Spin waves in CoFeB on ferroelectric domains combining spin mechanics and magnonics

Spin dynamics controlled by magnetoelastic coupling and applied electric fields might play a vital role in future developments of magnonics, i.e., the exploitation of spin waves for the transmission and processing of information. We have performed broadband spin-wave spectroscopy on a magnetostrictive CoFeB alloy grown on a ferroelectric BaTiO3 substrate causing elastic strain with a quasi-periodic modulation. We find characteristic eigenfrequencies and spin-wave modes with large group velocities and small damping. These results suggest bright perspectives for electric-field control of reprogrammable magnonics.


Published in:
Solid State Communications, 198, 13-17
Year:
2014
ISSN:
0038-1098
Keywords:
Laboratories:




 Record created 2015-07-07, last modified 2018-09-13

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