Investigation of the Tunability of the Spin Configuration Inside Exchange Coupled Springs of Hard/Soft Magnets
2014 (English)In: IEEE transactions on magnetics, ISSN 0018-9464, E-ISSN 1941-0069, Vol. 50, no 6, 2004906- p.Article in journal (Refereed) Published
Magnetic multilayer (ML) structures comprising a perpendicular magnetic anisotropy (PMA) layer coupled to an in-plane magnetic anisotropy (IMA) layer are promising materials for zero/low field operating spin-torque oscillators and bit patterned recording media. The magnetization tilt angle can be easily tuned by varying the IMA layer thickness due to the competition between PMA and IMA layers. To explore the underlying magnetization reversal mechanism and to further understand the control of tilt angle and uniformity of the magnetization, the IMA (NiFe, Co, and CoFeB)/PMA (Co/Pd MLs) exchange spring systems are systematically studied. Experimental data obtained from magnetometry show good agreement with 1-D micromagnetic simulations, allowing us to design tunable exchange coupled spring as a function of IMA thickness.
Place, publisher, year, edition, pages
2014. Vol. 50, no 6, 2004906- p.
Competing magnetic anisotropy, exchange spring, tilted anisotropy materials, tunable magnetization
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-155813DOI: 10.1109/TMAG.2014.2299976ISI: 000343033900005ScopusID: 2-s2.0-84957554152OAI: oai:DiVA.org:kth-155813DiVA: diva2:763023
1st International Symposium on Frontiers in Materials Science (IS FMS), NOV 17-19, 2013, Hanoi, Vietnam
QC 201411132014-11-132014-11-132016-08-26Bibliographically approved