Study of hybridization gap in the Kondo insulator CeRhAs through inelastic neutron scattering

D. T. Adroja; J. G. Park; K. A. McEwen; K. Shigetoh; T. Sasakawa; T. Takabatake; J. Y. So

doi:10.1016/j.physb.2006.01.478

Study of hybridization gap in the Kondo insulator CeRhAs through inelastic neutron scattering

D. T. Adroja, J. G. Park, K. A. McEwen, K. Shigetoh, T. Sasakawa, T. Takabatake, J. Y. So

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We have carried out inelastic neutron scattering measurements on a Kondo insulator CeRhAs over a wide energy range. Our low-energy studies with an incident energy of E_i = 20 meV do not show any evidence of magnetic scattering below 20 meV. On the other hand, measurements done with E_i = 500 meV exhibit a spin gap of 150 meV. The spin gap energy of 150 meV we found appears to be consistent with the Kondo temperature of ∼ 1530 K estimated from bulk susceptibility.

Original language	English
Pages (from-to)	788-790
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	378-380
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2006.01.478
Publication status	Published - 1 May 2006
Externally published	Yes

Keywords

CeRhAs
Inelastic neutron scattering
Kondo insulator
Spin gap formation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2006.01.478

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title = "Study of hybridization gap in the Kondo insulator CeRhAs through inelastic neutron scattering",

abstract = "We have carried out inelastic neutron scattering measurements on a Kondo insulator CeRhAs over a wide energy range. Our low-energy studies with an incident energy of Ei = 20 meV do not show any evidence of magnetic scattering below 20 meV. On the other hand, measurements done with Ei = 500 meV exhibit a spin gap of 150 meV. The spin gap energy of 150 meV we found appears to be consistent with the Kondo temperature of ∼ 1530 K estimated from bulk susceptibility.",

keywords = "CeRhAs, Inelastic neutron scattering, Kondo insulator, Spin gap formation",

author = "Adroja, {D. T.} and Park, {J. G.} and McEwen, {K. A.} and K. Shigetoh and T. Sasakawa and T. Takabatake and So, {J. Y.}",

year = "2006",

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doi = "10.1016/j.physb.2006.01.478",

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T1 - Study of hybridization gap in the Kondo insulator CeRhAs through inelastic neutron scattering

AU - Adroja, D. T.

AU - Park, J. G.

AU - McEwen, K. A.

AU - Shigetoh, K.

AU - Sasakawa, T.

AU - Takabatake, T.

AU - So, J. Y.

PY - 2006/5/1

Y1 - 2006/5/1

N2 - We have carried out inelastic neutron scattering measurements on a Kondo insulator CeRhAs over a wide energy range. Our low-energy studies with an incident energy of Ei = 20 meV do not show any evidence of magnetic scattering below 20 meV. On the other hand, measurements done with Ei = 500 meV exhibit a spin gap of 150 meV. The spin gap energy of 150 meV we found appears to be consistent with the Kondo temperature of ∼ 1530 K estimated from bulk susceptibility.

AB - We have carried out inelastic neutron scattering measurements on a Kondo insulator CeRhAs over a wide energy range. Our low-energy studies with an incident energy of Ei = 20 meV do not show any evidence of magnetic scattering below 20 meV. On the other hand, measurements done with Ei = 500 meV exhibit a spin gap of 150 meV. The spin gap energy of 150 meV we found appears to be consistent with the Kondo temperature of ∼ 1530 K estimated from bulk susceptibility.

KW - CeRhAs

KW - Inelastic neutron scattering

KW - Kondo insulator

KW - Spin gap formation

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DO - 10.1016/j.physb.2006.01.478

M3 - Article

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SN - 0921-4526

VL - 378-380

SP - 788

EP - 790

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - SPEC. ISS.

ER -

Study of hybridization gap in the Kondo insulator CeRhAs through inelastic neutron scattering

Abstract

Keywords

ASJC Scopus subject areas

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