We analyze the thermodynamic properties of antiferromagnetic solids subjected to a combination of mutually orthogonal uniform magnetic and staggered fields. Low-temperature series for the pressure, order parameter and magnetization up to two-loop order in the effective expansion are established. We evaluate the self-energy and the dispersion relation of the dressed magnons in order to discuss the impact of spin-wave interactions on thermodynamic observables.

中文翻译：

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磁场中反铁磁固体的热力学

我们分析了受相互正交的均匀磁场和交错场组合影响的反铁磁固体的热力学性质。建立了有效膨胀中压力、阶次参数和磁化强度的低温序列，达到二环阶次。为了讨论自旋波相互作用对热力学可观测量的影响，我们评估了自能和磁振子的色散关系。