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  Controlling heat and particle currents in nanodevices by quantum observation

Biele, R., Rodríguez-Rosario, C. A., Frauenheim, T., & Rubio, A. (2017). Controlling heat and particle currents in nanodevices by quantum observation. npj Quantum Materials, 2: 38. doi:10.1038/s41535-017-0043-6.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002C-1573-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0004-AA63-D
Genre: Journal Article

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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
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 Creators:
Biele, R.1, Author
Rodríguez-Rosario, César A.1, 2, 3, Author           
Frauenheim, T.4, Author
Rubio, Angel1, 2, 3, Author           
Affiliations:
1Nano-Bio Spectroscopy Group and ETSF, Department of Materials Science, Universidad del País Vasco UPV/EHU, E-20018 San Sebastián, Spain, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Center for Free-Electron Laser Science and Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761, Germany, ou_persistent22              
4Bremen Center for Computational Materials Science, Bremen 28359, Germany, ou_persistent22              

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Free keywords: TRANSPORT; JUNCTIONS; NANOSCALE; RATCHETS; FLOW
 Abstract: We demonstrate that in a standard thermo-electric nanodevice the current and heat flows are not only dictated by the temperature and potential gradient, but also by the external action of a local quantum observer that controls the coherence of the device. Depending on how and where the observation takes place, the direction of heat and particle currents can be independently controlled. In fact, we show that the current and heat flow in a quantum material can go against the natural temperature and voltage gradients. Dynamical quantum observation offers new possibilities for the control of quantum transport far beyond classical thermal reservoirs. Through the concept of local projections, we illustrate how we can create and directionality control the injection of currents (electronic and heat) in nanodevices. This scheme provides novel strategies to construct quantum devices with application in thermoelectrics, spintronic injection, phononics, and sensing among others. In particular, highly efficient and selective spin injection might be achieved by local spin projection techniques.

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Language(s): eng - English
 Dates: 2016-11-252017-05-242017-06-152017-07-102017-07-10
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 1611.08471
DOI: 10.1038/s41535-017-0043-6
 Degree: -

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Project name : We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT578-13) and European Union’s Horizon 2020 Research and Innovation program under Grant Agreements no. 676580 (NOMAD) and the Marie Sklodowska-Curie Individual fellowships H2020-MSCA-IF-2015 grant no. 706890. We acknowledge Florian Eich, Fabio Covito, Roberto D’Agosta, and Peter Hänggi for interesting discussions and helpful comments. R.B. acknowledges the financial support of the Ministerio de Educacion, Cultura y Deporte (Grant No. FPU12/01576). The sources of any support are European Research Council (ERC-2015-AdG-694097); Grupos Consolidados (IT578-13); European Union’s Horizon 2020 Research and Innovation program (676580, NOMAD); Ministerio de Educacion, Cultura y Deporte (FPU12/01576).
Grant ID : 676580
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT578-13) and European Union’s Horizon 2020 Research and Innovation program under Grant Agreements no. 676580 (NOMAD) and the Marie Sklodowska-Curie Individual fellowships H2020-MSCA-IF-2015 grant no. 706890. We acknowledge Florian Eich, Fabio Covito, Roberto D’Agosta, and Peter Hänggi for interesting discussions and helpful comments. R.B. acknowledges the financial support of the Ministerio de Educacion, Cultura y Deporte (Grant No. FPU12/01576). The sources of any support are European Research Council (ERC-2015-AdG-694097); Grupos Consolidados (IT578-13); European Union’s Horizon 2020 Research and Innovation program (676580, NOMAD); Ministerio de Educacion, Cultura y Deporte (FPU12/01576).
Grant ID : 706890
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: npj Quantum Materials
Source Genre: Journal
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Publ. Info: [London] : Nature Publishing Group
Pages: - Volume / Issue: 2 Sequence Number: 38 Start / End Page: - Identifier: Other: 2397-4648
CoNE: https://pure.mpg.de/cone/journals/resource/2397-4648