磁性纳米分子和纳米团簇的自旋超辐射
Spin superradiance by magnetic nanomolecules and nanoclusters
摘要：
磁性纳米分子和纳米团簇的组装体的自旋动力学可以通过将样品插入谐振电路的线圈中而变得相干。通过线圈的产生的反馈磁场来组织相干性。磁性样品与共振电路的耦合引起快速自旋弛豫和相干自旋辐射，即超辐射。我们认为自旋动力学描述的一个现实的哈密顿量，典型的磁性纳米分子和纳米团簇。磁各向异性的作用进行了研究。一个特别注意的是与磁性样品和谐振器线圈的相互取向的几何效应。
英文摘要：
Spin dynamics of assemblies of magnetic nanomolecules and nanoclusters can be made coherent by inserting the sample into a coil of a resonant electric circuit. Coherence is organized through the arising feedback magnetic field of the coil. The coupling of a magnetic sample with a resonant circuit induces fast spin relaxation and coherent spin radiation, that is, superradiance. We consider spin dynamics described by a realistic Hamiltonian, typical of magnetic nanomolecules and nanoclusters. The role of magnetic anisotropy is studied. A special attention is paid to geometric effects related to the mutual orientation of the magnetic sample and resonator coil.
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