Experimental and Theoretical Investigation of the Spin Hamiltonian Parameters for the Cr3+ Ion in a BeAl2O4:Cr3+ Crystal

被引：2

作者：

Yeom, Tae Ho ^{[1
]}

Du, Mao Lu ^{[2
,3
]}

机构：

[1] Cheongju Univ, Dept Laser & Opt Informat Engn, Cheongju 28503, South Korea

[2] Southwestern Inst Nationalities, Dept Phys, Chengdu 610041, Sichuan, Peoples R China

[3] CCAST World Lab, Beijing 100080, Peoples R China

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2019年 / 74卷 / 03期

关键词：

BeAl2O4:Cr3+ crystal; EPR; Spin Hamiltonian parameters; Crystal field theory; ELECTRON-PARAMAGNETIC-RES; ALEXANDRITE LASER; MAGNETIC-RESONANCE; SPECTRUM; MODEL; SYMMETRY; SITES; AL-27; CR-3+; BE-9;

D O I：

10.3938/jkps.74.245

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron paramagnetic resonance of the Cr3+ ion in an alexandrite single crystal was explored. The angular dependence of the resonance fields observed using an X-band spectrometer in the crystallographic planes were analyzed using the monoclinic spin Hamiltonian. The spectroscopic splitting tensors g(i) and the 2nd order zero field splitting parameters vertical bar D vertical bar and vertical bar E vertical bar for the Cr3+ center at Al3+ site with mirror symmetry (C-s) in an alexandrite crystal were calculated using the crystal field theory for C-s symmetry. Then, the theoretical values were compared with the experimental values. The calculated spin Hamiltonian parameters explain nicely the experimental parameters for the Cr3+ center with mirror symmetry.

引用

页码：245 / 250

页数：6

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