Title :
Femtosecond magneto-optics of FePt nanocrystals for Heat Assisted Magnetic Recording
Author :
Bigot, J.-Y. ; Vomir, M. ; Kim, Jung-Ho ; Mosendz, O. ; Jain, Sonal ; Weller, Dieter
Author_Institution :
IPCMS, Univ. de Strasbourg, Strasbourg, France
Abstract :
We report about the magnetization dynamics in L10 FePt discs, designed for Heat Assisted Magnetic Recording. We also determine the different nonlinear behaviors of the coercive field and saturation magnetization with increasing laser pulse energy.
Keywords :
coercive force; iron alloys; magneto-optical recording; nanomagnetics; nanostructured materials; platinum alloys; FePt; FePt discs; FePt nanocrystals; coercive field; femtosecond magnetooptics; heat assisted magnetic recording; laser pulse energy; magnetization dynamics; nonlinear behaviors; saturation magnetization; Delays; Heating; Laser excitation; Magnetic recording; Magnetization; Nanoparticles; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
