Impurity spin in normal stochastic field: basic model of magnetic resonance

Impurity spin in normal stochastic field: basic model of magnetic resonance

Famous Anderson-Weiss-Kubo model of magnetic resonance is reconsidered in order to bridge existing gaps in its applications for solutions of fundamental problems of spin dynamics and theory of master equations. The model considers the local field fluctuations as one-dimensional normal random process...

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Main Author: Dzheparov F.S., Lvov D.V.
Format: Article
Language:English
Published: Kazan Federal University 2016-12-01
Series:Magnetic Resonance in Solids
Online Access:http://mrsej.kpfu.ru/contents/2016/MRSej_16201.pdf
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spelling doaj-e9c3339553504d75b556ffed90a354832020-11-24T22:33:41ZengKazan Federal UniversityMagnetic Resonance in Solids2072-59812016-12-0118216201 Impurity spin in normal stochastic field: basic model of magnetic resonanceDzheparov F.S., Lvov D.V. Famous Anderson-Weiss-Kubo model of magnetic resonance is reconsidered in order to bridge existing gaps in its applications for solutions of fundamental problems of spin dynamics and theory of master equations. The model considers the local field fluctuations as one-dimensional normal random process. We refined the conditions of applicability of perturbation theory to calculate the spin depolarization. It is shown that for very slow fluctuations the behavior of the longitudinal magnetization is simply related to the correlation function of the local field. The effect could be checked by the experimental studies of magnetic resonance in quasi-Ising paramagnets.http://mrsej.kpfu.ru/contents/2016/MRSej_16201.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Dzheparov F.S., Lvov D.V.
spellingShingle Dzheparov F.S., Lvov D.V.
Impurity spin in normal stochastic field: basic model of magnetic resonance
Magnetic Resonance in Solids
author_facet Dzheparov F.S., Lvov D.V.
author_sort Dzheparov F.S., Lvov D.V.
title Impurity spin in normal stochastic field: basic model of magnetic resonance
title_short Impurity spin in normal stochastic field: basic model of magnetic resonance
title_full Impurity spin in normal stochastic field: basic model of magnetic resonance
title_fullStr Impurity spin in normal stochastic field: basic model of magnetic resonance
title_full_unstemmed Impurity spin in normal stochastic field: basic model of magnetic resonance
title_sort impurity spin in normal stochastic field: basic model of magnetic resonance
publisher Kazan Federal University
series Magnetic Resonance in Solids
issn 2072-5981
publishDate 2016-12-01
description Famous Anderson-Weiss-Kubo model of magnetic resonance is reconsidered in order to bridge existing gaps in its applications for solutions of fundamental problems of spin dynamics and theory of master equations. The model considers the local field fluctuations as one-dimensional normal random process. We refined the conditions of applicability of perturbation theory to calculate the spin depolarization. It is shown that for very slow fluctuations the behavior of the longitudinal magnetization is simply related to the correlation function of the local field. The effect could be checked by the experimental studies of magnetic resonance in quasi-Ising paramagnets.
url http://mrsej.kpfu.ru/contents/2016/MRSej_16201.pdf
work_keys_str_mv AT dzheparovfslvovdv impurityspininnormalstochasticfieldbasicmodelofmagneticresonance
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