Ag. Anders et al., EPR-SPECTRUM OF CSDY(MOO4)(2) AND STRUCTU RAL PECULIARITIES OF MAGNETICALLY-ORDERED PHASE OF THE CRYSTAL, Fizika nizkih temperatur, 22(9), 1996, pp. 1042-1046
The angular dependences of the EPR spectrum of Dy3+ in the single crys
tal CsDy(MoO4)(2) have been investigated at T = 4,2 K. It is found tha
t the unit cell contains two magnetic uuequivalent centers with coinci
dent extremal values of the g-factar effective tensor (g(a') = 3,7 +/-
0,2; g(b') = 1 +/- 0,5; g(c') = 13,4 +/- 0,5) but tensor axes are tur
ned in space. Based on the energy estimation of dipole-dipole interact
ions in the system, the conclusion about possible structure of the mag
netically ordered state is made. The structure must contain chains of
rare-earth ions oriented along c-axis and connected antiferromagnetica
lly one to another.