|Title||Influence of classical anisotropy fields on the properties of Heisenberg antiferromagnets within unified molecular field theory|
|Publication Type||Journal Article|
|Year of Publication||2017|
|Journal||Physical Review B|
|Type of Article||Article|
0 in the H-z-T plane are constructed for spins S = 1/2. For h(A1) = 0, the SF phase is stable at low field and the PM phase at high field with no AFM phase present. As h(A1) increases, the phase diagram contains the AFM, SF, and PM phases. Further increases in h(A1) lead to the disappearance of the SF phase and the appearance of a tricritical point on the AFM-PM transition curve. Applications of the theory to extract h(A1) from experimental low-field magnetic susceptibility data and high-field magnetization versus field isotherms for single crystals of AFMs are discussed.
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