54 citations · 194 across the 9 of their papers we have counts for
9 papers
Lattice dynamics with molecular Berry curvature: chiral optical phonons
Daniyar Saparov, Bangguo Xiong, Yafei Ren +1
Under the Born-Oppenheimer approximation, the electronic ground state evolves adiabatically and can accumulate geometrical phases characterized by the molecular Berry curvature. In…
Adiabatically Induced Orbital Magnetization
Cong Xiao, Yafei Ren, Bangguo Xiong
A semiclassical theory for the orbital magnetization due to adiabatic evolutions of Bloch electronic states is proposed. It renders a unified theory for the periodic-evolution pump…
Topological electric driving of magnetization dynamics in insulators
Cong Xiao, Bangguo Xiong, Qian Niu
Established forms of electromagnetic coupling are usually conservative (in insulators) or dissipative (in metals and semiconductors). Here we point out the possibility of nondissip…
Berry-phase effects in dipole density and Mott relation
Liang Dong, Cong Xiao, Bangguo Xiong +1
We provide a unified semiclassical theory for thermoelectric responses of any observable represented by an operator that is well-defined in periodic crystals.…
Boltzmann transport from density matrix theory: interband and intraband coherences
Cong Xiao, Jihang Zhu, Bangguo Xiong
To account for the anomalous/spin Hall conductivities and spin-orbit torque in the zeroth order of electron scattering time in strongly spin-orbit coupled systems, the Boltzmann tr…
Conserved spin current for the Mott relation
Cong Xiao, Jihang Zhu, Bangguo Xiong +1
The conserved bulk spin current [Shi et al., Phys. Rev. Lett. 96, 076604 (2006)], defined as the time derivative of the spin displacement operator, ensures automatically the Onsage…
Boltzmann approach to spin-orbit-induced transport in effective quantum theories
Cong Xiao, Bangguo Xiong, Fei Xue
In model studies of the spin/anomalous Hall effect, effective Hamiltonians often serve as the starting point. However, a complete effective quantum theory contains not only the eff…
Boltzmann scaling of spontaneous Hall current and nonequilibrium spin-polarization
Cong Xiao, Bangguo Xiong, Fei Xue
We extend the semiclassical Boltzmann formalism for the anomalous Hall effect (AHE) in nondegenerate multiband electron systems to the spin Hall effect (SHE) and unconventional Ede…
Geometric Dynamics of Magnetization: Electronic Contribution
Bangguo Xiong, Hua Chen, Xiao Li +1
To give a general description of the influences of electric fields or currents on magnetization dynamics, we developed a semiclassical theory for the magnetization implicitly coupl…