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

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© 2014 Elsevier BV. This is the post print version of the following article: Brandl, F. & Franke, K.J.A. & Lahtinen, T.H.E. & van Dijken, S. & Grundler, D. 2014. Spin waves in CoFeB on ferroelectric domains combining spin mechanics and magnonics. Solid State Communications. Volume 198. 13-17. ISSN 0038-1098 (printed). DOI: 10.1016/j.ssc.2013.12.019, which has been published in final form at http://www.sciencedirect.com/science/article/pii/S0038109813005966.
Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2014
Major/Subject
Mcode
Degree programme
Language
en
Pages
13-17
Series
Solid State Communications, Volume 198
Abstract
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.
Description
Keywords
spin waves, magnons, electric-field control
Other note
Citation
Brandl, F. & Franke, K.J.A. & Lahtinen, T.H.E. & van Dijken, S. & Grundler, D. 2014. Spin waves in CoFeB on ferroelectric domains combining spin mechanics and magnonics. Solid State Communications. Volume 198. 13-17. ISSN 0038-1098 (printed). DOI: 10.1016/j.ssc.2013.12.019.