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Спины носителей тока - зонды физико-химических превращений в проводниках: графит и его интеркалированные соединения

Спины носителей тока - зонды физико-химических превращений в проводниках: графит и его интеркалированные соединения

Abstract

Features of the method of conduction electron spin resonance (CESR) for investigation of physical and chemical transformations in conductors are demonstrated using the example of such investigations with graphite and its intercalation compounds (GICs). The following issues are considered in detail: conduction electron spins as probes of magnetic properties of chemical reaction front in graphite; peculiarities of temperature dependence of CESR signal width as a source of information about current carrier spin relaxation channels appearing at physical and chemical transformations in intercalate subsystem; monitoring of CESR signal intensity as a method for study of chemical potential variations at physical and chemical transformations in graphite and its intercalation compounds; determination of origin and value of interlayer electrical conductivity in GICs from CESR signal data.

Продемонстрированы возможности метода спинового резонанса на электронах проводимости (СРЭП) для изучения физических и химических превращений в проводниках на примере результатов подобных исследований графита и интеркалированных соединений графита (ИСГ). Детально рассмотрены следующие вопросы: спины электронов проводимости как зонды магнитных свойств фронта химической реакции в графите; особенности температурной зависимости ширины сигнала СРЭП как источник информации о каналах спиновой релаксации носителей тока, появляющихся при физических и химических превращениях в подсистеме интеркалата; контроль интенсивности сигнала СРЭП как метод изучения изменений химического потенциала при физических и химических превращениях в графите и его интеркалированных соединениях; определение из данных СРЭП происхождения и значения межслоевой электропроводности в ИСГ.

Keywords

ГРАФИТ, ИНТЕРКАЛИРОВАННЫЕ СОЕДИНЕНИЯ ГРАФИТА, СПИНОВЫЙ РЕЗОНАНС НА ЭЛЕКТРОНАХ ПРОВОДИМОСТИ, ФАЗОВЫЕ ПЕРЕХОДЫ, ХИМИЧЕСКИЕ РЕАКЦИИ

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold