Interfacial magnetism in manganite superlattices

Kalpataru Pradhan; Arno P. Kampf

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Interfacial magnetism in manganite superlattices

机译：锰超晶格中的界面磁

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We use a two-orbital double-exchange model including superexchange interactions, Jahn-Teller lattice distortions, and long-range Coulomb interactions to investigate the origin of magnetically disordered interfaces between ferromagnetic metallic (FM) and antiferromagnetic insulating (AFI) manganites in FM/AFI superlattices. The induced magnetic moment in the AFI layer varies nonmonotonically with increasing AFI layer width as seen in the experiment. We provide a framework for understanding this nonmonotonic behavior which has a one-to-one correspondence with the magnetization of the FM interface. The obtained insights provide a basis for improving the tunneling magnetoresistance in FM/AFI manganite superlattices by avoiding a magnetic dead layer in the FM manganite.

机译：我们使用双轨道双交换模型，包括超交换相互作用，Jahn-Teller晶格畸变和远距离库仑相互作用，以研究FM / AFI超晶格。如实验所示，随着AFI层宽度的增加，AFI层中的感应磁矩非单调变化。我们提供了一个框架来理解这种非单调行为，该行为与FM接口的磁化一一对应。所获得的见解为避免FM锰矿中的磁死层提供了改善FM / AFI锰超晶格中隧穿磁阻的基础。

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来源
《Physical review》 |2013年第11期|115136.1-115136.5|共5页
作者
Kalpataru Pradhan; Arno P. Kampf;
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作者单位

Center for Electronic Correlations and Magnetism, Theoretical Physics Ⅲ, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

Center for Electronic Correlations and Magnetism, Theoretical Physics Ⅲ, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

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正文语种 eng
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关键词
manganites; magnetic properties of interfaces (multilayers, superlattices, heterostructures); junction breakdown and tunneling devices (including resonance tunneling devices); magnetic memory using magnetic tunnel junctions;

机译：锰矿;界面的磁性（多层;超晶格;异质结构）;结击穿和隧穿装置（包括谐振隧穿装置）;使用磁隧道结的磁存储器;

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1. Binary Controls on Interfacial Magnetism in Manganite Heterostructures [J] . Chen Pingfan, Huang Zhen, Li Changjian, Advanced Functional Materials . 2018,第33期

机译：锰异质结构界面磁性的二元控制
2. APS -APS March Meeting 2017 - Event - Interfacial magnetism in manganite-based synthetic multiferroics [J] . S.G.E. te Velthuis, Q. Wang, Y. Liu, Bulletin of the American Physical Society . 2017,第4期

机译：APS -APS 2017年3月会议-活动-锰基合成多铁化合物的界面磁性
3. Interfacial Engineering of Ferromagnetism in Epitaxial Manganite/Ruthenate Superlattices via Interlayer Chemical Doping [J] . Lan Da, Chen Binbin, Qu Lili, ACS applied materials & interfaces . 2019,第10期

机译：间层间化学掺杂，外延锰矿/ Ruthenate超晶片中铁磁性界面工程
4. Interfacial magnetism in CaRuO_3/CaMnO_3 superlattices grown on(001)SrTiO_3 [C] . C. He, X. Zhai, V. V. Mehta Annual Conference on Magnetism Magnetic Materials . 2011

机译：Caruo_3 / Camno_3超晶片中的界面磁力在（001）SRTIO_3上生长
5. Magnetism and electron transport in magnetoresistive lanthanum calcium manganite [D] . Snyder, Gerald Jeffrey 1997

机译：磁阻镧钙锰矿中的磁性和电子传输
6. The Frustration-induced Ferroelectricity of a Manganite Tricolor Superlattice with Artificially Broken Symmetry [O] . Huanyu Pei, Shujin Guo, Lixia Ren, -1

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7. Interfacial Magnetism in Manganite Superlattices [O] . Kalpataru Pradhan, Arno P. Kampf 2014

机译：manganite超晶格中的界面磁性

Interfacial magnetism in manganite superlattices

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