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  Switchable magnetic bulk photovoltaic effect in the two-dimensional magnet CrI3

Zhang, Y., Holder, T., Ishizuka, H., de Juan, F., Nagaosa, N., Felser, C., et al. (2019). Switchable magnetic bulk photovoltaic effect in the two-dimensional magnet CrI3. Nature Communications, 10(1): 3783, pp. 1-7. doi:10.1038/s41467-019-11832-3.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-97EF-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-97F6-C
Genre: Journal Article

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 Creators:
Zhang, Yang1, Author              
Holder, Tobias2, Author
Ishizuka, Hiroaki2, Author
de Juan, Fernando2, Author
Nagaosa, Naoto2, Author
Felser, Claudia3, Author              
Yan, Binghai2, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: The bulk photovoltaic effect (BPVE) rectifies light into the dc current in a single-phase material and attracts the interest to design high-efficiency solar cells beyond the pn junction paradigm. Because it is a hot electron effect, the BPVE surpasses the thermodynamic Shockley–Queisser limit to generate above-band-gap photovoltage. While the guiding principle for BPVE materials is to break the crystal centrosymmetry, here we propose a magnetic photogalvanic effect (MPGE) that introduces the magnetism as a key ingredient and induces a giant BPVE. The MPGE emerges from the magnetism-induced asymmetry of the carrier velocity in the band structure. We demonstrate the MPGE in a layered magnetic insulator CrI3, with much larger photoconductivity than any previously reported results. The photocurrent can be reversed and switched by controllable magnetic transitions. Our work paves a pathway to search for magnetic photovoltaic materials and to design switchable devices combining magnetic, electronic, and optical functionalities. © 2019, The Author(s).

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Language(s): eng - English
 Dates: 2019-08-222019-08-22
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-019-11832-3
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 10 (1) Sequence Number: 3783 Start / End Page: 1 - 7 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723