48 citations · 80 across the 2 of their papers we have counts for
6 papers
NaV2O4: a Quasi-1D Metallic Antiferromagnet with Half-Metallic Chains
K. Yamaura, M. Arai, A. Sato +6
NaV2O4 crystals were grown under high pressure using a NaCl flux, and the crystals were characterized with X-ray diffraction, electrical resistivity, heat capacity, and magnetizati…
Uncommonly High Upper Critical Field in the Superconducting KOsO Pyrochlore
T. Shibauchi, L. Krusin-Elbaum, Y. Kasahara +10
The entire temperature dependence of the upper critical field in the -pyrochlore KOsO is obtained from high-field resistivity and magnetic measurements. Bot…
Theory of Interacting Bloch Electrons in a Magnetic Field
Takafumi Kita, Masao Arai
We study interacting electrons in a periodic potential and a uniform magnetic field taking the spin-orbit interaction into account. We first establish a perturbation expa…
Magnetic-Field Dependences of Thermodynamic Quantities in the Vortex State of Type-II Superconductors
Koichi Watanabe, Takafumi Kita, Masao Arai
We develop an alternative method to solve the Eilenberger equations numerically for the vortex-lattice states of type-II superconductors. Using it, we clarify the magnetic-field an…
Ab initio calculations of H for Nb, NbSe2, and MgB2
Masao Arai, Takafumi Kita
We report on quantitative calculations of the upper critical field for clean type-II superconductors Nb, NbSe, and MgB using Fermi surfaces from {\em ab initio…
{\em Ab Initio} Calculations of in Type-II Superconductors: Basic Formalism and Model Calculations
Takafumi Kita, Masao Arai
Detailed Fermi-surface structures are essential to describe the upper critical field in type-II superconductors, as first noticed by Hohenberg and Werthamer [Phys. Rev. {\…