Argentina | info:eu-repo/semantics/article
dc.creatorGranada, Mara
dc.creatorLucot, D.
dc.creatorGiraud, R.
dc.creatorLemaître, A.
dc.creatorUlysse, C.
dc.creatorWaintal, X.
dc.creatorFaini, G.
dc.date.accessioned2018-07-13T19:05:34Z
dc.date.available2018-07-13T19:05:34Z
dc.date.created2018-07-13T19:05:34Z
dc.date.issued2015-06
dc.identifierGranada, Mara; Lucot, D.; Giraud, R.; Lemaître, A.; Ulysse, C.; et al.; Direct probing of band-structure Berry phase in diluted magnetic semiconductors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 23; 6-2015; 1-6; 235203
dc.identifier1098-0121
dc.identifierhttp://hdl.handle.net/11336/52084
dc.identifierCONICET Digital
dc.identifierCONICET
dc.description.abstractWe report on experimental evidence of the Berry phase accumulated by the charge-carrier wave function in single-domain nanowires made from a (Ga, Mn)(As, P) diluted ferromagnetic semiconductor layer. Its signature on the mesoscopic transport measurements is revealed as unusual patterns in the magnetoconductance that are clearly distinguished from the universal conductance fluctuations. We show that these patterns appear in a magnetic field region where the magnetization rotates coherently and are related to a change in the band-structure Berry phase as the magnetization direction changes. They should thus be considered a band-structure Berry phase fingerprint of the effective magnetic monopoles in the momentum space. We argue that this is an efficient method to vary the band structure in a controlled way and to probe it directly. Hence, (Ga, Mn)As appears to be a very interesting test bench for new concepts based on this geometrical phase.
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.91.235203
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.235203
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBerry Phase
dc.subjectDiluted Magnetic Semiconductors
dc.subjectConductance Fluctuations
dc.titleDirect probing of band-structure Berry phase in diluted magnetic semiconductors
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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