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Vortex rectenna powered by environmental fluctuations

Author

Listed:
  • J. Lustikova

    (Tohoku University)

  • Y. Shiomi

    (Tohoku University
    The University of Tokyo)

  • N. Yokoi

    (Tohoku University)

  • N. Kabeya

    (Tohoku University
    Tohoku University)

  • N. Kimura

    (Tohoku University
    Tohoku University)

  • K. Ienaga

    (Tokyo Institute of Technology)

  • S. Kaneko

    (Tokyo Institute of Technology)

  • S. Okuma

    (Tokyo Institute of Technology)

  • S. Takahashi

    (Tohoku University)

  • E. Saitoh

    (Tohoku University
    Tohoku University
    Japan Atomic Energy Agency
    The University of Tokyo)

Abstract

A rectenna, standing for a rectifying antenna, is an apparatus which generates d.c. electricity from electric fluctuations. It is expected to realize wireless power transmission as well as energy harvesting from environmental radio waves. To realize such rectification, devices that are made up of internal atomic asymmetry such as an asymmetric junction have been necessary so far. Here we report a material that spontaneously generates electricity by rectifying environmental fluctuations without using atomic asymmetry. The sample is a common superconductor without lowered crystalline symmetry, but, just by putting it in an asymmetric magnetic environment, it turns into a rectifier and starts generating electricity. Superconducting vortex strings only annihilate and nucleate at surfaces, and this allows the bulk electrons to feel surface fluctuations in an asymmetric environment: a vortex rectenna. The rectification and generation can be switched on and off with only a slight change in temperature or external magnetic fields.

Suggested Citation

  • J. Lustikova & Y. Shiomi & N. Yokoi & N. Kabeya & N. Kimura & K. Ienaga & S. Kaneko & S. Okuma & S. Takahashi & E. Saitoh, 2018. "Vortex rectenna powered by environmental fluctuations," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07352-1
    DOI: 10.1038/s41467-018-07352-1
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    Cited by:

    1. Taras Golod & Vladimir M. Krasnov, 2022. "Demonstration of a superconducting diode-with-memory, operational at zero magnetic field with switchable nonreciprocity," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Yuki M. Itahashi & Toshiya Ideue & Shintaro Hoshino & Chihiro Goto & Hiromasa Namiki & Takao Sasagawa & Yoshihiro Iwasa, 2022. "Giant second harmonic transport under time-reversal symmetry in a trigonal superconductor," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Zhaowei Zhang & Naizhou Wang & Ning Cao & Aifeng Wang & Xiaoyuan Zhou & Kenji Watanabe & Takashi Taniguchi & Binghai Yan & Wei-bo Gao, 2022. "Controlled large non-reciprocal charge transport in an intrinsic magnetic topological insulator MnBi2Te4," Nature Communications, Nature, vol. 13(1), pages 1-6, December.

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