Field- and temperature-modulated spin diode effect in a GMR nanowire with dipolar coupling

Piotr Ogrodnik , Francesco Antonio Vetrò , Marek Frankowski , Jakub Chȩciński , Tomasz Stobiecki , Józef Barnaś , Jean-Philippe Ansermet

Abstract

The magnetization dynamics of single Co/Cu/Co spin valves, embedded in electrodeposited nanowires of 30 nm avarage diameter, was observed using the spin-diode effect. The electrically-detected magnetic resonances were compared when using modulation of either the magnetic field or a laser irradiation. The effect of temperature modulation was accounted for by introducing the temperature dependence of the saturation magnetization and anisotropy, as well as thermal spin-transfer torque (TSTT). The predictions of the model are compared with experimental data. Two forms of modulation give rise to qualitative differences in the spectra that are accounted for by the model only if both temperature-modulated magnetization and TSTT are introduced in the model. On the contrary, the temperature modulation of the magnetic anisotropy has a smaller contribution.

Author Piotr Ogrodnik (FP / SRD)
Piotr Ogrodnik,,
- Structural Research Division
, Francesco Antonio Vetrò - [Swiss Federal Institute of Technology, Lausanne]
Francesco Antonio Vetrò,,
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, Marek Frankowski - [AGH University of Science and Technology (AGH)]
Marek Frankowski,,
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- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
, Jakub Chȩciński - [AGH University of Science and Technology (AGH)]
Jakub Chȩciński,,
-
- Akademia Górniczo-Hutnicza
, Tomasz Stobiecki - [AGH University of Science and Technology (AGH)]
Tomasz Stobiecki,,
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- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
, Józef Barnaś - [Adam Mickiewicz University (UAM)]
Józef Barnaś,,
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- Uniwersytet im. Adama Mickiewicza w Poznaniu
, Jean-Philippe Ansermet - [Swiss Federal Institute of Technology, Lausanne]
Jean-Philippe Ansermet,,
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Journal seriesJournal of Physics D: Applied Physics, [Journal of Physics D: Applied Physics], ISSN 0022-3727, e-ISSN 1361-6463
Issue year2019
Vol52
No6
Article number065002
ASJC Classification2504 Electronic, Optical and Magnetic Materials; 2508 Surfaces, Coatings and Films; 3102 Acoustics and Ultrasonics; 3104 Condensed Matter Physics
DOIDOI:10.1088/1361-6463/aaf093
Languageen angielski
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 23-06-2020, ArticleFromJournal
Publication indicators Scopus Citations = 3; WoS Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.044; WoS Impact Factor: 2018 = 2.829 (2) - 2018=2.868 (5)
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