Volume 118, Number 3, May 2017
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||14 July 2017|
Thermal switching of indirect interlayer exchange in magnetic multilayers
1 Royal Institute of Technology, Nanostructure Physics - Roslagstullsbacken 21, 10691 Stockholm, Sweden
2 Institute of Magnetism, National Academy of Sciences of Ukraine - 36-b Vernadsky Ave., 03680 Kyiv, Ukraine
Received: 7 June 2017
Accepted: 26 June 2017
We propose a magnetic multilayer layout, in which the indirect exchange coupling (IEC also known as RKKY) can be switched on and off by a slight change in temperature. We demonstrate such on/off IEC switching in a Fe/Cr/FeCr-based system and obtain thermal switching widths as small as 10–20 K, essentially in any desired temperature range, including at or just above room temperature. These results add a new dimension of tunable thermal control to IEC in magnetic nanostructures, highly technological in terms of available materials and operating physical regimes.
PACS: 75.70.-i – Magnetic properties of thin films, surfaces, and interfaces / 75.30.Fv – Spin-density waves / 75.20.En – Metals and alloys
© EPLA, 2017
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