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4 November 2016 Torque-mixing magnetic resonance spectroscopy (Conference Presentation)
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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Proceedings Volume 9931, Spintronics IX; 993110 (2016) https://doi.org/10.1117/12.2239173
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
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).
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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, and Mark R. Freeman "Torque-mixing magnetic resonance spectroscopy (Conference Presentation)", Proc. SPIE 9931, Spintronics IX, 993110 (4 November 2016); https://doi.org/10.1117/12.2239173
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KEYWORDS
Magnetic resonance imaging
Magnetic sensors
Magnetism
Electromagnetism
Error control coding
Nanotechnology
Sensors
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