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Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
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1801.10075.pdf
Size
3.46 MB
Format
Adobe PDF
Checksum (MD5)
3ecf39e815877d5e317dc069008532d9
Author(s)
Klein, Dahlia Rivka
MacNeill, David
Lado, J. L.
Soriano, D.
Navarro-Moratalla, E.
Watanabe, K.
Taniguchi, T.
Manni, S.
Canfield, P.
Fernandez-Rossier, J.
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Klein, D. R. et al. “Probing Magnetism in 2D van Der Waals Crystalline Insulators via Electron Tunneling.” Science 360, 6394 (May 2018): 1218–1222 © 2018 American Association for the Advancement of Science
Version
Original manuscript
Abstract
Magnetic insulators are a key resource for next-generation spintronic and topological devices. The family of layered metal halides promises varied magnetic states, including ultrathin insulating multiferroics, spin liquids, and ferromagnets, but device-oriented characterization methods are needed to unlock their potential. Here, we report tunneling through the layered magnetic insulator CrI₃ as a function of temperature and applied magnetic field.We electrically detect the magnetic ground state and interlayer coupling and observe a fieldinducedmetamagnetic transition.The metamagnetic transition results in magnetoresistances of 95, 300, and 550% for bilayer, trilayer, and tetralayer CrI₃ barriers, respectively.We further measure inelastic tunneling spectra for our junctions, unveiling a rich spectrum consistent with collective magnetic excitations (magnons) in CrI₃.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
http://dx.doi.org/10.1126/SCIENCE.AAR3617
