Spectral and magnetooptical studies of the magnetic phase diagram in erbium ferrite-garnet at low temperatures
A. I. BelyaevaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRR. A. VaishnorasPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRV. V. EremenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRВ. И. СилаевPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRYu. N. Stel’makhovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
ABI
Abstract
The features of the magnetic reversal of erbium ferrite garnet in the (110) plane are studied at T = 4.2 °K. For this purpose at the same time we study the domain structure by means of the Faraday magnetooptic effect and the absorption spectra in the region of the 4I15/2→4S3/2 transition of the Er3+ ion for each domain. The phase diagram is determined experimentally in the range of magnetic fields from 0 to 40 kOe.
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