Fine interactions and the Jahn-Teller effect in luminescence of Fe2+ in II-VI compounds

被引：0

作者：

Bevilacqua, G ^{[1
]}

Martinelli, L ^{[1
]}

Russo, G ^{[1
]}

Parravicini, GP ^{[1
]}

Mualin, O ^{[1
]}

Vogel, EE ^{[1
]}

de Orúe, MA ^{[1
]}

Rivera-Iratchet, J ^{[1
]}

机构：

[1] Univ Pisa, INFM, I-56126 Pisa, Italy

来源：

VIBRONIC INTERACTIONS: JAHN-TELLER EFFECT IN CRYSTALS AND MOLECULES | 2001年 / 39卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Infrared luminescence spectra of Fe2+ in II-VI zinc-blende structures show more than 4 unequally spaced lines. To explain such experimental features, we introduce a Jahn-Teller coupling to acoustical phonons of E symmetry. We apply and compare two independent methods: Born-Oppenheimer's and Lanczos'. Additionally we investigate the role of higher-order corrections such as spin-spin and third-order spin-orbit contributions to accurate calculation of energy levels. Details of the emission spectra of ZnS : Fe2+, ZnSe : Fe2+, ZnTe : Fe2+, and CdTe: Fe2+ are explained as due to a weak Jahn-Teller coupling which is enhanced when the energy of the coupling phonon is close to the spacing between electronic levels of appropriate symmetry.

引用

页码：367 / 376

页数：10

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