量子无序巡游铁磁体近量子相变中自旋涨落上的散射
无序系统与神经网络
2015-06-25 v1
摘要
考虑到无序巡游铁磁体中弱局域化效应引起的长程自旋相互作用,考虑了近量子相变时电子和中子对临界自旋涨落的散射。表明对于低电子密度情况,当k_F \xi \ll 1(其中k_F为费米动量,\xi为磁关联长度)时,电子的输运截面正比于不存在弱局域化效应时的常规临界涨落。然而,多重小角中子散射的强度与常规临界涨落的多重散射强度相比变得指数地小。
引用
@article{arxiv.cond-mat/9906416,
title = {Scattering on spin fluctuations in itinerant quantum disordered ferromagnets near quantum phase transition},
author = {Y. N. Skryabin and A. V. Chukin},
journal= {arXiv preprint arXiv:cond-mat/9906416},
year = {2015}
}
备注
4 pages, latex, no figures; to appear in Phys. Stat. Sol. (b)