Observation of thermally activated domain wall transformations
| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-54202 |
| Author: | Laufenberg, Markus; Backes, Dirk; Bührer, Wolfgang; Bedau, Daniel; Kläui, Mathias; Rüdiger, Ulrich; Vaz, Carlos A. F.; Bland, J. Anthony C.; Heyderman, Laura J.; Nolting, Friethjof; Cherifi, Salia; Locatelli, Andrea; Belkhou, Rachid; Heun, Stefan; Bauer, Ernst |
| Year of publication: | 2006 |
| Published in: | Applied Physics letters ; 88 (2006). - 52507 |
| DOI (citable link): | https://dx.doi.org/10.1063/1.2168677 |
| Summary: |
The spin structure of head-to-head domain walls in Ni80Fe20 structures is studied using high-resolution photoemission electron microscopy. The quantitative phase diagram is extracted from these measurements and found to exhibit two phase boundaries between vortex and transverse domain walls. The results are compared with available theoretical predictions and micromagnetic simulations and differences to the experiment are explained, taking into account thermal excitations. Temperature-dependent measurements show a thermally activated transformation of transverse to vortex domain walls in 7 nm thick and 730 nm wide structures at a transition temperature between 260°C and 310°C, which corresponds to a nucleation barrier height for a vortex wall between 6.7x10 −21 J and 8.0x10 −21 J.
|
| Subject (DDC): | 530 Physics |
| Link to License: | Attribution-NonCommercial-NoDerivs 2.0 Generic |
| Bibliography of Konstanz: | Yes |
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LAUFENBERG, Markus, Dirk BACKES, Wolfgang BÜHRER, Daniel BEDAU, Mathias KLÄUI, Ulrich RÜDIGER, Carlos A. F. VAZ, J. Anthony C. BLAND, Laura J. HEYDERMAN, Friethjof NOLTING, Salia CHERIFI, Andrea LOCATELLI, Rachid BELKHOU, Stefan HEUN, Ernst BAUER, 2006. Observation of thermally activated domain wall transformations. In: Applied Physics letters. 88, 52507. Available under: doi: 10.1063/1.2168677
@article{Laufenberg2006Obser-5129, title={Observation of thermally activated domain wall transformations}, year={2006}, doi={10.1063/1.2168677}, volume={88}, journal={Applied Physics letters}, author={Laufenberg, Markus and Backes, Dirk and Bührer, Wolfgang and Bedau, Daniel and Kläui, Mathias and Rüdiger, Ulrich and Vaz, Carlos A. F. and Bland, J. Anthony C. and Heyderman, Laura J. and Nolting, Friethjof and Cherifi, Salia and Locatelli, Andrea and Belkhou, Rachid and Heun, Stefan and Bauer, Ernst}, note={Article Number: 52507} }
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