Spectroscopic Properties and Magnetic Phase Transitions in Scheelite MICr(MoO4)2 and Wolframite MICr(WO4)2 Crystals, where MI=Li, Na, K, and Cs
✍ Scribed by J. Hanuza; M. Mączka; K. Hermanowicz; P.J. Dereń; W. Stręk; L. Folcik; H. Drulis
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 246 KB
- Volume
- 148
- Category
- Article
- ISSN
- 0022-4596
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✦ Synopsis
We present a spectroscopic overview of Cr 3؉ ions in M I Cr(MO 4 ) 2 scheelites, a prospective crystals lasing in the infrared region, and new magnetic materials exhibiting antiferromagnetic ordering (M I ؍ Li, Na, K, Cs and M ؍ Mo and W). The infrared, Raman, electronic absorption, and 6uorescence measurements were conducted at temperatures ranging from 77 to 300 K. The ESR, magnetic susceptibility, and magnetic 5eld dependence were studied in the 4+300 K range and discussed in terms of Cr 3؉ ion properties in these compounds. The magnetic transitions are reported for all compounds studied.