Spin Fluctuations in a Magnetically Ordered Cr 2 O 3 –Fe 2 O 3  System | Zendy

Srivastava J. K. | Zendy; Sharma R. P. | Zendy

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Spin Fluctuations in a Magnetically Ordered Cr 2 O 3 –Fe 2 O 3 System

Author(s) -

Srivastava J. K.,

Sharma R. P.

Publication year - 1969

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.19690350151

Subject(s) - hyperfine structure , atmospheric temperature range , spin (aerodynamics) , condensed matter physics , field (mathematics) , relaxation (psychology) , ground state , spectral line , range (aeronautics) , chemistry , materials science , physics , atomic physics , thermodynamics , mathematics , psychology , social psychology , pure mathematics , composite material , astronomy

The study of Mössbauer spectra of the solid solution 0.905 Cr 2 O 3 —0.035 Fe 2 O 3 at different temperatures in the range 10 to 293 °K has revealed spin relaxation effects in this antiferromagnetically ordered system in a wide temperature range (100 to 289 °K) below the Néel temperature (289 °K). The variation of the hyperfine field with temperature is found to be almost linear from 10 °K onward. Above 100 °K the hyperfine field calculated from the total splitting is more than that obtained from ground state splitting. The observed results are compared with the existing spin‐flip theory based on a stochastic model.

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