Double exchange between chromium ions in the KZnF3:Cr3+,Cr2+ crystal

M. V. Eremin; Sergey I. Nikitin; N. I. Silkin; A. I. Tsvetkov; R. V. Yusupov

doi:10.1117/12.229164

3 January 1996 Double exchange between chromium ions in the KZnF₃:Cr³⁺,Cr²⁺ crystal

M. V. Eremin, Sergey I. Nikitin, N. I. Silkin, A. I. Tsvetkov, R. V. Yusupov

Proceedings Volume 2706, Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transitional-Metal Ions; (1996) https://doi.org/10.1117/12.229164
Event: Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare Earth and Transitional Ions, 1995, St. Petersburg, Russian Federation

Abstract

In the optical spectrum of the KZnF₃ crystal doped with chromium ions, the absorption lines of Cr²⁺-Cr³⁺ ion pairs with dynamic electron transfer between chromium ions via the intermediate fluorine ion (double 180 degree exchange) are observed. The value of the transfer integral for the e_g-electron was directly measured for the first time using the temperature dependence of the integral intensity of the absorption lines.

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M. V. Eremin, Sergey I. Nikitin, N. I. Silkin, A. I. Tsvetkov, and R. V. Yusupov "Double exchange between chromium ions in the KZnF₃:Cr³⁺,Cr²⁺ crystal", Proc. SPIE 2706, Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transitional-Metal Ions, (3 January 1996); https://doi.org/10.1117/12.229164

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