Easy plane anisotropy in Bi2CuO4 (CROSBI ID 155941)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Herak, Mirta ; Miljak, Marko ; Dhalenne, Guy ; Revcolevschi, Alexandre
engleski
Easy plane anisotropy in Bi2CuO4
dc magnetic susceptibility measurements and the torque magnetometry were used to experimentally probe the symmetry of the antiferromagnetically (AFM) ordered state of Bi2CuO4. A phenomenological approach to the anisotropy energy is used to model the angular dependence of torque for easy axis and easy plane anisotropy. Comparison of these results with the experimentally obtained curves leads to the conclusion that antiferromagnetically ordered state in Bi2CuO4 has an easy plane anisotropy with the c plane as an easy plane. The estimated value of the critical field for the spin–flop in the easy plane is Hc = 15−20 kOe giving the easy plane anisotropy energy constant K22 = 27−47·10^3 erg/mol. The resulting antiferromagnetic structure contains two equally populated mutually perpendicular AFM domains in zero magnetic field.
magnetic susceptibility; magnetic anisotropy; torque magnetometry; Bi2CuO4
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
22 (2)
2010.
026006-1-026006-13
objavljeno
0953-8984
10.1088/0953-8984/22/2/026006