Exchange bias in bulk layered hydroxylammonium fluorocobaltate (NH3OH)2CoF4
作者： Z Jagličić , M Zentková , M Mihalik , Z Arnold , M Drofenik
DOI: 10.1088/0953-8984/24/5/056002
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摘要: The magnetic properties of layered hydroxylammonium fluorocobaltate (NH3OH)2CoF4 were investigated by measuring its dc susceptibility in zero-field-cooled (ZFC) and field-cooled (FC) regimes, frequency dependent ac susceptibility, isothermal magnetization curves after ZFC FC heat capacity. Effects pressure field on phase transitions studied capacity measurements, respectively. system undergoes a transition from paramagnetic state to canted antiferromagnetic exhibiting weak ferromagnetic behavior at TC?=?46.5?K an TN?=?2.9?K. most spectacular manifestation the complex this is shift hysteresis loop temperature range below 20?K regime?an exchange bias phenomenon. We as function during cooling temperature. observed was attributed large anisotropy which exists due quasi-2D structure material.
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