Linear Magnetic Birefringence in Transition Metal Oxides: CoO | Zendy

Germann K. H. | Zendy; Maier K. | Zendy; Strauss E. | Zendy

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Linear Magnetic Birefringence in Transition Metal Oxides: CoO

Author(s) -

Germann K. H.,

Maier K.,

Strauss E.

Publication year - 1974

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.2220610209

Subject(s) - antiferromagnetism , condensed matter physics , birefringence , perpendicular , tetragonal crystal system , materials science , cobalt , optics , crystallography , chemistry , physics , crystal structure , geometry , metallurgy , mathematics

The optical linear magnetic birefringence (LMB) of cobalt oxide single crystals was determined as a function of temperature near the antiferromagnetic Néel point. The measurements were taken from single‐domain crystals with the tetragonal c ‐axis oriented parallel or perpendicular to the direction of the light beam. Below T N the change of LMB with temperature in perpendicular arrangement is found to be proportional to the c ‐axis contraction and to the square of the long‐range order parameter. Magnetic short‐range order effects have been observed even far above T N . The results are discussed by means of a magnetostriction model.

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