Thermoelectrically Controlled Spin-Switch
2010 (English)In: IEEE transactions on magnetics, ISSN 0018-9464, E-ISSN 1941-0069, Vol. 46, no 6, 2140-2143 p.Article in journal (Refereed) Published
The search for novel spintronic devices brings about new ways to control switching in magnetic thin-films. In this work we experimentally demonstrate a device based on thermoelectrically controlled exchange coupling. The read out signal from a giant magnetoresistance element is controlled by exchange coupling through a weakly ferromagnetic Ni-Cu alloy. This exchange coupling is shown to vary strongly with changes in temperature, and both internal Joule heating and external heating is used to demonstrate magnetic switching. The device shows no degradation upon thermal cycling. Ways to further optimize the device performance are discussed. Our experimental results show a new way to thermoelectrically control magnetic switching in multilayers.
Place, publisher, year, edition, pages
2010. Vol. 46, no 6, 2140-2143 p.
Joule heating, magnetic thin-film switches, Ni-Cu alloys
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-27589DOI: 10.1109/TMAG.2010.2041053ISI: 000278037800224ScopusID: 2-s2.0-77952835990OAI: oai:DiVA.org:kth-27589DiVA: diva2:377439
QC 201012142010-12-142010-12-132012-03-13Bibliographically approved