Anisotropy of the Kondo insulator CeRu4Sn6

S. Paschen; H. Winkler; T. Nezu; M. Kriegisch; G. Hilscher; J. Custers; A. Prokofiev; A. Strydom

doi:10.1088/1742-6596/200/1/012156

Anisotropy of the Kondo insulator CeRu₄Sn₆

S. Paschen, H. Winkler, T. Nezu, M. Kriegisch, G. Hilscher, J. Custers, A. Prokofiev, A. Strydom

Physics

Vienna University of Technology

Research output: Contribution to journal › Conference article › peer-review

25 Citations (Scopus)

Abstract

The intermetallic compound CeRu₄Sn₆ has tentatively been classified as Kondo insulator. Its tetragonal crystal structure places it inbetween the archetypal Kondo insulators like YbB₁₂ or Ce ₃Bi₄Pt₃, which are cubic, and the orthorhombic "Kondo semimetals" CeNiSn and CeRhSb. It is of great interest to investigate possible anisotropies - or even nodes - of the Kondo insulating gap in CeRu₄Sn₆. We have succeeded, for the first time, to grow single crystals of this compound. Interestingly, we could not only reveal anisotropy between the tetragonal c direction and the tetragonal a-a plane but even within a quasi-cubic cell which happens to be formed in CeRu ₄Sn₆ because the length of the diagonal of the tetragonal plane c′ = √2a differs from c by only 0.2%.

Original language	English
Article number	012156
Journal	Journal of Physics: Conference Series
Volume	200
Issue number	SECTION 1
DOIs	https://doi.org/10.1088/1742-6596/200/1/012156
Publication status	Published - 2010

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/200/1/012156

Cite this

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title = "Anisotropy of the Kondo insulator CeRu4Sn6",

abstract = "The intermetallic compound CeRu4Sn6 has tentatively been classified as Kondo insulator. Its tetragonal crystal structure places it inbetween the archetypal Kondo insulators like YbB12 or Ce 3Bi4Pt3, which are cubic, and the orthorhombic {"}Kondo semimetals{"} CeNiSn and CeRhSb. It is of great interest to investigate possible anisotropies - or even nodes - of the Kondo insulating gap in CeRu4Sn6. We have succeeded, for the first time, to grow single crystals of this compound. Interestingly, we could not only reveal anisotropy between the tetragonal c direction and the tetragonal a-a plane but even within a quasi-cubic cell which happens to be formed in CeRu 4Sn6 because the length of the diagonal of the tetragonal plane c′ = √2a differs from c by only 0.2%.",

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T1 - Anisotropy of the Kondo insulator CeRu4Sn6

AU - Paschen, S.

AU - Winkler, H.

AU - Nezu, T.

AU - Kriegisch, M.

AU - Hilscher, G.

AU - Custers, J.

AU - Prokofiev, A.

AU - Strydom, A.

PY - 2010

Y1 - 2010

N2 - The intermetallic compound CeRu4Sn6 has tentatively been classified as Kondo insulator. Its tetragonal crystal structure places it inbetween the archetypal Kondo insulators like YbB12 or Ce 3Bi4Pt3, which are cubic, and the orthorhombic "Kondo semimetals" CeNiSn and CeRhSb. It is of great interest to investigate possible anisotropies - or even nodes - of the Kondo insulating gap in CeRu4Sn6. We have succeeded, for the first time, to grow single crystals of this compound. Interestingly, we could not only reveal anisotropy between the tetragonal c direction and the tetragonal a-a plane but even within a quasi-cubic cell which happens to be formed in CeRu 4Sn6 because the length of the diagonal of the tetragonal plane c′ = √2a differs from c by only 0.2%.

AB - The intermetallic compound CeRu4Sn6 has tentatively been classified as Kondo insulator. Its tetragonal crystal structure places it inbetween the archetypal Kondo insulators like YbB12 or Ce 3Bi4Pt3, which are cubic, and the orthorhombic "Kondo semimetals" CeNiSn and CeRhSb. It is of great interest to investigate possible anisotropies - or even nodes - of the Kondo insulating gap in CeRu4Sn6. We have succeeded, for the first time, to grow single crystals of this compound. Interestingly, we could not only reveal anisotropy between the tetragonal c direction and the tetragonal a-a plane but even within a quasi-cubic cell which happens to be formed in CeRu 4Sn6 because the length of the diagonal of the tetragonal plane c′ = √2a differs from c by only 0.2%.

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Anisotropy of the Kondo insulator CeRu₄Sn₆

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