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Electrical control of large magnetization reversal in a helimagnet

Author

Listed:
  • Yi Sheng Chai

    (Center for Novel States of Complex Material Research (CeNSCMR), Seoul National University)

  • Sangil Kwon

    (KAIST)

  • Sae Hwan Chun

    (Center for Novel States of Complex Material Research (CeNSCMR), Seoul National University)

  • Ingyu Kim

    (Center for Novel States of Complex Material Research (CeNSCMR), Seoul National University)

  • Byung-Gu Jeon

    (Center for Novel States of Complex Material Research (CeNSCMR), Seoul National University)

  • Kee Hoon Kim

    (Center for Novel States of Complex Material Research (CeNSCMR), Seoul National University
    Institute of Applied Physics, Seoul National University)

  • Soonchil Lee

    (KAIST)

Abstract

Reversal of magnetization M by an electrical field E has been a long-sought phenomenon in materials science because of its potential for applications such as memory devices. However, the phenomenon has rarely been achieved and remains a considerable challenge. Here we report the large M reversal by E in a multiferroic Ba0.5Sr1.5Zn2(Fe0.92Al0.08)12O22 crystal without any external magnetic field. Upon sweeping E through the range of ±2 MV m−1, M varied quasi-linearly in the range of ±2 μB per f.u., resulting in the M reversal. Strong electrical modulation of M at zero magnetic field were observable up to ~\n150 K. Nuclear magnetic resonance measurements provided microscopic evidence that the electric field and the magnetic field play equivalent roles in modulating the volume of magnetic domains. Our results suggest that the soft ferrimagnetism and the associated transverse conical state are key ingredients to achieve the large magnetization reversal at fairly high temperatures.

Suggested Citation

  • Yi Sheng Chai & Sangil Kwon & Sae Hwan Chun & Ingyu Kim & Byung-Gu Jeon & Kee Hoon Kim & Soonchil Lee, 2014. "Electrical control of large magnetization reversal in a helimagnet," Nature Communications, Nature, vol. 5(1), pages 1-8, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5208
    DOI: 10.1038/ncomms5208
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    Cited by:

    1. Somnath Ghara & Evgenii Barts & Kirill Vasin & Dmytro Kamenskyi & Lilian Prodan & Vladimir Tsurkan & István Kézsmárki & Maxim Mostovoy & Joachim Deisenhofer, 2023. "Magnetization reversal through an antiferromagnetic state," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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