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19 April 2024 |
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Spin-blockade spectroscopy of a two-level artificial molecule | | M. Pioro-Ladriere
; M. Ciorga
; J. Lapointe
; P. Zawadzki
; M. Korkusinski
; P. Hawrylak
; A.S. Sachrajda
; | | Date: |
20 Dec 2002 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Affiliation: | 1 and 2), M. Ciorga , J. Lapointe , P. Zawadzki , M. Korkusinski , P. Hawrylak , A.S. Sachrajda ( Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Ontario, Canada; Centre de Recherche sur les Proprietes Electroniqu | | Abstract: | Coulomb and spin blockade spectroscopy investigations have been performed on an electrostatically defined ``artificial molecule’’ connected to spin polarized leads. The molecule is first effectively reduced to a two-level system by placing both constituent atoms at a specific location of the level spectrum. The spin sensitivity of the conductance enables us to identify the electronic spin-states of the two-level molecule. We find in addition that the magnetic field induces variations in the tunnel coupling between the two atoms. The lateral nature of the device is evoked to explain this behavior. | | Source: | arXiv, cond-mat/0301360 | | Services: | Forum | Review | PDF | Favorites | |
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