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Berry-phase description of Topological Crystalline Insulators
A. Alexandradinata, B. Andrei Bernevig
We study a class of translational-invariant insulators with discrete rotational symmetry. These insulators have no spin-orbit coupling, and in some cases have no time-reversal symm…
Topological Dirac Band Insulators in Three Dimensions and Novel Transport Laws
B. Andrei Bernevig, Han-Dong Chen
This paper has been withdrawn.
An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
B. Andrei Bernevig, J. Orenstein, Shou-Cheng Zhang
Spin-orbit coupled systems generally break the spin rotation symmetry. However, for a model with equal Rashba and Dresselhauss coupling constant (the ReD model), and for the $[110]…
The Helical Liquid and the Edge of Quantum Spin Hall Systems
Congjun Wu, B. Andrei Bernevig, Shou-Cheng Zhang
The edge states of the recently proposed quantum spin Hall systems constitute a new symmetry class of one-dimensional liquids dubbed the ``helical liquid'', where the spin orientat…
Intrinsic Spin Hall Effect in the Two Dimensional Hole Gas
B. Andrei Bernevig, Shou-Cheng Zhang
We show that two types of spin-orbit coupling in the 2 dimensional hole gas (2DHG), with and without inversion symmetry breaking, contribute to the intrinsic spin Hall effect\cite{…
Piezo-Magneto-Electric Effects in p-Doped Semiconductors
B. Andrei Bernevig, Oskar Vafek
We predict the appearance of a uniform magnetization in strained three dimensional p-doped semiconductors with inversion symmetry breaking subject to an external electric field. We…
Spin Splitting and Spin Current in Strained Bulk Semiconductors
B. Andrei Bernevig, Shou-Cheng Zhang
We present a theory for two recent experiments in bulk strained semiconductors \cite{kato1, kato2} and show that a new, previously overlooked, strain spin-orbit coupling term may p…
On the Nature of Spin Currents
B. A. Bernevig
Full expressions for finite frequency spin and charge conductivity in Rashba and Luttinger type systems are given. Whereas in the Rashba Hamiltonian the spin conductivity has the s…