GFMC, Departamento de Física Aplicada III, Universidad Complutense de Madrid, Campus Moncloa, E-28040, Madrid, Spain; Laboratorio de Heteroestructuras con aplicación en Spintronica, Unidad Asociada Consejo Superior de Investigaciones Científicas/Universidad Complutense Madrid, Sor Juana Inés de la Cruz, 3, E-28049, Madrid, Spain.
Adv Mater. 2014 Nov 26;26(44):7516-20. doi: 10.1002/adma.201402829. Epub 2014 Oct 18.
The magnetoresistance of La0.7Sr0.3MnO3/SrTiO3 superlattices with magnetic field rotating out-of-plane shows unexpected peaks for in-plane fields. Resistivity calculations with spin-orbit coupling reveal that orbital reconstruction at the manganite interface leads to a 2D ferromagnetic electron gas coupled antiparallel to the manganite "bulk". These orbital and magnetic reconstructions are supported by X-ray linear dichroism and ab initio calculations.
La0.7Sr0.3MnO3/SrTiO3 超晶格在外磁场中旋转时的磁电阻表现出出乎意料的面内磁场峰值。考虑自旋轨道耦合的电阻率计算表明，锰氧化物界面处的轨道重构导致与锰氧化物“体相”反平行耦合的 2D 铁磁电子气。这些轨道和磁重构得到了 X 射线线二色性和第一性原理计算的支持。
