4 papers
Inter-band coherence effects in disordered crystals: beyond the non-crossing approximation
Zhanning Wang, James H. Cullen, Roberto Raimondi +1
We develop a quantum kinetic theory for Bloch electrons driven by a uniform dc electric field, extending the nonequilibrium density-matrix formalism beyond the non-crossing approxi…
Orbital Hall effect in spin-3/2 hole-doped semiconductors and its implications for orbitronics
James H. Cullen, Zhanning Wang, Dimitrie Culcer
State-of-the-art magnetic devices rely on faster, more efficient memory elements. A major recent advance is the discovery of orbital torques, which use the orbital angular momentum…
Anisotropic spin-blockade leakage current in a Ge hole double quantum dot
Zhanning Wang, S. D. Liles, Joe Hillier +2
Group IV quantum dot hole spin systems, exhibiting strong spin-orbit coupling, provide platforms for various qubit architectures. The rapid advancement of solid-state technologies…
Dephasing of planar Ge hole spin qubits due to 1/ charge noise
Zhanning Wang, Sina Gholizadeh, Xuedong Hu +2
Hole spin qubits in Ge, investigated for all-electrical spin manipulation because of its large spin-orbit coupling, are exposed to charge noise leading to decoherence. Here we cons…