Metal-non-metal transition and specific heat of Kondo insulators

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The metal-non-metal transition in Kondo insulators of the type (Ce1-xLax)3Bi4Pt3 is studied as a function of the La (Kondo hole) concentration x. We explore the transition under variation of the applied magnetic field, the pressure, and the temperature. The many-body effects are treated by diagonali...

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Autor principal: Büsser, C.A
Otros Autores: Anda V, E., Chiappe, Guillermo
Formato: Acta de conferencia Capítulo de libro
Lenguaje:Inglés
Publicado: IOP 2000
Acceso en línea:Registro en Scopus
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Biblioteca Central Dr. Luis F. Leloir (FCEN) de Universidad de Buenos Aires
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100 1 |a Büsser, C.A. 
245 1 0 |a Metal-non-metal transition and specific heat of Kondo insulators 
260 |b IOP  |c 2000 
270 1 0 |m Busser, C.A.; Pontificia Universidade Catolica do, Rio de Janeiro, Rio de Janeiro, Brazil 
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504 |a Verges, J.A., Louis, E., Flores, F., Anda, E.V., (1987) Phys. Rev. B, 35, p. 7146 
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506 |2 openaire  |e Política editorial 
520 3 |a The metal-non-metal transition in Kondo insulators of the type (Ce1-xLax)3Bi4Pt3 is studied as a function of the La (Kondo hole) concentration x. We explore the transition under variation of the applied magnetic field, the pressure, and the temperature. The many-body effects are treated by diagonalizing the site Hamiltonian and embedding this solution into the lattice, using the chain approximation. The alloy states at the Fermi energy are obtained using a real-space renormalization technique. The metal-insulator transition produced by the incorporation of La impurities is explained by the appearance of a delocalized level inside the conduction band rather than by the creation of an impurity band at the gap.  |l eng 
593 |a Departamento de Física, Pont. Univ. Catol. do Rio de Janeiro, CP 38071-970, Rio de Janeiro, RJ, Brazil 
593 |a Departamento de Física, Fac. de Ciencias Exactas y Naturales, Aires Ciudad Universitaria, 1428, Buenos Aires, Argentina 
690 1 0 |a APPROXIMATION THEORY 
690 1 0 |a ELECTRONS 
690 1 0 |a FERMI LEVEL 
690 1 0 |a HAMILTONIANS 
690 1 0 |a IMPURITIES 
690 1 0 |a MAGNETIC FIELD EFFECTS 
690 1 0 |a PRESSURE EFFECTS 
690 1 0 |a SPECIFIC HEAT OF SOLIDS 
690 1 0 |a THERMAL EFFECTS 
690 1 0 |a KONDO HOLE 
690 1 0 |a KONDO INSULATORS 
690 1 0 |a METAL-NON-METAL TRANSITION 
690 1 0 |a REAL SPACE RENORMALIZATION TECHNIQUE 
690 1 0 |a BISMUTH ALLOYS 
700 1 |a Anda V, E. 
700 1 |a Chiappe, Guillermo 
711 2 |c Bristol, United Kingdom 
773 0 |d IOP, 2000  |g v. 12  |h pp. 9885-9896  |k n. 48  |p J Phys Condens Matter  |x 09538984  |w (AR-BaUEN)CENRE-311  |t Journal of Physics Condensed Matter 
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856 4 0 |u https://doi.org/10.1088/0953-8984/12/48/306  |y DOI 
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