The ESR spectra of Mn<Superscript>2+</Superscript> ions and the low-temperature NQR spectra of <Superscript>175</Superscript>Lu in LuNbO<Subscript>4</Subscript> crystals期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

The ESR spectra of Mn2+ ions and the low-temperature NQR spectra of 175Lu in LuNbO4 crystals

Authors:	A. G. Beda A. A. Bush A. F. Volkov V. F. Meshcheryakov

Affiliation:	(1) Alikhanov Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bol’shaya Cheremushkinskaya ul. 25, Moscow, 117218, Russia;(2) Moscow State Institute of Radio Engineering, Electronics, and Automation (Technical University), pr. Vernadskogo 78, Moscow, 119454, Russia;(3) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia

Abstract:	The electron-spin resonance spectra of Mn²⁺ ions and nuclear-quadrupole resonance spectra of ¹⁷⁵Lu are investigated to find out the possibility of implementing the technique of dynamic alignment of nuclei using LuNbO₄ single crystals doped with Mn²⁺. An estimate for the electron-spin resonance frequency of Mn²⁺ ions is obtained, and the temperature dependences of the quadrupole coupling constant eQq and the anisotropy parameter that characterizes the asymmetry of the electric field gradient at ¹⁷⁵Lu nuclei are studied. It is demonstrated that LuNbO₄ single crystals doped with Mn²⁺ ions can be used as working media in experiments on dynamic alignment of nuclei.

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