The quantum spin liquid is an exotic quantum state of matter in magnets. This state is a spin analog of liquid helium that does not solidify down to the lowest temperature due to strong quantum fluctuations. In conventional fluids, the liquid and ...
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT 2014年10月
We discuss a number of illuminating results for tight-binding models supporting a band with variable Chern numbers and illustrate them explicitly for a simple class of two-banded models. First, for models with a fixed number of bands, we show that...
RuO" target="_blank">Spin-orbit Coupling and Multiple Phases in Spin-triplet Superconductor SrRuO
Youichi Yanase Shuhei Takamatsu Masafumi Udagawa
J. Phys. Soc. Jpn. 83, 061019 (2014) 2014年8月
We study the spin-orbit coupling in spin-triplet Cooper pairs and clarify<br />
multiple superconducting (SC) phases in SrRuO. Based on the analysis of<br />
the three-orbital Hubbard model with atomic LS coupling, we show some selection<b...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 83(7) 2014年7月
We study the reconstruction of chiral edge states in a magnetic Chern insulator in the Kondo lattice model on a triangular lattice at 1/4 filling. In this state, the spin scalar chirality associated with a four-sublattice noncoplanar magnetic orde...
We present the benchmark of the polynomial expansion Monte Carlo method to a Kondo lattice model with classical localized spins on a geometrically frustrated lattice. The method enables us to reduce the calculation amount by using the Chebyshev po...
We study the collective behavior of Majorana modes in the vortex state of chiral p-wave superconductors. Away from the isolated vortex limit, the zero-energy Majorana states communicate with each other on a vortex lattice, and form a coherent band...
人文科学研究科
理学部