关于“普遍发散的 Gruneisen 参数及其在量子临界点附近的磁热效应”之意见
强关联电子
2007-05-23 v1 材料科学
摘要
In a recent Letter, Zhu et al. [L. Zhu et al., Phys. Rev. Lett. 91, 066404 (2003)], obtained the divergence of the Gruneisen ratio close to a quantum critical point (QCP). We show that, in the case the effective dimension associated with the QCP is larger that the upper critical dimension (d+z >4), their result is inconsistent with the thermodynamic Ehrenfest equation. We discuss the reasons for this inconsistency.
引用
@article{arxiv.cond-mat/0408217,
title = {Comment on "Universally Diverging Gruneisen Parameter and the Magnetocaloric Effect Close to a Quantum Critical Point"},
author = {Mucio A. Continentino},
journal= {arXiv preprint arXiv:cond-mat/0408217},
year = {2007}
}
备注
1 page, no figure