%0 Book Section %1 statphys23_0455 %A Cerruti, B. %A Zapperi, S. %A Vives, E. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K barkhausen hysteresis magnetism noise statphys23 topic-3 %T Zigzag domain-wall dynamics in ferromagnetic thin films %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=455 %X One of the still open questions in the physics of magnetic systems is the comprehension of the hysteretic behavior of ferromagnetic thin films. Experiments on two dimensional specimens highlight different features from bulk systems, due to the greater complexity of domain structure in two dimensions. In this contribution we analyze the effects of the long range dipolar interactions on the domain walls dynamics. We present a model for the study of a single zigzag domain wall motion in a ferromagnetic system with in-plane magnetization, driven by an external magnetic field, and find that such a model is suitable for the interpretation of the dynamic hysteresis (1) and Barkhausen noise (2) experiments on two dimensional specimens. Moreover, the magnetization-driven regime is analyzed, in order to investigate the influence of the driving mechanism on the hysteretic response of the system. (1) B. Cerruti and S. Zapperi, Phys. Rev. B 75, 064416 (2007) (2) B. Cerruti and S. Zapperi, J. Stat. Mech. (2006) P08020

@incollection{statphys23_0455, abstract = {One of the still open questions in the physics of magnetic systems is the comprehension of the hysteretic behavior of ferromagnetic thin films. Experiments on two dimensional specimens highlight different features from bulk systems, due to the greater complexity of domain structure in two dimensions. In this contribution we analyze the effects of the long range dipolar interactions on the domain walls dynamics. We present a model for the study of a single zigzag domain wall motion in a ferromagnetic system with in-plane magnetization, driven by an external magnetic field, and find that such a model is suitable for the interpretation of the dynamic hysteresis (1) and Barkhausen noise (2) experiments on two dimensional specimens. Moreover, the magnetization-driven regime is analyzed, in order to investigate the influence of the driving mechanism on the hysteretic response of the system. (1) B. Cerruti and S. Zapperi, Phys. Rev. B 75, 064416 (2007) (2) B. Cerruti and S. Zapperi, J. Stat. Mech. (2006) P08020}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Cerruti, B. and Zapperi, S. and Vives, E.}, biburl = {https://www.bibsonomy.org/bibtex/2db300601b0681df2b239482317d59c06/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {9be5d9d98b5dc24471e3dbbfb1945e77}, intrahash = {db300601b0681df2b239482317d59c06}, keywords = {barkhausen hysteresis magnetism noise statphys23 topic-3}, month = {9-13 July}, timestamp = {2007-06-20T10:16:20.000+0200}, title = {Zigzag domain-wall dynamics in ferromagnetic thin films}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=455}, year = 2007 }