Asymmetric Hysteresis of Neel Caps in Flux-Closure Magnetic Dots

被引：6

作者：

Fruchart, Olivier ^{[1
,2
]}

Rougemaille, Nicolas ^{[1
,2
]}

Bendounan, Azzedine ^{[3
,4
]}

Toussaint, Jean-Christophe ^{[1
,2
]}

Belkhou, Rachid ^{[3
,4
]}

Tian, Yuan ^{[1
,2
]}

Yu, Hyeonseung ^{[1
,2
]}

Cheynis, Fabien ^{[1
,2
]}

Masseboeuf, Aurelien ^{[5
]}

Bayle-Guillemaud, Pascale ^{[5
]}

Marty, Alain ^{[5
]}

机构：

[1] CNRS, Inst Neel, F-38042 Grenoble, France

[2] Univ Grenoble 1, F-38042 Grenoble, France

[3] Synchrotron SOLEIL, Gif Sur Yvette, France

[4] ELETTRA Sincrotrone, I-34149 Basovizza Trieste, Italy

[5] CEA Grenoble, INAC SP2M, F-38054 Grenoble, France

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 06期

关键词：

Magnetic domain; magnetic domain wall; magnetization reversal; micromagnetic simulation; nanomagnetism; STRAY-FIELD-FREE;

D O I：

10.1109/TMAG.2010.2043222

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Neel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state. In most cases these magnetic processes are symmetric in field, as expected. However, some dots show pronounced asymmetric behaviors. Micromagnetic simulations suggest that the geometrical features (and their asymmetry) of the dots strongly affect the switching mechanism of the Neel caps.

引用

页码：1552 / 1555

页数：4

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