Gang Su

Thermally Driven Pure Spin and Valley Currents via the Anomalous Nernst Effect in Monolayer Group-VI Dichalcogenides.

The spin and valley-dependent anomalous Nernst effects are analyzed for monolayer MoS_{2} and other group-VI dichalcogenides. We find that pure spin and valley currents can be generated perpendicular to the applied thermal gradient in the plane of these two-dimensional materials. This effect provides a versatile platform for applications of spin caloritronics. A spin current purity factor is introduced to quantify this effect. When time reversal symmetry is violated, e.g., two-dimensional materials on an insulating magnetic substrate, a dip-peak feature appears for the total Nernst coefficient. For the dip state it is found that carriers with only one spin and from one valley are driven by the temperature gradient.

Simplex valence-bond crystal in the spin-1 kagome Heisenberg antiferromagnet

We investigate the ground-state properties of a spin-1 kagome antiferromagnetic Heisenberg model using tensor-network (TN) methods. We obtain the energy per site

Manipulating effective spin orbit coupling based on proximity effect in magnetic bilayers

{e}_{0}=\ensuremath{-}1.410\phantom{\rule{0.16em}{0ex}}90(2)

Quantum phase transitions and string orders in the spin-1/2 Heisenberg-Ising alternating chain with Dzyaloshinskii-Moriya interaction

, with

The effect of the geometric phase on spin-polarized electron tunnelling

{D}^{*}=8

Combined study of Schwinger-boson mean-field theory and linearized tensor renormalization group on Heisenberg ferromagnetic mixed spin (S, σ) chains

multiplets retained (i.e., a bond dimension of

Anisotropic intrinsic lattice thermal conductivity of phosphorene from first principles

D=24)

Experimental observation of the 1/3 magnetization plateau in the diamond-chain compound Cu3(CO3)2(OH)2.

, and

Magnetic properties of J-J-J' quantum Heisenberg chains with spin S = 1/2, 1, 3/2 and 2 in a magnetic field

{e}_{0}=\ensuremath{-}1.4116(4)

Diamond polytypes under high pressure: A first-principles study

from large-