Magnonics
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Magnon spintronics or magnonics − magnetic analogue to photonics − is emerging as a promising post-CMOS (complementary metal-oxide semiconductor) information processing technology where magnons (quanta of spin waves) carry the information instead of charge. We focus on the control of such magnetization dynamics for spintronic and microwave devices. We are primarily interested in ultra-thin magnetic films including multilayers, novel interfaces and patterned nanostructures in order to explore emerging phenomena such as inverse spin Hall effect, spin orbit torque, spin pumping etc. For more information, please check a review on this subject by Chumak et al. (click here).
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Microwave magnetics
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There is a growing civilian and military demand in RF based systems for effective and new ways of utilizing the increasingly crowded electromagnetic spectrum. Examples of such RF systems include smartphones to radars. Microwave magnetics research involve in the development of suitable materials for RF applications. Magnetic ferrites are well known for their extraordinary RF performance in a wide frequency range. However, requirement of a bias field for activating the passive RF devices make them bulky and therefore, signal processing is executed off the chip away from the active components. Certain magnetic thin films and arrays of magnetic nanostructures with reconfigurable microwave properties offer bias-field-free solution and on-chip integration of the microwave components. We are interested in such self-biased nanomagnets and magnetic thin films for re-programmable microwave devices.
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