SPIN-WAVE-ASSISTED PHOTOLUMINESCENCE IN MNS

被引：10

作者：

MOCHIZUKI, S

机构：

[1] Dept. of Phys., Coll. of Humanities and Sci., Nihon Univ., Tokyo

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1990年 / 2卷 / 34期

关键词：

D O I：

10.1088/0953-8984/2/34/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The author reports the observation of the photoluminescence in antiferromagnetic MnS. A strong emission band centred at 1.43 eV is observed at 78 K in MnS powder. The Stokes shift from the lowest 3d crystal-field absorption peak is at least 0.6 eV. The temperature dependences of the emission peak energy, the integrated intensity and the decay curve of the photoluminescence are measured at various temperatures from 78 to 200 K. The results are interpreted qualitatively by a model in which the emission originates from the impurity- and defect-perturbed Mn2+ excitons by taking into account the spin ordering of Mn2+ ions.

引用

页码：7225 / 7231

页数：7

共 8 条

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