Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
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Título: | Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling |
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Autor/es: | Klein, Dahlia R. | MacNeill, David | Lado, Jose L. | Soriano, David | Navarro-Moratalla, Efrén | Watanabe, Kenji | Taniguchi, Takashi | Manni, Soham | Canfield, Paul | Fernández-Rossier, Joaquín | Jarillo-Herrero, Pablo |
Grupo/s de investigación o GITE: | Grupo de Nanofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Magnetic insulators | Crystalline insulators | Electron tunneling |
Área/s de conocimiento: | Física de la Materia Condensada |
Fecha de publicación: | 3-may-2018 |
Editor: | American Association for the Advancement of Science |
Cita bibliográfica: | Science. 2018. doi:10.1126/science.aar3617 |
Resumen: | 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 inter-layer coupling and observe a field-induced metamagnetic 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. |
Patrocinador/es: | This work was supported by the Center for Integrated Quantum Materials under NSF grant DMR-1231319 as well as the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4541 to PJH. Device fabrication has been partly supported by the Center for Excitonics, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES) under Award Number DESC0001088. DRK acknowledges partial support by the NSF Graduate Research Fellowship Program (GRFP) under Grant No. 1122374. JLL acknowledges financial support from the ETH Zurich Postdoctoral Fellowship program. DS acknowledges the Marie Curie Cofund program at INL. JFR thanks support from PTDC/FIS-NAN/3668/2014. Growth of hexagonal boron nitride crystals at NIMS was supported by the Elemental Strategy Initiative conducted by the MEXT, Japan and JSPS KAKENHI Grant Numbers JP15K21722 and JP25106006. Work done at Ames Laboratory (PCC and SM) was supported by the DOE BES Division of Materials Sciences and Engineering. Ames Laboratory is operated for the DOE by Iowa State University under Contract No. DE-AC02-07CH11358. SM was funded by the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4411. |
URI: | http://hdl.handle.net/10045/76234 |
ISSN: | 0036-8075 (Print) | 1095-9203 (Online) |
DOI: | 10.1126/science.aar3617 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1126/science.aar3617 |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2018_Klein_etal_Science_final.pdf | Versión final (acceso restringido) | 1,4 MB | Adobe PDF | Abrir Solicitar una copia |
2018_Klein_etal_Science_preprint.pdf | Preprint (acceso abierto) | 4,43 MB | Adobe PDF | Abrir Vista previa |
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