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"J Magn Reson" Category Publications:

Title Authors PubMed ID
1 Angular variation of electron paramagnetic resonance spectrum: simulation of a polycrystalline EPR spectrum. Misra SK 10053135
PHYSICS
2 A rigorous evaluation of spin-Hamiltonian parameters and linewidth from a polycrystalline EPR spectrum. Misra SK 10479561
PHYSICS
3 Variable-frequency EPR study of Mn(2+)-doped NH(4)Cl(0.9)I(0.1) single crystal at 9.6, 36, and 249.9 GHz: structural phase transition. Misra SK, Andronenko SI, Rinaldi G, Chand P, Earle KA, Freed JH 12615154
PHYSICS
4 A variable temperature EPR study of Mn(2+)-doped NH(4)Cl(0.9)I(0.1) single crystal at 170 GHz: zero-field splitting parameter and its absolute sign. Misra SK, Andronenko SI, Chand P, Earle KA, Paschenko SV, Freed JH 15862243
PHYSICS
5 Exchange-mediated spin-lattice relaxation of Fe3+ ions in borate glasses. Misra SK, Pilbrow JR 17140823
PHYSICS
6 Simulation of slow-motion CW EPR spectrum using stochastic Liouville equation for an electron spin coupled to two nuclei with arbitrary spins: matrix elements of the Liouville superoperator. Misra SK 17881269
PHYSICS
7 A multifrequency EPR study of Fe2+ and Mn2+ ions in a ZnSiF(6).6H2O single crystal at liquid-helium temperatures. Misra SK, Diehl S, Tipikin D, Freed JH 20395160
PHYSICS
8 Theory of EPR lineshape in samples concentrated in paramagnetic spins: effect of enhanced internal magnetic field on high-field high-frequency (HFHF) EPR lineshape. Misra SK, Diehl S 22613039
PHYSICS

 

Title:Exchange-mediated spin-lattice relaxation of Fe3+ ions in borate glasses.
Authors:Misra SKPilbrow JR
Link:https://www.ncbi.nlm.nih.gov/pubmed/17140823?dopt=Abstract
Publication:
Keywords:
PMID:17140823 Category:J Magn Reson Date Added:2019-06-04
Dept Affiliation: PHYSICS
1 Physics Department, Concordia University, 1455 de Maisonneuve Boulevard West, Montreal, Que., Canada H3G 1M8. skmisra@alcor.concordia.ca

Description:

Exchange-mediated spin-lattice relaxation of Fe3+ ions in borate glasses.

J Magn Reson. 2007 Mar;185(1):38-41

Authors: Misra SK, Pilbrow JR

Abstract

Spin-lattice relaxation times (T1) of two borate glasses doped with different concentrations of Fe2O3 were measured using the Electron Spin-Echo (ESE) technique at X-band (9.630 GHz) in the temperature range 2-6K. In comparison with a previous investigation of Fe3+-doped silicate glasses, the relaxation rates were comparable and differed by no more than a factor of two. The data presented here extend those previously reported for borate glasses in the 10-250K range but measured using the amplitude-modulation technique. The T1 values were found to depend on temperature (T) as T(n) with n approximately 1 for the 1% and 0.1% Fe2O3-doped glass samples. These results are consistent with spin-lattice relaxation as effected by exchange interaction of a Fe3+ spin exchange-coupled to another Fe3+ spin in an amorphous material.

PMID: 17140823 [PubMed - indexed for MEDLINE]





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