The modulated magnetic structure of α-Fe2O3: Ga weak ferromagnet

Autor:	A. A. Karaev, Z. T. Azamatov, B. Yu. Sokolov, Yu. M. Fedorov
Rok vydání:	2001
Předmět:	Physics Paramagnetism Magnetic anisotropy Physics and Astronomy (miscellaneous) Magnetic domain Condensed matter physics Magnetic structure Diamagnetism Single domain Magnetic hysteresis Magnetic dipole
Zdroj:	Technical Physics. 46:354-356
ISSN:	1090-6525 1063-7842
DOI:	10.1134/1.1356491
Popis:	The domain structure of a diluted weak α-Fe2O3: Ga ferromagnet is considered. Magnetic fields of specific amplitudes and orientations applied in the basal plane of the crystal are found to produce nonuniform magnetic states due to a periodic deviation of the antiferromagnetic vector from the easy axis of crystallographic anisotropy. A phase diagram of the modulated magnetic state with the triad axis is constructed, and a dependence of the spatial period of modulation on an external magnetic field is studied. A phenomenological model and the nature of the magnetic superstructure discovered are discussed.
Databáze:	OpenAIRE
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