Tuning order-by-disorder multiferroicity in CuO by doping (Articolo in rivista)

Type
Label
  • Tuning order-by-disorder multiferroicity in CuO by doping (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.90.014437 (literal)
Alternative label
  • J. Hellsvik (1,2,3); M. Balestieri (1,2); T. Usui (4); A. Stroppa (3); A. Bergman (5); L. Bergqvist (6); D. Prabhakaran (7); O. Eriksson (5); S. Picozzi (3); T. Kimura (4); J. Lorenzana (1,2) (2014)
    Tuning order-by-disorder multiferroicity in CuO by doping
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • J. Hellsvik (1,2,3); M. Balestieri (1,2); T. Usui (4); A. Stroppa (3); A. Bergman (5); L. Bergqvist (6); D. Prabhakaran (7); O. Eriksson (5); S. Picozzi (3); T. Kimura (4); J. Lorenzana (1,2) (literal)
Pagina inizio
  • 014437 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.014437 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 90 (literal)
Rivista
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  • 9 (literal)
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  • 1 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Fisica, Università di Roma \"La Sapienza\" - Piazzale Aldo Moro 2, I-00185 Roma, Italy (2) Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Italy (3) Consiglio Nazionale delle Ricerche (CNR-SPIN), Via Vetoio 10, I-67100 L'Aquila, Italy (4) Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan (5) Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden (6) Department of Materials and Nano Physics, KTH Royal Institute of Technology, Electrum 229, SE-164 40 Kista, Sweden (7) Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom (literal)
Titolo
  • Tuning order-by-disorder multiferroicity in CuO by doping (literal)
Abstract
  • The high Curie temperature multiferroic compound CuO has a quasidegenerate magnetic ground state that makes it prone to manipulation by the so-called \"order-by-disorder\" mechanism. First principle computations supplemented with Monte Carlo simulations and experiments show that isovalent doping allows us to stabilize the multiferroic phase in nonferroelectric regions of the pristine material phase diagram with experiments reaching a 250% widening of the ferroelectric temperature window with 5% of Zn doping. Our results allow us to validate the importance of a quasidegenerate ground state on promoting multiferroicity on CuO at high temperatures and open a path to the material engineering of multiferroic materials. In addition we present a complete explanation of the CuO phase diagram and a computation on the incommensurability in excellent agreement with experiment without free parameters. (literal)
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