Large spin Hall effect in an amorphous binary alloy

Fritz K, Wimmer S, Ebert H, Meinert M (2018)
PHYSICAL REVIEW B 98(9): 094433.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We investigate the spin Hall effect of W-Hf thin films, which exhibit a phase transition from a segregated phase mixture to an amorphous alloy below 70% W. The spin Hall angle was determined with a planar harmonic Hall voltage technique. Due to the accompanying jump in resistivity, the spin Hall angle shows a pronounced maximum at the composition of the phase transition. The spin Hall conductivity does, however, reduce from W to Hf with a weak discontinuity across the phase transition. The maximum spin Hall angle of theta(SH) = -0.20 is obtained for amorphous W0.7Hf (0.3). A detailed comparison with spin Hall conductivities calculated from first principles for hcp, fcc, and bcc solid solutions provides valuable insight into the alloying physics of this binary system.
Erscheinungsjahr
2018
Zeitschriftentitel
PHYSICAL REVIEW B
Band
98
Ausgabe
9
Art.-Nr.
094433
ISSN
2469-9950
eISSN
2469-9969
Page URI
https://pub.uni-bielefeld.de/record/2931990

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Fritz K, Wimmer S, Ebert H, Meinert M. Large spin Hall effect in an amorphous binary alloy. PHYSICAL REVIEW B. 2018;98(9): 094433.
Fritz, K., Wimmer, S., Ebert, H., & Meinert, M. (2018). Large spin Hall effect in an amorphous binary alloy. PHYSICAL REVIEW B, 98(9), 094433. doi:10.1103/PhysRevB.98.094433
Fritz, K., Wimmer, S., Ebert, H., and Meinert, M. (2018). Large spin Hall effect in an amorphous binary alloy. PHYSICAL REVIEW B 98:094433.
Fritz, K., et al., 2018. Large spin Hall effect in an amorphous binary alloy. PHYSICAL REVIEW B, 98(9): 094433.
K. Fritz, et al., “Large spin Hall effect in an amorphous binary alloy”, PHYSICAL REVIEW B, vol. 98, 2018, : 094433.
Fritz, K., Wimmer, S., Ebert, H., Meinert, M.: Large spin Hall effect in an amorphous binary alloy. PHYSICAL REVIEW B. 98, : 094433 (2018).
Fritz, Katharina, Wimmer, Sebastian, Ebert, Hubert, and Meinert, Markus. “Large spin Hall effect in an amorphous binary alloy”. PHYSICAL REVIEW B 98.9 (2018): 094433.