6533b85bfe1ef96bd12bbea7
RESEARCH PRODUCT
Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
David MacneillPaul C. CanfieldPaul C. CanfieldDavid SorianoKenji WatanabeSoham ManniSoham ManniSoham ManniJose L. LadoPablo Jarillo-herreroJoaquín Fernández-rossierTakashi TaniguchiEfrén Navarro-moratallaDahlia R. Kleinsubject
Materials scienceFísica de la Materia CondensadaMagnetismFOS: Physical sciencesMagnetic insulators02 engineering and technology01 natural sciencessymbols.namesakeCondensed Matter::Materials ScienceCondensed Matter - Strongly Correlated ElectronsMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesMultiferroicsElectron tunneling010306 general physicsQuantum tunnellingCondensed Matter - Materials ScienceMultidisciplinaryStrongly Correlated Electrons (cond-mat.str-el)SpintronicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsMagnonMaterials Science (cond-mat.mtrl-sci)Crystalline insulators021001 nanoscience & nanotechnologyCondensed Matter::Mesoscopic Systems and Quantum Hall EffectMagnetic fieldFerromagnetismsymbolsCondensed Matter::Strongly Correlated Electronsvan der Waals force0210 nano-technologydescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-26 |