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Out-of-Plane Transport of 1T-TaS2/Graphene-Based van der Waals Heterostructures
dc.contributor.author | Boix-Constant, Carla | |
dc.contributor.author | Mañas-Valero, Samuel | |
dc.contributor.author | Córdoba, Rosa | |
dc.contributor.author | Baldoví, José J. | |
dc.contributor.author | Rubio Secades, Angel | |
dc.contributor.author | Coronado, Eugenio | |
dc.date.accessioned | 2021-10-20T08:29:10Z | |
dc.date.available | 2021-10-20T08:29:10Z | |
dc.date.issued | 2021-07-27 | |
dc.identifier.citation | ACS Nano 15(7) : 11898-11907 (2021) | es_ES |
dc.identifier.issn | 1936-0851 | |
dc.identifier.issn | 1936-086X | |
dc.identifier.uri | http://hdl.handle.net/10810/53494 | |
dc.description.abstract | Due to their anisotropy, layered materials are excellent candidates for studying the interplay between the inplane and out-of-plane entanglement in strongly correlated systems. A relevant example is provided by 1T-TaS2, which exhibits a multifaceted electronic and magnetic scenario due to the existence of several charge density wave (CDW) configurations. It includes quantum hidden phases, super-conductivity and exotic quantum spin liquid (QSL) states, which are highly dependent on the out-of-plane stacking of the CDW. In this system, the interlayer stacking of the CDW is crucial for interpreting the underlying electronic and magnetic phase diagram. Here, atomically thin-layers of 1T-TaS2 are integrated in vertical van der Waals heterostructures based on few-layers graphene contacts and their electrical transport properties are measured. Different activation energies in the conductance and a gap at the Fermi level are clearly observed. Our experimental findings are supported by fully self-consistent DFT+U calculations, which evidence the presence of an energy gap in the few-layer limit, not necessarily coming from the formation of out-of-plane spin-paired bilayers at low temperatures, as previously proposed for the bulk. These results highlight dimensionality as a key effect for understanding quantum materials as 1T-TaS2 , enabling the possible experimental realization of low-dimensional QSLs. | es_ES |
dc.description.sponsorship | We acknowledge the financial support from the European Union (ERC AdG Mol-2D 788222 and ERC-2015-AdG694097), the Spanish MICINN (MAT2017-89993-R cofinanced by FEDER and Excellence Unit "Mari ' a de Maeztu", CEX2019-000919-M), the Generalitat Valenciana (Prometeo program and PO FEDER Program, ref IDIFEDER/2018/061 and IDIFEDER/2020/063), the Basque government (Grupos Consolidados, IT1249-19) and the Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy Cluster of Excellence Advanced Imaging of Matter (AIM) EXC 2056-390715994 and funding by the Deutsche Forschungsgemeinschaft (DFG) under RTG 1995 and GRK 2247. Support by the Max Planck Institute -New York City Center for Non-Equilibrium Quantum Phenomena is acknowledged. R.C. acknowledges the support of a fellowship from "la Caixa" Foundation (ID 100010434). The fellowship code is LCF/BQ/PR19/11700008. J.J.B. thanks support from the Plan Gent of Excellence of the Generalitat Valenciana (CDEIGENT/2019/022). C.B.-C. thanks the Generalitat Valencia for a PhD fellowship. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Chemical Society | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/788222 | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/694097 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/MAT2017-89993-R | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | 2D materials | es_ES |
dc.subject | Van der Waals heterostructures | es_ES |
dc.subject | quantum materials | es_ES |
dc.subject | electrical properties | es_ES |
dc.subject | DFT calculations | es_ES |
dc.subject | charge-density waves | es_ES |
dc.subject | transition-metal dichalcogenides | es_ES |
dc.subject | phase-transitions | es_ES |
dc.subject | 1T-TAS2 | es_ES |
dc.subject | statemodel | es_ES |
dc.title | Out-of-Plane Transport of 1T-TaS2/Graphene-Based van der Waals Heterostructures | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | 2021 American Chemical Society. Este trabajo está publicado bajo una licencia Creative Commons Attribution 4.0 International (CC BY 4.0) | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://pubs.acs.org/doi/10.1021/acsnano.1c03012 | es_ES |
dc.identifier.doi | 10.1021/acsnano.1c03012 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física de materiales | es_ES |
dc.departamentoeu | Materialen fisika | es_ES |
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