Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate
Shan J, Singh AV, Liang L, Cornelissen LJ, Galazka Z, Gupta A, van Wees BJ, Kuschel T (2018)
Applied Physics Letters 113(16): 162403.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Shan, J.;
Singh, A. V.;
Liang, L.;
Cornelissen, L. J.;
Galazka, Z.;
Gupta, A.;
van Wees, B. J.;
Kuschel, TimoUniBi 
Abstract / Bemerkung
We investigate magnon spin transport in epitaxial nickel ferrite (NiFe2O4, NFO) films grown on magnesium gallate spinel (MgGa2O4, MGO) substrates, which have a lattice mismatch with NFO as small as 0.78%, resulting in the reduction of antiphase boundary defects and thus in improved magnetic properties in the NFO films. In nonlocal transport experiments where platinum (Pt) strips function as magnon spin injectors and detectors, enhanced signals are observed for both electrically and thermally excited magnons, and the magnon relaxation length (lambda_m) of NFO is found to be around 2.5 microns at room temperature. Moreover, at both room and low temperatures, we present distinct features from the nonlocal spin Seebeck signals which arise from magnon-polaron formation. Our results demonstrate excellent magnon transport properties (magnon spin conductivity, lambda_m, and spin mixing conductance at the Pt/NFO interface) of NFO films grown on a lattice-matched substrate which are comparable with those of yttrium iron garnet.
Erscheinungsjahr
2018
Zeitschriftentitel
Applied Physics Letters
Band
113
Ausgabe
16
Art.-Nr.
162403
ISSN
0003-6951
eISSN
1077-3118
Page URI
https://pub.uni-bielefeld.de/record/2931602
Zitieren
Shan J, Singh AV, Liang L, et al. Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate. Applied Physics Letters. 2018;113(16): 162403.
Shan, J., Singh, A. V., Liang, L., Cornelissen, L. J., Galazka, Z., Gupta, A., van Wees, B. J., et al. (2018). Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate. Applied Physics Letters, 113(16), 162403. https://doi.org/10.1063/1.5049749
Shan, J., Singh, A. V., Liang, L., Cornelissen, L. J., Galazka, Z., Gupta, A., van Wees, B. J., and Kuschel, Timo. 2018. “Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate”. Applied Physics Letters 113 (16): 162403.
Shan, J., Singh, A. V., Liang, L., Cornelissen, L. J., Galazka, Z., Gupta, A., van Wees, B. J., and Kuschel, T. (2018). Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate. Applied Physics Letters 113:162403.
Shan, J., et al., 2018. Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate. Applied Physics Letters, 113(16): 162403.
J. Shan, et al., “Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate”, Applied Physics Letters, vol. 113, 2018, : 162403.
Shan, J., Singh, A.V., Liang, L., Cornelissen, L.J., Galazka, Z., Gupta, A., van Wees, B.J., Kuschel, T.: Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate. Applied Physics Letters. 113, : 162403 (2018).
Shan, J., Singh, A. V., Liang, L., Cornelissen, L. J., Galazka, Z., Gupta, A., van Wees, B. J., and Kuschel, Timo. “Enhanced magnon spin transport in NiFe2O4 thin films on a lattice-matched substrate”. Applied Physics Letters 113.16 (2018): 162403.
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