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20 August 2020 Implementing Maxwell's demon in spintronics devices
Inanc Adagideli, Ahmet M. Bozkurt, Baris Pekerten
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Proceedings Volume 11470, Spintronics XIII; 114702A (2020) https://doi.org/10.1117/12.2569791
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
Landauer's principle states that erasure of each bit of information in a system requires at least a unit of energy kBTln2 to be dissipated. In return, the blank bit may possibly be utilized to extract usable work of the amount kBTln2, in keeping with the second law of thermodynamics. In this work, we build on our earlier work on spin Hall devices and focus on heat and charge transport in generic spintronics devices in the presence of a spin bath. We show how a properly initialized nuclear spin subsystem can be used as a memory resource for a Maxwell's Demon to harvest available heat energy from the reservoirs to induce charge current that can power an external electrical load. We also show how to initialize the nuclear spin subsystem using charge currents which necessarily dissipate energy. This opens up a new avenue towards energy storage applications using spintronics devices.
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Inanc Adagideli, Ahmet M. Bozkurt, and Baris Pekerten "Implementing Maxwell's demon in spintronics devices", Proc. SPIE 11470, Spintronics XIII, 114702A (20 August 2020); https://doi.org/10.1117/12.2569791
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KEYWORDS
Spintronics
Thermodynamics
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