Electronic structures of rare-earth ternary compounds CePtSb and LaPtSb

K. H. Kim; M. H. Jung; Y. S. Kwon; H. Suzuki; M. Kasaya; K. Katoh; T. Takabatake

doi:10.1016/S0921-4526(96)00576-5

Electronic structures of rare-earth ternary compounds CePtSb and LaPtSb

K. H. Kim, M. H. Jung, Y. S. Kwon, H. Suzuki, M. Kasaya, K. Katoh, T. Takabatake

Department of Physics and Chemistry

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

2 Scopus citations

Abstract

The optical conductivity spectra were obtained from a single crystal with ab-plane and ac-plane of CePtSb and polycrystals of CePtSb and LaPtSb. The carrier concentrations in ac-plane and ab-plane were estimated to be 0.042 and 0.182 per molecule from intraband transition, respectively, which is consistent with the result of electrical resistivity. From analysis of interband transitions, the 4d state of Pt-ion in ac-plane lies at about 1.1 eV lower energy than that in ab-plane while the 4f state of Ce-ion lies about 2.8 eV higher energy. The energy shift of these band causes the anisotropy of carrier concentration.

Original language	English
Pages (from-to)	155-158
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	230-232
DOIs	https://doi.org/10.1016/S0921-4526(96)00576-5
State	Published - Feb 1997

Keywords

CePtSb
LaPtSb
Optical conductivity

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10.1016/S0921-4526(96)00576-5

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@article{57101f4929af419fad5f3c30bb8d1405,

title = "Electronic structures of rare-earth ternary compounds CePtSb and LaPtSb",

abstract = "The optical conductivity spectra were obtained from a single crystal with ab-plane and ac-plane of CePtSb and polycrystals of CePtSb and LaPtSb. The carrier concentrations in ac-plane and ab-plane were estimated to be 0.042 and 0.182 per molecule from intraband transition, respectively, which is consistent with the result of electrical resistivity. From analysis of interband transitions, the 4d state of Pt-ion in ac-plane lies at about 1.1 eV lower energy than that in ab-plane while the 4f state of Ce-ion lies about 2.8 eV higher energy. The energy shift of these band causes the anisotropy of carrier concentration.",

keywords = "CePtSb, LaPtSb, Optical conductivity",

author = "Kim, \{K. H.\} and Jung, \{M. H.\} and Kwon, \{Y. S.\} and H. Suzuki and M. Kasaya and K. Katoh and T. Takabatake",

year = "1997",

month = feb,

doi = "10.1016/S0921-4526(96)00576-5",

language = "English",

volume = "230-232",

pages = "155--158",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Electronic structures of rare-earth ternary compounds CePtSb and LaPtSb

AU - Kim, K. H.

AU - Jung, M. H.

AU - Kwon, Y. S.

AU - Suzuki, H.

AU - Kasaya, M.

AU - Katoh, K.

AU - Takabatake, T.

PY - 1997/2

Y1 - 1997/2

N2 - The optical conductivity spectra were obtained from a single crystal with ab-plane and ac-plane of CePtSb and polycrystals of CePtSb and LaPtSb. The carrier concentrations in ac-plane and ab-plane were estimated to be 0.042 and 0.182 per molecule from intraband transition, respectively, which is consistent with the result of electrical resistivity. From analysis of interband transitions, the 4d state of Pt-ion in ac-plane lies at about 1.1 eV lower energy than that in ab-plane while the 4f state of Ce-ion lies about 2.8 eV higher energy. The energy shift of these band causes the anisotropy of carrier concentration.

AB - The optical conductivity spectra were obtained from a single crystal with ab-plane and ac-plane of CePtSb and polycrystals of CePtSb and LaPtSb. The carrier concentrations in ac-plane and ab-plane were estimated to be 0.042 and 0.182 per molecule from intraband transition, respectively, which is consistent with the result of electrical resistivity. From analysis of interband transitions, the 4d state of Pt-ion in ac-plane lies at about 1.1 eV lower energy than that in ab-plane while the 4f state of Ce-ion lies about 2.8 eV higher energy. The energy shift of these band causes the anisotropy of carrier concentration.

KW - CePtSb

KW - LaPtSb

KW - Optical conductivity

UR - https://www.scopus.com/pages/publications/0031072020

U2 - 10.1016/S0921-4526(96)00576-5

DO - 10.1016/S0921-4526(96)00576-5

M3 - Article

AN - SCOPUS:0031072020

SN - 0921-4526

VL - 230-232

SP - 155

EP - 158

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Electronic structures of rare-earth ternary compounds CePtSb and LaPtSb

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Keywords

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