Cross relaxation studies in the Cr 3+ ‐doped magnetically dilute paramagnetic Al 2 O 3 –Fe 2 O 3  system. II. Effect of temperature and external magnetic field | Zendy

Srivastava J. K. | Zendy; Dale B. W. | Zendy

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Cross relaxation studies in the Cr 3+ ‐doped magnetically dilute paramagnetic Al 2 O 3 –Fe 2 O 3 system. II. Effect of temperature and external magnetic field

Author(s) -

Srivastava J. K.,

Dale B. W.

Publication year - 1978

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.2220900215

Subject(s) - diamagnetism , paramagnetism , condensed matter physics , doping , magnetic field , mössbauer spectroscopy , materials science , ion , relaxation (psychology) , nuclear magnetic resonance , chemistry , analytical chemistry (journal) , crystallography , physics , quantum mechanics , psychology , social psychology , organic chemistry , chromatography

Mössbauer measurements carried out at 4.2 and 300 K in the undoped and Cr 3+ ‐doped paramagnetic Al 2 O 3 –0.04 mol% 57 Fe 2 O 3 system indicate a temperature independence of Fe 3+ –Cr 3+ cross relaxation process in the diamagnetic Al 2 O 3 lattice. The measurements made in an external magnetic field H ext , of 30 kOe, applied perpendicular to the γ‐ray beam, show that even in the presence of large H ext , Cr 3+ ions have appreciable effect on the shapes of Mössbauer spectra.

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