Chiral exponents in frustrated spin models with noncollinear order

Article

关键词: RENORMALIZATION-GROUP ANALYSIS;    STACKED TRIANGULAR LATTICES;    PHASE-TRANSITIONS;    2ND-ORDER TRANSITION;    HEISENBERG-MODEL;    XY;    ANTIFERROMAGNETS;    SYSTEMS;    BEHAVIOR;    MAGNETS;   

DOI  :  10.1103/PhysRevB.65.020403

来源: SCIE

【 摘 要 】

We compute the chiral critical exponents for the chiral transition in frustrated two- and three-component spin systems with noncollinear order, such as stacked triangular antiferromagnets (STA). For this purpose, we calculate and analyze the six-loop field-theoretical expansion of the renormalization-group function associated with the chiral operator. The results are in satisfactory agreement with those obtained in the recent experiment on the XY STA CsMnBr3 reported by [V. P. Plakhty et al., Phys. Rev. Lett. 85, 3942 (2000)], providing further support for the continuous nature of the chiral transition.

【 授权许可】

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