SrCo6O11中类Ising自旋子晶格驱动的两级磁电阻效应
Two-Staged Magnetoresistance Driven by Ising-like Spin Sublattice in SrCo6O11
摘要：
在具有层状六方结构的SrCo_6O_（11）中发现了两个阶段的单轴磁阻效应。导电电子和局域伊辛自旋是在不同的亚晶格，但它们的相互渗透，使导电电子敏感地拿起磁化的阶梯场依赖性。阶梯场依赖性表明铁磁Ising自旋层之间存在两种竞争性层间相互作用，即，铁磁最近层相互作用和反铁磁次最近层相互作用。这种氧化物提供了一个独特的机会来研究传导电子和伊辛自旋之间的非平凡的相互作用，其耦合可以通过几特斯拉的磁场进行精细控制。
英文摘要：
A two-staged, uniaxial magnetoresistive effect has been discovered in SrCo6O11 having a layered hexagonal structure. Conduction electrons and localized Ising spins are in different sublattices but their interpenetration makes the conduction electrons sensitively pick up the stepwise field-dependence of magnetization. The stepwise field-dependence suggests two competitive interlayer interactions between ferromagnetic Ising-spin layers, i.e., a ferromagnetic nearest-layer interaction and an antiferromagnetic next-nearest-layer interaction. This oxide offers a unique opportunity to study nontrivial interplay between conduction electrons and Ising spins, the coupling of which can be finely controlled by a magnetic field of a few Tesla.
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。
