Crossed-ratchet effects and domain wall geometrical pinning

V. I. Marconi; A. B. Kolton; J. A. Capitan; J. A. Cuesta; A. Perez-Junquera; M. Velez; J. I. Martin; J. M. R. Parrondo

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Crossed-ratchet effects and domain wall geometrical pinning

机译：交叉棘轮效应和畴壁几何固定

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The motion of a domain wall in a two-dimensional medium is studied by taking into account the internal elastic degrees of freedom of the wall and geometrical pinning produced by both holes and sample boundaries. This study is used to analyze the geometrical conditions needed for optimizing crossed-ratchet effects in periodic rectangular arrays of asymmetric holes, recently observed experimentally in patterned ferromagnetic films. Exact calculation as a function of the geometry of the sample and numerical simulations have been used to obtain the anisotropic critical fields for depinning flat and kinked walls in rectangular arrays of triangles. The aim is to show with a generic elastic model for interfaces how to build a rectifier able to display crossed-ratchet effects or effective potential landscapes for controlling the motion of interfaces or invasion fronts.

机译：通过考虑壁的内部弹性自由度以及由孔和样品边界产生的几何钉扎，研究了二维介质中畴壁的运动。这项研究用于分析在不对称孔的周期性矩形阵列中优化交叉棘轮效应所需的几何条件，最近在图案化铁磁膜中进行了实验观察。根据样品几何形状的精确计算和数值模拟已用于获得各向异性临界场，以将三角形矩形阵列中的平坦壁和扭结壁固定。目的是通过接口的通用弹性模型显示如何构建能够显示交叉棘轮效应或有效势态的整流器，以控制接口或入侵前沿的运动。

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来源
《Physical review》 |2011年第21期|p.214403.1-214403.13|共13页
作者
V. I. Marconi; A. B. Kolton; J. A. Capitan; J. A. Cuesta; A. Perez-Junquera; M. Velez; J. I. Martin; J. M. R. Parrondo;
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作者单位

Facultad de Matemdtica, Astronomia y Fisica, Universidad National de Cordoba and IFEG-CONICET, X5000HUA Cordoba, Argentina;

CONICET, Centro Atomico Bariloche, 8400 S.C. de Bariloche, Argentina;

Departamento de Matemdticas and GISC, Universidad Carlos III de Madrid, ES-2891J Leganes, Spain;

Departamento de Matemdticas and GISC, Universidad Carlos III de Madrid, ES-2891J Leganes, Spain;

Departamento de Fisica, Universidad de Oviedo CINN, ES-33007 Oviedo, Spain;

Departamento de Fisica, Universidad de Oviedo CINN, ES-33007 Oviedo, Spain;

Departamento de Fisica, Universidad de Oviedo CINN, ES-33007 Oviedo, Spain;

Departamento de Fisica Atomica, Molecular y Nuclear and GISC, Universidad Complutense de Madrid, ES-28040 Madrid, Spain;

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正文语种 eng
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dynamic critical phenomena; domain walls and domain structure;

机译：动态临界现象;畴壁和畴结构;

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1. Crossed-Ratchet Effects for Magnetic Domain Wall Motion [J] . A. Perez-Junquera, V. I. Marconi, A. B. Kolton, Physical review letters . 2008,第3期

机译：磁畴壁运动的交叉棘轮效应
2. Thermal stability of the geometrically constrained magnetic wall and its effect on a domain-wall spin valve [J] . Sasaki M. Journal of Applied Physics . 2012,第8期

机译：几何约束磁壁的热稳定性及其对畴壁自旋阀的影响
3. Thermal stability of the geometrically constrained magnetic wall and its effect on a domain-wall spin valve [J] . M. Sasaki, K. Matsushita, J. Sato, Journal of Applied Physics . 2012,第8期

机译：几何约束磁壁的热稳定性及其对畴壁自旋阀的影响
4. (07D309) Geometric dependence of static and kinetic pinning of domain walls on ferromagnetic nanowires [C] . Sung-Min Ahn, Kyoung-Woong Moon, Dong-Hyun Kim Annual Conference on Magnetism and Magnetic Materials . 2012

机译：（07D309）结构型纳米线上畴壁的静态和动力学钉扎的几何依赖性
5. Transport and spin-pseudospin domain walls in integer quantum Hall systems. [D] . Mitra, Aditi. 2002

机译：整数量子霍尔系统中的输运和自旋假旋畴壁。
6. Geometrically pinned magnetic domain wall for multi-bit per cell storage memory [O] . M. Al Bahri, R. Sbiaa -1

机译：几何固定的磁畴壁用于每个单元存储存储器多位
7. Crossed-ratchet effects and domain wall geometrical pinning [O] . Marconi, V. I., Capitán, J. A., Cuesta, J. A., 2011

机译：交叉棘轮效应和畴壁几何固定

Crossed-ratchet effects and domain wall geometrical pinning

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