发帖
雷达卡
摘要翻译：
半掺杂锰氧化物中电导的场诱导开关是由亚稳性、非均匀高场态和阳离子无序共同控制的。我们在一个适用于锰氧化物的无序强耦合模型上，用实空间蒙特卡罗方法研究了这个非平衡问题。我们再现了开关场随平均离子半径r_A和阳离子无序度Sigma_a的变化，并证明了Landau自由能景观中几个相的接近是如何引起实验特征的。我们对现场熔化状态的预测与越来越多的实验证据是一致的。
---
英文标题：
《Conductance Switching and Inhomogeneous Field Melting in the Charge
Ordered Manganites》
---
作者：
Anamitra Mukherjee, Kalpataru Pradhan and Pinaki Majumdar
---
最新提交年份：
2009
---
分类信息：
一级分类：Physics 物理学
二级分类：Strongly Correlated Electrons 强关联电子
分类描述：Quantum magnetism, non-Fermi liquids, spin liquids, quantum criticality, charge density waves, metal-insulator transitions
量子磁学，非费米液体，自旋液体，量子临界性，电荷密度波，金属-绝缘体跃迁
--
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
--
---
英文摘要：
The field induced switching of conductance in the charge ordered half-doped manganites is controlled by the combination of metastability, an inhomogeneous high field state, and cation disorder. We study this non-equilibrium problem via real space Monte Carlo on a disordered strong coupling model appropriate to the manganites. We reproduce the variation of the switching fields with the mean ionic radius r_A and cation disorder \sigma_A, and demonstrate how the experimental features arise from the proximity of several phases in the Landau free energy landscape. Our prediction for the field melted state is consistent with a growing body of experimental evidence.
---
PDF链接：
https://arxiv.org/pdf/801.2054
京公网安备 11010802022788号
