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IEEE Magnetics Society
Santa Clara Valley Chapter
Meeting Presentation Summary


Thursday, January 31th, 2013
Not the usual third Tuesday of this month

Western Digital, 1710 Automation Parkway, San Jose, CA
Directions and Map
Cookies, Conversation & Pizza too at 7:00 P.M.
Presentation at 7:30 P.M.

Light–induced magnetization reversal of high-anisotropy TbCo alloy films

Prof. Stéphane Mangin
Center for Magnetic Recording Research at UCSD


Magnetization reversal using circularly polarized light provides a way to control magnetization without any external magnetic field and has the potential to revolutionize magnetic data storage. However, in order to reach ultra-high density data storage, high anisotropy media providing thermal stability are needed. Here, we evidence all-optical magnetization switching for different TbxCo1-x ferrimagnetic alloy compositions using fs- and ps- laser pulses and demonstrate all-optical switching for films with anisotropy fields reaching 6 T corresponding to anisotropy constants of 3x106 ergs/cm3. Optical magnetization switching is observed only for alloy compositions where the compensation temperature can be reached through sample heating [1] .
[1] S. Alebrand et al., Appl. Phys. Lett. 101, 162408 (2012)

Copy Of Presentation


Photo of Prof. Stéphane Mangin Stéphane Mangin is a visiting Professor at the Center for Magnetic Recording Research at UCSD. His visit is supported by an European Union program Marie Curie Action: "International Outgoing Fellowships for Career Development". Stephane Mangin is professor at the Université de Lorraine and the group leader of the Nanomagnetism & spintronic team at the Institut Jean Lamour in Nancy. He is co-author of over 75 reviewed publications and has delivered more than 35 invited talk



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