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Magnetic field-tuned Fermi liquid in a Kondo insulator.
Kushwaha, Satya K; Chan, Mun K; Park, Joonbum; Thomas, S M; Bauer, Eric D; Thompson, J D; Ronning, F; Rosa, Priscila F S; Harrison, Neil.
Afiliación
  • Kushwaha SK; MPA-MAGLAB, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Chan MK; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Park J; MPA-MAGLAB, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Thomas SM; MPA-MAGLAB, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Bauer ED; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Thompson JD; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Ronning F; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Rosa PFS; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
  • Harrison N; MPA-CMMS, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
Nat Commun ; 10(1): 5487, 2019 12 02.
Article en En | MEDLINE | ID: mdl-31792205
ABSTRACT
Kondo insulators are expected to transform into metals under a sufficiently strong magnetic field. The closure of the insulating gap stems from the coupling of a magnetic field to the electron spin, yet the required strength of the magnetic field-typically of order 100 T-means that very little is known about this insulator-metal transition. Here we show that Ce[Formula see text]Bi[Formula see text]Pd[Formula see text], owing to its fortuitously small gap, provides an ideal Kondo insulator for this investigation. A metallic Fermi liquid state is established above a critical magnetic field of only [Formula see text] 11 T. A peak in the strength of electronic correlations near [Formula see text], which is evident in transport and susceptibility measurements, suggests that Ce[Formula see text]Bi[Formula see text]Pd[Formula see text] may exhibit quantum criticality analogous to that reported in Kondo insulators under pressure. Metamagnetism and the breakdown of the Kondo coupling are also discussed.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos