Details
| Original language | English |
|---|---|
| Pages (from-to) | 429-434 |
| Number of pages | 6 |
| Journal | Physics Letters A |
| Volume | 155 |
| Issue number | 6-7 |
| Publication status | Published - 20 May 1991 |
Abstract
The spin depolarization is investigated by random transition processes between two rotation frequencies ω1 and ω2, where the spin and the two rotation frequencies may have arbitrary orientations in three-dimensional space. A general expression for the dynamics of the spin polarization is derived in the Laplace domain. For rapid transitions between both frequencies a spin precession with the average frequency 1 2(ω1+ω2) is found, which is damped in accordance with motional narrowing. An average of the results over Gaussian distributions of the rotation frequencies ω1 and ω2 is also performed. For large transition rates the result of the static Kubo-Toyabe theory is recovered.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physics Letters A, Vol. 155, No. 6-7, 20.05.1991, p. 429-434.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Longitudinal spin relaxation in the random-two-frequency model
AU - Borgs, P.
AU - Kehr, K. W.
AU - Heitjans, P.
N1 - Funding Information: We would like to thank K. Kitahara and A. Schirmer for discussionsT. his work was also supported by the DeutscheF orschungsgemeinschafl.
PY - 1991/5/20
Y1 - 1991/5/20
N2 - The spin depolarization is investigated by random transition processes between two rotation frequencies ω1 and ω2, where the spin and the two rotation frequencies may have arbitrary orientations in three-dimensional space. A general expression for the dynamics of the spin polarization is derived in the Laplace domain. For rapid transitions between both frequencies a spin precession with the average frequency 1 2(ω1+ω2) is found, which is damped in accordance with motional narrowing. An average of the results over Gaussian distributions of the rotation frequencies ω1 and ω2 is also performed. For large transition rates the result of the static Kubo-Toyabe theory is recovered.
AB - The spin depolarization is investigated by random transition processes between two rotation frequencies ω1 and ω2, where the spin and the two rotation frequencies may have arbitrary orientations in three-dimensional space. A general expression for the dynamics of the spin polarization is derived in the Laplace domain. For rapid transitions between both frequencies a spin precession with the average frequency 1 2(ω1+ω2) is found, which is damped in accordance with motional narrowing. An average of the results over Gaussian distributions of the rotation frequencies ω1 and ω2 is also performed. For large transition rates the result of the static Kubo-Toyabe theory is recovered.
UR - http://www.scopus.com/inward/record.url?scp=0041762876&partnerID=8YFLogxK
U2 - 10.1016/0375-9601(91)91052-F
DO - 10.1016/0375-9601(91)91052-F
M3 - Article
AN - SCOPUS:0041762876
VL - 155
SP - 429
EP - 434
JO - Physics Letters A
JF - Physics Letters A
SN - 0375-9601
IS - 6-7
ER -