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首页> 外文会议>Acta physica polonica A >Heisenberg Model of a Ferromagnetic Monolayer Deposited on a Non-Magnetic Bulk Substrate
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Heisenberg Model of a Ferromagnetic Monolayer Deposited on a Non-Magnetic Bulk Substrate

机译：非磁性体衬底上沉积的铁磁单层的海森堡模型

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摘要

A model describing a Heisenberg ferromagnetic monolayer (in a magnetic field) interacting with its nonmagnetic bulk substrate is formulated. We use reduced-density operators to show that physical properties of the monolayer are affected by its interaction with the environment. Particularly the influence of the substrate lattice vibrations on the monolayer exchange parameter is examined. The Gaussian-type orbitals were used to calculate the distance dependence of the exchange parameter and the many-body Green functions to calculate the temperature dependence of the magnetization. Finally, the influence of the Debye temperature of the substrate on the magnetization of the monolayer is depicted. Although the resultant effect is not prominent, we state that interaction of ultrathin magnetic films with their environment has to be taken into account in the construction of the reduced-density operator.
机译：建立描述海森堡铁磁单层（在磁场中）与其非磁性块状基质相互作用的模型。我们使用降低密度的算子来表明单层的物理属性受其与环境的相互作用的影响。特别地，检查衬底晶格振动对单层交换参数的影响。使用高斯型轨道来计算交换参数的距离依赖性，并使用多体格林函数来计算磁化强度的温度依赖性。最后，描述了衬底的德拜温度对单层磁化强度的影响。尽管产生的效果并不明显，但我们指出在构造密度降低的算子时必须考虑超薄磁性膜与其周围环境的相互作用。

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