Reconfiguration of magnetic domain structures of ErFeO3 by intense terahertz free electron laser pulses

Kurihara, Takayuki; Hirota, Kazumasa; Qiu, Hongsong; Phan, Khoa Thanh Nhat; Kato, Kosaku; Isoyama, Goro; Nakajima, Makoto

Reconfiguration of magnetic domain structures of ErFeO3 by intense terahertz free electron laser pulses

Dateien

Kurihara_2-mni6bk5g698p6.pdfGröße: 1.16 MBDownloads: 255

Datum

2020

Autor:innen

Kurihara, Takayuki

Hirota, Kazumasa

Qiu, Hongsong

Phan, Khoa Thanh Nhat

Kato, Kosaku

Isoyama, Goro

Nakajima, Makoto

Open Access-Veröffentlichung

Open Access Gold

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Scientific reports. Springer Nature. 2020, 10(1), 7321. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-64147-5

Zusammenfassung

Understanding the interaction between intense terahertz (THz) electromagnetic fields and spin systems has been gaining importance in modern spintronics research as a unique pathway to realize ultrafast macroscopic magnetization control. In this work, we used intense THz pulses with pulse energies in the order of 10 mJ/pulse generated from the terahertz free electron laser (THz-FEL) to irradiate the ferromagnetic domains of ErFeO3 single crystal. It was found that the domain shape can be locally reconfigured by irradiating the THz - FEL pulses near the domain boundary. Observed domain reconfiguration mechanism can be phenomenologically understood by the combination of depinning effect and the entropic force due to local thermal gradient exerted by terahertz irradiation. Our finding opens up a new possibility of realizing thermal-spin effects at THz frequency ranges by using THz-FEL pulses.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

KURIHARA, Takayuki, Kazumasa HIROTA, Hongsong QIU, Khoa Thanh Nhat PHAN, Kosaku KATO, Goro ISOYAMA, Makoto NAKAJIMA, 2020. Reconfiguration of magnetic domain structures of ErFeO3 by intense terahertz free electron laser pulses. In: Scientific reports. Springer Nature. 2020, 10(1), 7321. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-64147-5

BibTex

@article{Kurihara2020-04-30Recon-51353,
  year={2020},
  doi={10.1038/s41598-020-64147-5},
  title={Reconfiguration of magnetic domain structures of ErFeO3 by intense terahertz free electron laser pulses},
  number={1},
  volume={10},
  journal={Scientific reports},
  author={Kurihara, Takayuki and Hirota, Kazumasa and Qiu, Hongsong and Phan, Khoa Thanh Nhat and Kato, Kosaku and Isoyama, Goro and Nakajima, Makoto},
  note={Article Number: 7321}
}

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