Understanding Lorentz violation with Rashba interaction

Abstract

Rashba spin orbit interaction is a well studied effect in condensed matter physics and has important applications in spintronics. The Standard Model Extension (SME) includes a CPT-even term with the coefficient H_{μν} which leads to the Rashba interaction term. From the limit available on the coefficient H_{μν} in the SME we derive a limit on the Rashba coupling constant for Lorentz violation. In condensed matter physics the Rashba term is understood as resulting from an asymmetry in the confining potential at the interface of two different types of semiconductors. Based on this interpretation we suggest that a possible way of inducing the H_{μν} term in the SME is with an asymmetry in the potential that confines us to 3 spatial dimensions.

13 pages, minor corrections. Version to appear in IJMPA

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• Generation of geometrical phases and persistent spin currents in 1-dimensional rings by Lorentz-violating terms
• Relativistic geometric quantum phases from the Lorentz symmetry violation effects in the CPT-even gauge sector of Standard Model Extension
• Lorentz symmetry breaking effects on relativistic EPR correlations
• Lorentz-violating extension of the spin-one Duffin-Kemmer-Petiau equation
• Nonminimal planar electrodynamics modified by higher-derivative terms
• Relativistic scalar particle subject to a confining potential and Lorentz symmetry breaking effects in the cosmic string spacetime
• Quantum effects on an atom with a magnetic quadrupole moment in a region with a time-dependent magnetic field
• He-McKellar-Wilkens-type effect from the Lorentz symmetry breaking effects
• Lorentz violation and Condensed Matter Physics