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The valence-fluctuating ground state of plutonium.
Janoschek, Marc; Das, Pinaki; Chakrabarti, Bismayan; Abernathy, Douglas L; Lumsden, Mark D; Lawrence, John M; Thompson, Joe D; Lander, Gerard H; Mitchell, Jeremy N; Richmond, Scott; Ramos, Mike; Trouw, Frans; Zhu, Jian-Xin; Haule, Kristjan; Kotliar, Gabriel; Bauer, Eric D.
Afiliación
  • Janoschek M; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Das P; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Chakrabarti B; Department of Physics and Astronomy and Center for Condensed Matter Theory, Rutgers University, Piscataway, NJ 08854-8019, USA.
  • Abernathy DL; Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6475, USA.
  • Lumsden MD; Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6475, USA.
  • Lawrence JM; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Thompson JD; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Lander GH; European Commission, Joint Research Centre, Institute for Transuranium Elements, Postfach 2340, D-76125 Karlsruhe, Germany.
  • Mitchell JN; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Richmond S; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Ramos M; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Trouw F; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Zhu JX; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Haule K; Department of Physics and Astronomy and Center for Condensed Matter Theory, Rutgers University, Piscataway, NJ 08854-8019, USA.
  • Kotliar G; Department of Physics and Astronomy and Center for Condensed Matter Theory, Rutgers University, Piscataway, NJ 08854-8019, USA.
  • Bauer ED; Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Sci Adv ; 1(6): e1500188, 2015 Jul.
Article en En | MEDLINE | ID: mdl-26601219
A central issue in material science is to obtain understanding of the electronic correlations that control complex materials. Such electronic correlations frequently arise because of the competition of localized and itinerant electronic degrees of freedom. Although the respective limits of well-localized or entirely itinerant ground states are well understood, the intermediate regime that controls the functional properties of complex materials continues to challenge theoretical understanding. We have used neutron spectroscopy to investigate plutonium, which is a prototypical material at the brink between bonding and nonbonding configurations. Our study reveals that the ground state of plutonium is governed by valence fluctuations, that is, a quantum mechanical superposition of localized and itinerant electronic configurations as recently predicted by dynamical mean field theory. Our results not only resolve the long-standing controversy between experiment and theory on plutonium's magnetism but also suggest an improved understanding of the effects of such electronic dichotomy in complex materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos