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2007 | 111 | 4 | 487-496
Article title

Kondo Insulating State in CeRhSb_{1-x}Sn_x as a Function of Carrier Number and Its Subsequent Metallization

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Abstracts
EN
A quantum critical point represents an essential singularity in the phase diagram of the electron-correlated compounds. In the CeRhSb_{1-x}Sn_x system we have observed a quantum criticality at the boundary Kondo insulator-non-Fermi liquid state. In this series of compounds, CeRhSb has a Kondo insulating ground state, whereas CeRhSn exhibits a non-Landau Fermi liquid behavior. In view of different types of behavior of CeRhSb and CeRhSn, we review the results of the solution in CeRhSb_{1-x}Sn_x and discuss the effect of a quasi-continuous change of the number of conduction electrons on the gap formation in the Kondo-insulating regime, as well as on the critical behavior appearance near the quantum critical point.
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Contributors
author
  • Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Marian Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
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Document Type
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bwmeta1.element.bwnjournal-article-appv111n408kz
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