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Torque-mixing magnetic resonance spectroscopy (Conference Presentation)
Author(s): Joseph Losby; Fatemeh Fani Sani; Dylan T. Grandmont; Zhu Diao; Miro Belov; Jacob A. Burgess; Shawn R. Compton; Wayne K. Hiebert; Doug Vick; Kaveh Mohammad; Elham Salimi; Gregory E. Bridges; Douglas J. Thomson; Mark R. Freeman
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Paper Abstract

An optomechanical platform for magnetic resonance spectroscopy will be presented. The method relies on frequency mixing of orthogonal RF fields to yield a torque amplitude (arising from the transverse component of a precessing dipole moment, in analogy to magnetic resonance detection by electromagnetic induction) on a miniaturized resonant mechanical torsion sensor. In contrast to induction, the method is fully broadband and allows for simultaneous observation of the equilibrium net magnetic moment alongside the associated magnetization dynamics. To illustrate the method, comprehensive electron spin resonance spectra of a mesoscopic, single-crystal YIG disk at room temperature will be presented, along with situations where torque spectroscopy can offer complimentary information to existing magnetic resonance detection techniques. The authors are very grateful for support from NSERC, CRC, AITF, and NINT. Reference: Science 350, 798 (2015).

Paper Details

Date Published: 4 November 2016
PDF: 1 pages
Proc. SPIE 9931, Spintronics IX, 993110 (4 November 2016); doi: 10.1117/12.2239173
Show Author Affiliations
Joseph Losby, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Fatemeh Fani Sani, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Dylan T. Grandmont, Univ. of Alberta (Canada)
Zhu Diao, The Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Miro Belov, National Institute for Nanotechnology (Canada)
Jacob A. Burgess, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Shawn R. Compton, The Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Wayne K. Hiebert, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Doug Vick, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)
Kaveh Mohammad, Univ. of Manitoba (Canada)
Elham Salimi, Univ. of Manitoba (Canada)
Gregory E. Bridges, Univ. of Manitoba (Canada)
Douglas J. Thomson, Univ. of Manitoba (Canada)
Mark R. Freeman, Univ. of Alberta (Canada)
National Institute for Nanotechnology (Canada)


Published in SPIE Proceedings Vol. 9931:
Spintronics IX
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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