Abstract
The Bloch NMR as an analytical tool was able to address the fundamental features in the learning of spintronics. Beside confirming past assertions on the Rashba spin-orbit interaction, thermal motion of hole and electron spin and features of the quantum well, it was also able to explain the condition necessary for Rashba splitting within the quantum well. When the Rashba energy is 43 meV, it modified the Ehrenfest’s theorem to hold for an external magnetic field. The confinement potential which is the strength of the Rashba spin-orbit interaction was shown to be controlled magnetically.
Highlights
The Bloch NMR model has over the years proven to be a good diagnostic tool for investigating properties of known quantities
The Bloch NMR as an analytical tool was able to address the fundamental features in the learning of spintronics
An in-plane inversion asymmetry can induce a contribution from an in-plane potential gradient, which can strongly enhance the spin splitting [22]
Summary
The Bloch NMR model has over the years proven to be a good diagnostic tool for investigating properties of known quantities. The Bloch NMR equations were used to investigate the thermodynamic properties of system e.g. the Wegner distribution function [3]. One of the major successes of the Rashba term is the measurement of the strength of spin splitting using the Rashba energy of split state and coupling parameter. Low Rashba coupling parameter do not supports the 2 d spintronics device. This year, a layered semiconductor (bismuth tellurohalides) was found to exhibit a large spin splitting [16] which was about 4.8 eV. The gaint spin splitting was first demonstrated on a noble metal [21,22] and further improved on in thin-film [23,24]
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