Nuclear polarization in homogeneous insb by a direct current

M. Weger*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Clark and Feher have shown that an electric field applied to InSb in a constant magnetic field produces nuclear polarization. Two mechanisms are suggested here to account for nuclear polarizations in homogeneous samples. In one mechanism, the kinetic temperatures of "spin up" and "spin down" electron distributions, θR+ and θR-, are assumed to be different. It is shown that a nuclear polarization of order N+N-A <[τN(θR-)τN(θR+)][τε(θR+) τε(θR-)] may be produced in this case. τN and τε are the nuclear and electronic longitudinal relaxation times (T1's). In the second mechanism, the momentum distribution is assumed to be displaced by an amount Δp due to the applied electric field. A nuclear polarization of order Δp22m*EF may be induced in this case. It is suggested that a sizable fraction of the nuclear polarization observed by Clark and Feher is due to the first of these mechanisms.

Original languageEnglish
Pages (from-to)581-588
Number of pages8
JournalPhysical Review
Volume132
Issue number2
DOIs
StatePublished - 1963
Externally publishedYes

Fingerprint

Dive into the research topics of 'Nuclear polarization in homogeneous insb by a direct current'. Together they form a unique fingerprint.

Cite this