Anisotropic physical properties of the Kondo semiconductor CeRhSb

Takabatake, Toshiro; Tanaka, Hiroaki; Bandô, Yoshio; Fujii, H.; Nishigori, S.; Suzuki, Takashi; Fujita, Toshizo; Kido, G.

doi:10.1103/physrevb.50.623

Cited by 59 publications

(38 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found that the size of the pseudogap is well scaled with T K while its temperature evolution is dominated by another characteristic temperature T coh ͑, T K ͒. Comparing the present HR-PES results with reported magnetic/electrical properties [15,16] and the tunneling spectroscopy result [17] of these compounds, as well as previous optical/HR-PES results on other Kondo insulators [18][19][20], we discuss the physical nature of the pseudogap of Kondo insulators.…”

supporting

confidence: 76%

“…In this Letter, we report high-resolution photoemission spectroscopy (HR-PES) of CeRhAs and CeRhSb, which are isostructural and regarded as Kondo insulators with different T K 's [15,16]. We have performed a systematic temperature-dependent measurement and clearly observed a pseudogap at E F at low temperature as well as its evolution as a function of temperature.…”

mentioning

confidence: 95%

See 1 more Smart Citation

Spectral Evidence for Pseudogap Formation in Kondo Insulators CeRhAs and CeRhSb

et al. 1999

View full text Add to dashboard Cite

High-resolution photoemission spectroscopy has been performed on CeRhAs and CeRhSb to study the temperature-induced evolution of the "Kondo-insulator" gap. We have observed that a pseudogap opens at E F at low temperatures while it is gradually filled with increasing temperature. The size of the pseudogap is well scaled with the Kondo temperature ͑T K ͒ of each compound while the temperature evolution is dominated by another characteristic temperature T coh ͑, T K ͒. The results are qualitatively consistent with the theoretical prediction from the Anderson lattice model. [S0031-9007 (99)08535-X] PACS numbers: 75.30.Mb, 71.28. + d, 79.60.Bm Cerium (Ce) and ytterbium (Yb)-based compounds

show abstract

supporting

confidence: 76%

mentioning

confidence: 95%

Spectral Evidence for Pseudogap Formation in Kondo Insulators CeRhAs and CeRhSb

et al. 1999

View full text Add to dashboard Cite

show abstract

“…NMR measurements are consistent with an electronic state with a "V-shaped" component to the density of states [7]. These results, together with other transport properties [8][9][10][11] point to the formation of a new type of semimetal with an anisotropic hybridization gap.…”

supporting

confidence: 70%

Gap-Anisotropic Model for the Narrow-Gap Kondo Insulators

Moreno

Coleman

2000

Phys. Rev. Lett.

View full text Add to dashboard Cite

A theory is presented which accounts for the dynamical generation of a hybridization gap with nodes in the Kondo insulating materials CeNiSn and CeRhSb. We show that Hund's interactions acting on virtual 4f(2) configurations of the cerium ion can act to dynamically select the shape of the cerium ion by generating a Weiss field which couples to the shape of the ion. In low symmetry crystals where the external crystal fields are negligible, this process selects a nodal Kondo semimetal state as the lowest energy configuration.

show abstract

“…At around 2 GPa both gap energies vanish. Consequently, discrepancies between experimental results and the simple scenario based on c-f hybridization can be ascertained [36,[223][224][225][226][227].…”

Section: Cetx Compounds With Intermediate Valencementioning

confidence: 99%

Cerium intermetallics with TiNiSi-type structure

Janka

Niehaus

Pöttgen

et al. 2016

Zeitschrift Für Naturforschung B

View full text Add to dashboard Cite

Intermetallic compounds with the equiatomic composition CeTX that crystallize with the orthorhombic TiNiSi-type structure can be synthesized with electronrich transition metals (T) and X = Zn, Al, Ga, Si, Ge, Sn, As, Sb, and Bi. The present review focusses on the crystal chemistry and chemical bonding of these CeTX phases and on their physical properties, 119 Sn and 121 Sb Mössbauer spectra, high-pressure effects, hydrogenation reactions and the formation of solid solutions in order to elucidate structure-property relationships. This paper is the final one of a series of four reviews on equiatomic intermetallic cerium compounds [Part I

show abstract

Anisotropic physical properties of the Kondo semiconductor CeRhSb

Cited by 59 publications

References 14 publications

Spectral Evidence for Pseudogap Formation in Kondo Insulators CeRhAs and CeRhSb

Spectral Evidence for Pseudogap Formation in Kondo Insulators CeRhAs and CeRhSb

Gap-Anisotropic Model for the Narrow-Gap Kondo Insulators

Cerium intermetallics with TiNiSi-type structure

Contact Info

Product

Resources

About