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Enhanced stability against spin torque noise in current perpendicular to the plane self-biased differential dual spin valves
Tran M., Wang L., Han G.C., Lew W.S.,
Published in Elsevier B.V.
2015
Volume: 374
   
Pages: 740 - 743
Abstract
We present a detailed study of spin-transfer torque induced noise in self-biased differential dual spin valves (DDSV) which could be potentially used as magnetic read-heads for hard-disk drives. Micromagnetics studies of DDSV were performed in all the major magnetic configurations experienced by read-heads and we show that in every case, self-biased DDSV provide a much stronger stability against spin-transfer torque noise than conventional spin valves. Provided are also insights on the influence of the dipolar interlayer coupling, shape anisotropy, exchange bias and relative orientation between the 2 free layers. Our results demonstrate the viability of DDSV read-heads for future hard disk drives generations. © 2014 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Magnetism and Magnetic Materials
PublisherData powered by TypesetElsevier B.V.
ISSN03048853
Open AccessNo