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Schottky‐type anomaly in the linear optical birefringence of DyPO 4

1975; Wiley; Volume: 68; Issue: 2 Linguagem: Inglês

10.1002/pssb.2220680209

1521-3951

I. R. Jahn, S. H. Smith,

Thermal and Kinetic Analysis

Abstract The linear optical birefringence of DyPO 4 shows anomalous temperature behaviour between 10 and 150 K. The effect is considered to be due to the excitation of a higher crystal field component of the 6 H 15/2 ground state of Dy 3+ . From this the separation between the lowest and the first excited state is determined as Δ/ k = (97 ± 3.5) K.