RUI: Micromagnetism of Quantum and Disordered Systems

发展微观量子隧穿的综合理论 在磁性系统中。 该研究将与正在进行的 实验，并将包括隧道速率的计算， 磁各向异性的典型形式和磁各向异性的典型几何形状 实验，磁相互作用在一个小的合奏效果 铁磁粒子，存在时变隧穿 磁场，耗散由于相互作用的 具有微观自由度的磁化。也有磁性 反铁磁体和自旋玻璃中的量子隧穿， 有限温度理论的推广。此外，PI将 非晶相关自旋玻璃理论的继续研究 磁铁 PI计划将理论扩展到非晶系统 有几个磁子网络和波动的交换 相互作用，考虑一个系统的密集堆积无定形 铁磁粒子，并研究长波长自旋 关联自旋玻璃重入相中的激发 过渡

To develop a comprehensive theory of microscopic quantum tunneling in magnetic systems. The study will be linked to ongoing experiments and will include the calculation of tunneling rates for typical forms of magnetic anisotropy and typical geometries of experiment, effect of magnetic interactions in an ensemble of small ferromagnetic particles, tunneling in presence of time dependent magnetic field, dissipation due to the interaction of the magnetization with microscopic degrees of freedom,. Also magnetic quantum tunneling in antiferromagnets and spin glasses and extension of the theory for finite temperature. Also, the PI will continue research on the correlated spin glass theory of amorphous magnet. The PI plans to extend the theory for amorphous systems with several magnetic sub-networks and fluctuating exchange interaction, to consider a system of densely packed amorphous ferromagnetic particles, and to study long wavelength spin excitations in the correlated spin glass - reentrant phase transition.