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Exchange Bias in the Layered Manganese La 2 O 3 Mn 2 Se 2 as a Function of Temperature and Cooling Magnetic Fields
Author(s) -
Xie Liang,
Zhang Hongguang
Publication year - 2015
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13644
Subject(s) - antiferromagnetism , manganese , ferromagnetism , exchange bias , condensed matter physics , materials science , spin canting , coupling (piping) , magnetic field , chemistry , magnetization , magnetic anisotropy , physics , metallurgy , quantum mechanics
We investigate the exchange bias ( EB ) phenomenon in the layered manganese oxychalcogenides La 2 O 3 Mn 2 Se 2 . The spin canting of the antiferromagnetic ( AFM ) background leads to the ferromagnetic ( FM ) contribution and the exchange coupling at the FM / AFM interface is responsible for the EB phenomenon. Due to the subtle equilibrium of the magnetic states, the EB field shows strong temperature and cooling field H FC dependences. These results suggest that the EB effect in La 2 O 3 Mn 2 Se 2 could be tuned by H FC and temperature, which is important for designing related devices.