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Electronic and magnetic properties of stoichiometric CeAuBi2.
Piva, M M; Tartaglia, R; Freitas, G S; Souza, J C; Christovam, D S; Thomas, S M; Leão, J B; Ratcliff, W; Lynn, J W; Lane, C; Zhu, J-X; Thompson, J D; Rosa, P F S; Adriano, C; Granado, E; Pagliuso, P G.
Affiliation
  • Piva MM; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
  • Tartaglia R; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Freitas GS; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, D-01187 Dresden, Germany.
  • Souza JC; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
  • Christovam DS; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
  • Thomas SM; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
  • Leão JB; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
  • Ratcliff W; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Lynn JW; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Lane C; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Zhu JX; NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Thompson JD; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Rosa PFS; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Adriano C; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Granado E; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Pagliuso PG; Instituto de Física "Gleb Wataghin", UNICAMP, 13083-859, Campinas, São Paulo, Brazil.
Phys Rev B ; 101(21)2020 Jun.
Article in En | MEDLINE | ID: mdl-34141976
ABSTRACT
We report the electronic and magnetic properties of stoichiometric CeAuBi2 single crystals. At ambient pressure, CeAuBi2 orders antiferromagnetically below a Néel temperature (TN ) of 19 K. Neutron diffraction experiments revealed an antiferromagnetic propagation vector τ ^ = [ 0 , 0 , 1 ∕ 2 ] , which doubles the paramagnetic unit cell along the c axis. At low temperatures several metamagnetic transitions are induced by the application of fields parallel to the c axis, suggesting that the magnetic structure of CeAuBi2 changes as a function of field. At low temperatures, a linear positive magnetoresistance may indicate the presence of band crossings near the Fermi level. Finally, the application of external pressure favors the antiferromagnetic state, indicating that the 4f electrons become more localized.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev B Year: 2020 Document type: Article
Fulltext
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PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev B Year: 2020 Document type: Article