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HYPERFINE INTERACTIONS IN THE GROUND STATE AND FIRST EXCITED STATE OF Dy$sup 161$ IN DYSPROSIUM IRON GARNET

Journal Article · · Phys. Rev. Letters
The hyperfine Zeeman splitting of the Mossbauer absorption spectrum in dysprosium iron garnet is studied. The Dy/sup 1//sup 6//sup 1//sup m/ 26 kev gamma rays are absorbed at 85 and 300 deg K, and the relative absorption cross sections are measured for +12 to -12 cm/sec relative emitter-absorber velocity. The results are analyzed in terms of a 5/2 spin first excited state with opposite magnetic moment to the ground state. A large observed temperature-dependent quadrupole effect is explained in terms of alignment of the 4f electrons below the Curie temperature. (T.F.H.)
Research Organization:
Hebrew Univ., Jerusalem
NSA Number:
NSA-15-017612
OSTI ID:
4015488
Report Number(s):
AFOSR-987
Journal Information:
Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 6
Country of Publication:
Country unknown/Code not available
Language:
English