Dislocation reactions and junctions in MgO

Philippe Carrez; Patrick Cordier; Benoit Devincre; Ladislas P. Kubin

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Dislocation reactions and junctions in MgO

机译：MgO中的位错反应和连接

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Deformation processes in MgO single crystals are simulated at the mesoscopic scale using 3-D dislocation dynamics simulations. Our goal is to understand the strong hardening properties of this material through interactions and reactions between dislocations gliding in non-coplanar slip systems. This study focuses on interactions between dislocations of the 1/2 < 110 >{110} slip systems. The systematic modeling of dislocation intersections shows that only sessile "Lomer-like" junctions are energetically favorable which is consistent with previous observations.

机译：使用3-D位错动力学模拟，以介观尺度模拟MgO单晶中的变形过程。我们的目标是通过在非共面滑动系统中滑动的位错之间的相互作用和反应来了解这种材料的强硬化性能。这项研究的重点是1/2 <110> {110}滑移系统的位错之间的相互作用。错位相交的系统建模表明，只有无柄的“ Lomer样”连接在能量上是有利的，这与以前的观察一致。

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来源
《Materials Science and Engineering. A, Structural Materials》 |2005年第7期|p.325-328|共4页
作者
Philippe Carrez; Patrick Cordier; Benoit Devincre; Ladislas P. Kubin;
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作者单位

Laboratoire de Structure et Proprietes de l'Etat Solide, UMR CNRS 8008, Universite de Lille 1, 59655 Villeneuve d'Ascq Cedex, France;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
MgO single crystal; dislocation dynamics simulations; dislocations junctions;

机译：MgO单晶;位错动力学模拟;位错结;

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2. Influence of misfit dislocations on the magnetoresistance of MgO-based epitaxial magnetic tunnel junctions [J] . F. Bonell, rnS. Andrieu, rnC. Tiusan, Physical review . 2010,第9期

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3. Implementation of annihilation and junction reactions in vector density-based continuum dislocation dynamics [J] . Modelling and simulation in materials science and engineering . 2020,第4期

机译：基于载体密度的连续脱位动态的湮灭和结反应的实施
4. Magneto-optical properties of Ni-MgO and Co-MgO nanocomposite films obtained by partial reduction reactions [C] . J.A.Smith, P.Limthongkul, L.Hartsukyer, Symposium on Magnetic Ultrathin Films,Multilayers and Surface --1997 March 31-April 4,1997, San Francisco, California, U.S.A . 1997

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5. Perpendicular Magnetic Tunnel Junctions with MgO Tunnel Barrier [D] . Almasi, Hamid. 2017

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6. Effect of MgO Underlying Layer on the Growth of GaOx Tunnel Barrier in Epitaxial Fe/GaOx/(MgO)/Fe Magnetic Tunnel Junction Structure [O] . Sai Krishna Narayananellore, Naoki Doko, Norihiro Matsuo, 2017

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机译：通过插入MgO势垒来抑制Co2MnSi / MgO / n-GaAs和CoFe / MgO / n-GaAs结中的面内隧道各向异性磁阻效应

Dislocation reactions and junctions in MgO

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