Journal Articles

Surface structure and surface state of a tight-binding model on a diamond lattice

Kubo, Katsunori

Journal of the Physical Society of Japan, 94(7), p.074701_1 - 074701_5, 2025/07

https://doi.org/10.7566/JPSJ.94.074701

Times Cited Count：0 Percentile：0.00(Physics, Multidisciplinary)

Journal Articles

Flat surface state with octupole moment in an orbital system on a simple cubic lattice

Kubo, Katsunori

Journal of the Physical Society of Japan, 94(5), p.054703_1 - 054703_7, 2025/05

https://doi.org/10.7566/JPSJ.94.054703

Times Cited Count：8 Percentile：96.11(Physics, Multidisciplinary)

Journal Articles

Octupolar edge state in an orbital system on a square lattice

Kubo, Katsunori

Physical Review B, 110(7), p.075110_1 - 075110_7, 2024/08

https://doi.org/10.1103/PhysRevB.110.075110

Times Cited Count：2 Percentile：29.63(Materials Science, Multidisciplinary)

Journal Articles

Weyl semimetallic state in the Rashba-Hubbard Model

Kubo, Katsunori

Journal of the Physical Society of Japan, 93(2), p.024708_1 - 024708_8, 2024/02

https://doi.org/10.7566/JPSJ.93.024708

Times Cited Count：8 Percentile：79.79(Physics, Multidisciplinary)

Journal Articles

Enhancement of an effective spin-orbit coupling in a correlated metal

Kubo, Katsunori

JPS Conference Proceedings (Internet), 38, p.011161_1 - 011161_6, 2023/05

https://doi.org/10.7566/JPSCP.38.011161

Journal Articles

Enhanced Spin-Orbit Coupling in a Correlated Metal

Kubo, Katsunori

Journal of the Physical Society of Japan, 91(12), p.124707_1 - 124707_7, 2022/12

https://doi.org/10.7566/JPSJ.91.124707

Times Cited Count：4 Percentile：40.80(Physics, Multidisciplinary)

Journal Articles

Sodium-cooled Fast Reactors

Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.

Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07

https://shop.elsevier.com/books/sodium-cooled-fast-reactors/morishita/978-0-12-824076-2

This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.

Journal Articles