Two-particle spin entanglement in magnetic Anderson nanoclusters

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We investigate the two-particle spin entanglement in magnetic nanoclusters described by the periodic Anderson model. An entanglement phase diagram is obtained, providing an important perspective on a central property of magnetic nanoclusters, namely, the temperature-dependent competition between local Kondo screening and nonlocal Ruderman-Kittel-Kasuya-Yoshida spin ordering. We find that multiparticle entangled states are present for finite magnetic field as well as in the mixed valence regime and away from half filling. Our results emphasize the role of charge fluctuations.
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Issue number13
Publication statusPublished - 2007

Subject classification (UKÄ)

  • Condensed Matter Physics


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