activity
19952023
most citedBose-Einstein condensation with internal degrees of freedom in alkali atom gases

1k citations · 8.5k across the 185 of their papers we have counts for

collaborators

185 papers

cond-mat.supr-con2023

Topological spin texture and d-vector rotation in spin-triplet superconductors: A case of UTe2

Yasumasa Tsutsumi, Kazushige Machida

A novel spin texture formed by Cooper pair spins is found theoretically with a phase string attached by half-quantized vortices at both ends in a unit cell and characterized by its…

cond-mat.supr-con2023★ 12 cited

Modulation vector of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 revealed by high-resolution magnetostriction measurements

Shunichiro Kittaka, Yohei Kono, Kaito Tsunashima +6

The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is an exotic superconducting phase formed by Cooper pairs with finite center-of-mass momentum . On theoretical grounds, the sup…

cond-mat.supr-con2023★ 7 cited

Violation of the orbital depairing limit in a non-unitary state --on the high field phase in the heavy Fermion superconductor UTe--

Kazushige Machida

A theoretical study is reported on the origin of extremely high upper critical field 70T observed in UTe with the transition temperature T=1.6K-2K, far exceedin…

cond-mat.supr-con2022

Anisotropic field response of specific heat for a ferromagnetic superconductor UCoGe in magnetic fields

Shota Nakamura, Shunichiro Kittaka, Kazushige Machida +4

Magnetic-field-angle-resolved specific heat and magnetization measurements were conducted on a ferromagnetic superconductor UCoGe with remarkable anisotropic upper critical field $…

cond-mat.supr-con2022★ 32 cited

Violation of the Pauli-Clogston limit in a heavy Fermion superconductor CeRhAs --Duality of itinerant and localized 4f electrons--

Kazushige Machida

We theoretically propose a mechanism to understand the violation of the Pauli-Clogston limit for the upper critical field H observed in the Ce bearing heavy Fermion mate…

cond-mat.supr-con2021★ 26 cited

Non-unitary triplet superconductivity tuned by field-controlled magnetization --URhGe, UCoGe and UTe--

Kazushige Machida

We report on theoretical studies on ferromagnetic superconductors, URhGe, and UCoGe and identifies the pairing state as a non-unitary spin-triplet one, analogous to superfluid …