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arXiv · 1510.04755

A Model for Correlated Metamagnets: Application to UPt$_3$ and CeRu$_2$Si$_2$

Bellave Shivaram
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Abstract

In a model system with three S=1 pseudo-spins situated in an anisotropic mean field we compute the thermodynamic response in a self consistent manner. An adhoc uniform broadening of all energy levels of the (localized) spins due to their interaction with conduction electrons is introduced. The results with a minimal set of parameters reproduce with remarkable fidelity the properties of the strongly correlated metamagnets UPt$_3$ and CeRu$_2$Si$_2$. Several key predictions are made for further experimental confirmation.

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Bellave Shivaram. 2015-10-16. A Model for Correlated Metamagnets: Application to UPt$_3$ and CeRu$_2$Si$_2$. https://arxiv.org/abs/1510.04755

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