Ruderman-Kittel-Kasuya-Yosida spin density oscillations: impact of the finite radius of the exchange interaction

dc.creatorSmirnov, Sergey
dc.date2009-01-21
dc.date2009-04-06
dc.date.accessioned2026-07-07T13:00:08Z
dc.date.available2026-07-07T13:00:08Z
dc.descriptionA non-interacting electron gas on a one-dimensional ring is considered at finite temperatures. The localized spin is embedded at some point on the ring and it is assumed that the interaction between this spin and the electrons is the exchange interaction being the basis of the Ruderman-Kittel-Kasuya-Yosida indirect exchange effect. When the number of electrons is large enough, it turns out that any small but finite interaction radius value can always produce an essential change of the spin density oscillations in comparison with the zero interaction radius traditionally used to model the Ruderman-Kittel-Kasuya-Yosida effect.
dc.description6 pages, 4 figures, early attempts to take into account the finite size of the ionic spin distribution in connection with Heusler alloys are now metioned
dc.identifierhttps://arxiv.org/abs/0901.3339
dc.identifierhttp://arxiv.org/abs/0901.3339
dc.identifierPhysical Review B 79, 134403 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.134403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225767
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStatistical Mechanics
dc.titleRuderman-Kittel-Kasuya-Yosida spin density oscillations: impact of the finite radius of the exchange interaction
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