TY - JOUR
T1 - Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents
AU - Heinonen, Olle
AU - Jiang, Wanjun
AU - Somaily, Hamoud
AU - Te Velthuis, Suzanne G.E.
AU - Hoffmann, Axel
N1 - Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/3/7
Y1 - 2016/3/7
N2 - Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films [W. Jiang, Science 349, 283 (2015)SCIEAS0036-807510.1126/science.aaa1442]. Here, we demonstrate, using micromagnetic modeling, that such skyrmions can be generated by an inhomogeneous spin Hall torque in the presence of Dzyaloshinskii-Moriya interactions (DMIs). In the experimental Ta/Co20Fe60B20 thin films, the DMI is rather small; nevertheless, the skyrmion bubbles are stable, or at least metastable on observational time scales.
AB - Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films [W. Jiang, Science 349, 283 (2015)SCIEAS0036-807510.1126/science.aaa1442]. Here, we demonstrate, using micromagnetic modeling, that such skyrmions can be generated by an inhomogeneous spin Hall torque in the presence of Dzyaloshinskii-Moriya interactions (DMIs). In the experimental Ta/Co20Fe60B20 thin films, the DMI is rather small; nevertheless, the skyrmion bubbles are stable, or at least metastable on observational time scales.
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U2 - 10.1103/PhysRevB.93.094407
DO - 10.1103/PhysRevB.93.094407
M3 - Article
AN - SCOPUS:84960941095
SN - 2469-9950
VL - 93
JO - Physical Review B
JF - Physical Review B
IS - 9
M1 - 094407
ER -