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Ground-State Spin Blockade in a Single-Molecule Junction

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Ground-State Spin Blockade in a Single-Molecule Junction

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dc.contributor.author	De Bruijckere, J.
dc.contributor.author	Gehring, P.
dc.contributor.author	Palacios-Corella, M.
dc.contributor.author	Clemente León, Miguel
dc.contributor.author	Coronado Miralles, Eugenio
dc.contributor.author	Paaske, J.
dc.contributor.author	Hedegård, P.
dc.contributor.author	Van der Zant, H. S. J.
dc.date.accessioned	2020-04-06T09:07:50Z
dc.date.available	2020-04-06T09:07:50Z
dc.date.issued	2019
dc.identifier.citation	De Bruijckere, J. Gehring, P. Palacios-Corella, M. Clemente León, Miguel Coronado Miralles, Eugenio Paaske, J. Hedegård, P. Van der Zant, H.S.J. 2019 Ground-State Spin Blockade in a Single-Molecule Junction Physical Review Letters 122 197701-1 197701-5
dc.identifier.uri	https://hdl.handle.net/10550/73778
dc.description.abstract	It is known that the quantum mechanical ground state of a nanoscale junction has a significant impact on its electrical transport properties. This becomes particularly important in transistors consisting of a single molecule. Because of strong electron-electron interactions and the possibility of accessing ground states with high spins, these systems are eligible hosts of a current-blockade phenomenon called a ground-state spin blockade. This effect arises from the inability of a charge carrier to account for the spin difference required to enter the junction, as that process would violate the spin selection rules. Here, we present a direct experimental demonstration of a ground-state spin blockade in a high-spin single-molecule transistor. The measured transport characteristics of this device exhibit a complete suppression of resonant transport due to a ground-state spin difference of 3/2 between subsequent charge states. Strikingly, the blockade can be reversibly lifted by driving the system through a magnetic ground-state transition in one charge state, using the tunability offered by both magnetic and electric fields.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2019, vol. 122, p. 197701-1-197701-5
dc.subject	Partícules (Física nuclear)
dc.subject	Quàntums, Teoria dels
dc.title	Ground-State Spin Blockade in a Single-Molecule Junction
dc.type	journal article	es_ES
dc.date.updated	2020-04-06T09:07:50Z
dc.identifier.doi	10.1103/PhysRevLett.122.197701
dc.identifier.idgrec	134323
dc.rights.accessRights	open access	es_ES