Stimulated spin noise in an activated crystal

Переведенное название: Стимулированный спиновый шум в активированном кристале

M.M. Sharipova, A.A. Kamenskii, I.I. Ryzhov, M.Yu. Petrov, G.G. Kozlov, A. Greilich, M. Bayer, V.S. Zapasskii

Результат исследований: Научные публикации в периодических изданияхстатья

3 Загрузки (Pure)

Аннотация

In the spin noise spectroscopy, the magnetic susceptibility spectrum is known to be provided by the spinsystem untouched by any external perturbation, or, better to say, disturbed only by its thermal bath. We propose a new version of the spin noise spectroscopy, with the detected magnetization (Faraday-rotation)
noise being stimulated by an external fluctuating magnetic field with a quasi-white spectrum. Experimental study of the stimulated spin noise performed on a BaF2 : U 3+ crystal in a longitudinal magnetic field has revealed specific features of this approach and allowed us to identify the Van-Vleck and population-related contributions to the AC susceptibility of the system and to discover unusual magnetic-field dependence of the longitudinal spin relaxation rate in low magnetic fields. It is shown that spectra of the stimulated and spontaneous spin noise, being both closely related to the spin-system magnetic susceptibility, are still essentially different. Distinctions between the two types of the spin-noise spectra and two approaches to the spin noise spectroscopy are discussed.
Язык оригиналаанглийский
Номер статьи143901
Страницы (с-по)143901
Число страниц6
ЖурналJournal of Applied Physics
Том126
Номер выпуска14
Ранняя дата в режиме онлайн8 окт 2019
DOI
СостояниеОпубликовано - 14 окт 2019

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Предметные области Scopus

  • Физика и астрономия (все)

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