Spectroscopic properties and magnetic phase transitions in scheelite M(I)Cr(MoO4)(2) and wolframite M(I)Cr(WO4)(2) crystals, where M(I) = Li, Na, K, and Cs
J. Hanuza et al., Spectroscopic properties and magnetic phase transitions in scheelite M(I)Cr(MoO4)(2) and wolframite M(I)Cr(WO4)(2) crystals, where M(I) = Li, Na, K, and Cs, J SOL ST CH, 148(2), 1999, pp. 468-478
We present a spectroscopic overview of Cr3+ ions in (MCr)-Cr-1(MO4)(2) sche
elites, a prospective crystals lasing in the infrared region, and new magne
tic materials exhibiting antiferromagnetic ordering (M-1 = Li, Na, K, Cs an
d M = Mo and W). The infrared, Raman, electronic absorption, and fluorescen
ce measurements were conducted at temperatures ranging from 77 to 300 K. Th
e ESR, magnetic susceptibility, and magnetic held dependence were studied i
n the 4-300 It range and discussed in terms of Cr3+ ion properties in these
compounds. The magnetic transitions are reported for all compounds studied
. (C) 1999 Academic Press.