42 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Hitachi (Japan)JP4 papers
- Ibaraki UniversityJP4 papers
- Fukushima National College of TechnologyJP2 papers
- National Institute for Materials ScienceJP2 papers
- Spintronics Research Network of JapanJP2 papers
- The University of TokyoJP2 papers
- Tohoku UniversityJP2 papers
- University of Chinese Academy of SciencesCN2 papers
- Advanced Institute of Materials ScienceJP1 paper
- Asia Pacific Center for Theoretical PhysicsKR1 paper
- Chinese Academy of SciencesCN1 paper
- Czech Technical University in PragueCZ1 paper
13 papers
Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
He-Xu Zhang, Katsuya Hashino, Hiroyuki Ishida +1
Ultra-supercooling phase transitions can generate large overdensities in the Universe, potentially leading to the formation of primordial black holes (PBHs), which can also be a da…
Temperature profile of the Thomson-effect-induced heat release/absorption in junctionless single conductors
Takahiro Chiba, Ryo Iguchi, Takashi Komine +2
The Thomson effect induces heat release or absorption under the simultaneous application of a charge current and a temperature gradient to conductors. Here, we theoretically invest…
Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective
Rong-Gen Cai, Katsuya Hashino, Shao-Jiang Wang +1
The future space-borne gravitational wave (GW) detectors would provide a promising probe for the new physics beyond the standard model that admits the first-order phase transitions…
Voltage-control of damping constant in magnetic-insulator/topological-insulator bilayers
Takahiro Chiba, Alejandro O. Leon, Takashi Komine
The magnetic damping constant is a critical parameter for magnetization dynamics and the efficiency of memory devices and magnon transport. Therefore, its manipulation by electric…
Thermoelectric refrigerator based on asymmetric surfaces of a magnetic topological insulator
Takahiro Chiba, Takashi Komine
Thermoelectric (TE) refrigeration such as Peltier cooler enables a unique opportunity in electric energy to directly convert thermal energy. Here, we propose a TE module with both…
Voltage-driven Magnetization Switching via Dirac Magnetic Anisotropy and Spin--orbit Torque in Topological-insulator-based Magnetic Heterostructures
Takahiro Chiba, Takashi Komine
Electric-field control of magnetization dynamics is fundamentally and technologically important for future spintronic devices. Here, based on electric-field control of both magneti…
Detecting quadrupole: a hidden source of magnetic anisotropy for Manganese alloys
Jun Okabayashi, Yoshio Miura, Yohei Kota +3
Mn-based alloys exhibit unique properties in the spintronics materials possessing perpendicular magnetic anisotropy (PMA) beyond the Fe and Co-based alloys. It is desired to figure…
Giant gate-controlled proximity magnetoresistance in semiconductor-based ferromagnetic/nonmagnetic bilayers
Kosuke Takiguchi, Le Duc Anh, Takahiro Chiba +3
The evolution of information technology has been driven by the discovery of new forms of large magnetoresistance (MR), such as giant magnetoresistance (GMR) and tunnelling magnetor…
Quotients of smooth projective toric varieties by in positive characteristics
Tadakazu Sawada
In this paper we show that quotients of smooth projective toric varieties by in positive characteristics are toric varieties.
Scale Prevention By Ceramic Balls
Hideo Kawarada, Olivier Pironneau
In industrial facilities and household equipments scale formation leads to reduced efficiency and damages. Therefore various devices for anti-scale have been designed for a long ti…
Examples of austere orbits of the isotropy representations for semisimple pseudo-Riemannian symmetric spaces
Kurando Baba
Harvey-Lawson and Anciaux introduced the notion of austere submanifolds in pseudo-Riemannian geometry. We give an equivalent condition for an orbit of the isotropy representations…
Dynamics of slender monopoles and anti-monopoles in non-Abelian superconductor
Masato Arai, Filip Blaschke, Minoru Eto +1
Low energy dynamics of magnetic monopoles and anti-monopoles in the U(2) gauge theory is studied in the Higgs (non-Abelian superconducting) phase. The monopoles in this superconduc…
Relations between a typical scale and averages in the breaking of fractal distribution
Atushi Ishikawa, Tadao Suzuki
We study distributions which have both fractal and non-fractal scale regions by introducing a typical scale into a scale invariant system. As one of models in which distributions f…