畴壁涨落在变磁体非费米液体行为中的作用
Role of domain wall fluctuations in non-Fermi liquid behavior of metamagnets
摘要：
本文研究了三维变磁体在变磁体相变点附近的电阻率温度关系，当磁结构倾向于分裂成具有高磁化强度和低磁化强度的区域时。结果表明，在弱钉扎情况下，畴壁的自旋弛豫时间远大于体自旋涨落的弛豫时间。这打开了一个温度范围，其中电阻率温度依赖性由畴壁波动对导电电子的散射决定。我们表明，它导致电阻率的准线性低温依赖性。
英文摘要：
We study resistivity temperature dependence of a three dimensional metamagnet near the metamagnet phase transition point in the case when magnetic structure tends to split into regions with high and low magnetization. We show that in the case of weak pinning the spin relaxation time of domain wall is much larger than that of the volume spin fluctuations. This opens a temperature range where resistivity temperature dependence is determined by scattering of conducting electrons by the domain wall fluctuations. We show that it leads to quasi-linear low temperature dependence of resistivity.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
