Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids

Research output

Abstract

The impurity relaxation via spin diffusion is effective when the local inverse spin temperature near defects, *loc, is closer to the equilibrium value equal to the inverse lattice temperature, *l, than the average value over the sample, <*>. If the spin-lattice relaxation time is measured using the conventional saturation recovery procedure, the impurity relaxation proceeds under the condition *loc > <*>. A rather strong additional magnetic (as well as acoustic or electric) steady saturation produces local heating of the nuclear spin-system, corresponding to *loc = 0 while <*> is equal to a steady-state value <*>st > 0. This means that the regions near impurities become warmer than the spin-system in the main crystal volume. In this case, the impurity relaxation should be turned off and the restoration of the magnetization in the sample should be caused by the lattice mechanism only.
Original languageEnglish
Pages5
Number of pages5
Publication statusPublished - 20 Nov 2016
Event13-th International Youth School-Conference “Magnetic Resonance and its applications” - Санкт-Петербург
Duration: 20 Nov 201626 Nov 2016
Conference number: 13
https://search.rsl.ru/ru/record/01009379134

Conference

Conference13-th International Youth School-Conference “Magnetic Resonance and its applications”
Abbreviated titleSpinus 2016
CountryRussian Federation
CityСанкт-Петербург
Period20/11/1626/11/16
Internet address

Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Микушев, В. М., & Чарная, Е. В. (2016). Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids. 5. Abstract from 13-th International Youth School-Conference “Magnetic Resonance and its applications”, Санкт-Петербург, .
Микушев, Владимир Михайлович ; Чарная, Елена Владимировна. / Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids. Abstract from 13-th International Youth School-Conference “Magnetic Resonance and its applications”, Санкт-Петербург, .5 p.
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title = "Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids",
abstract = "The impurity relaxation via spin diffusion is effective when the local inverse spin temperature near defects, *loc, is closer to the equilibrium value equal to the inverse lattice temperature, *l, than the average value over the sample, <*>. If the spin-lattice relaxation time is measured using the conventional saturation recovery procedure, the impurity relaxation proceeds under the condition *loc > <*>. A rather strong additional magnetic (as well as acoustic or electric) steady saturation produces local heating of the nuclear spin-system, corresponding to *loc = 0 while <*> is equal to a steady-state value <*>st > 0. This means that the regions near impurities become warmer than the spin-system in the main crystal volume. In this case, the impurity relaxation should be turned off and the restoration of the magnetization in the sample should be caused by the lattice mechanism only.",
keywords = "solid state NMR, spin-lattice relaxation, nuclear spin diffusion",
author = "Микушев, {Владимир Михайлович} and Чарная, {Елена Владимировна}",
note = "Magnetic resonance and its applications [Текст] : ... International youth school-conference : [Spinus] : an Ampere event : abstracts / Saint Petersburg state university, Departament of nuclear physics research methods 13th : November 20-26, 2016, Saint Petersburg, Russia. - [2016]. - 260 с. : ил., табл., цв. ил., табл. ISBN 978-5-9651-1009-4, BBK-код: В334.22я431(0); В381.61я431(0).; null ; Conference date: 20-11-2016 Through 26-11-2016",
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language = "English",
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Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids. / Микушев, Владимир Михайлович; Чарная, Елена Владимировна.

2016. 5 Abstract from 13-th International Youth School-Conference “Magnetic Resonance and its applications”, Санкт-Петербург, .

Research output

TY - CONF

T1 - Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids

AU - Микушев, Владимир Михайлович

AU - Чарная, Елена Владимировна

N1 - Magnetic resonance and its applications [Текст] : ... International youth school-conference : [Spinus] : an Ampere event : abstracts / Saint Petersburg state university, Departament of nuclear physics research methods 13th : November 20-26, 2016, Saint Petersburg, Russia. - [2016]. - 260 с. : ил., табл., цв. ил., табл. ISBN 978-5-9651-1009-4, BBK-код: В334.22я431(0); В381.61я431(0).

PY - 2016/11/20

Y1 - 2016/11/20

N2 - The impurity relaxation via spin diffusion is effective when the local inverse spin temperature near defects, *loc, is closer to the equilibrium value equal to the inverse lattice temperature, *l, than the average value over the sample, <*>. If the spin-lattice relaxation time is measured using the conventional saturation recovery procedure, the impurity relaxation proceeds under the condition *loc > <*>. A rather strong additional magnetic (as well as acoustic or electric) steady saturation produces local heating of the nuclear spin-system, corresponding to *loc = 0 while <*> is equal to a steady-state value <*>st > 0. This means that the regions near impurities become warmer than the spin-system in the main crystal volume. In this case, the impurity relaxation should be turned off and the restoration of the magnetization in the sample should be caused by the lattice mechanism only.

AB - The impurity relaxation via spin diffusion is effective when the local inverse spin temperature near defects, *loc, is closer to the equilibrium value equal to the inverse lattice temperature, *l, than the average value over the sample, <*>. If the spin-lattice relaxation time is measured using the conventional saturation recovery procedure, the impurity relaxation proceeds under the condition *loc > <*>. A rather strong additional magnetic (as well as acoustic or electric) steady saturation produces local heating of the nuclear spin-system, corresponding to *loc = 0 while <*> is equal to a steady-state value <*>st > 0. This means that the regions near impurities become warmer than the spin-system in the main crystal volume. In this case, the impurity relaxation should be turned off and the restoration of the magnetization in the sample should be caused by the lattice mechanism only.

KW - solid state NMR, spin-lattice relaxation, nuclear spin diffusion

M3 - Abstract

SP - 5

ER -

Микушев ВМ, Чарная ЕВ. Influence of resonance saturation fields on impurity spin-lattice relaxation of nuclear spin systems in solids. 2016. Abstract from 13-th International Youth School-Conference “Magnetic Resonance and its applications”, Санкт-Петербург, .