Electronic states of Sm4As3 and Sm4Bi3 studied with photoemission spectroscopy

S. Suga; A. Sekiyama; S. Imada; T. Suzuki; H. Aoki; A. Ochiai

doi:10.1016/S0921-4526(99)01155-2

Electronic states of Sm₄As₃ and Sm₄Bi₃ studied with photoemission spectroscopy

S. Suga, A. Sekiyama, S. Imada, T. Suzuki, H. Aoki, A. Ochiai

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

7 Citations (Scopus)

Abstract

Sm₄As₃ is a Kondo material with a ferromagnetic phase transition at T_c = 160 K. Sm₄Bi₃ is a valence fluctuation material with a charge ordering below 260 K. Their electronic structures are studied by X-ray photoemission (XPS) and high-resolution 4d-4f resonance photoemission spectroscopy. From the kinetic energy dependence of the spectra, the contribution of the surface component is estimated and the bulk electronic states are discussed. Core absorption magnetic circular dichroism (MCD) is measured for Sm₄As₃ below T_c. 2S_z is found to be larger than L_z in Sm₄As₃.

Original language	English
Pages (from-to)	158-160
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	281-282
DOIs	https://doi.org/10.1016/S0921-4526(99)01155-2
Publication status	Published - 2000 Jun 1
Externally published	Yes
Event	Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn Duration: 1999 Aug 24 → 1999 Aug 28

ASJC Scopus subject areas

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

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10.1016/S0921-4526(99)01155-2

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title = "Electronic states of Sm4As3 and Sm4Bi3 studied with photoemission spectroscopy",

abstract = "Sm4As3 is a Kondo material with a ferromagnetic phase transition at Tc = 160 K. Sm4Bi3 is a valence fluctuation material with a charge ordering below 260 K. Their electronic structures are studied by X-ray photoemission (XPS) and high-resolution 4d-4f resonance photoemission spectroscopy. From the kinetic energy dependence of the spectra, the contribution of the surface component is estimated and the bulk electronic states are discussed. Core absorption magnetic circular dichroism (MCD) is measured for Sm4As3 below Tc. 2Sz is found to be larger than Lz in Sm4As3.",

author = "S. Suga and A. Sekiyama and S. Imada and T. Suzuki and H. Aoki and A. Ochiai",

note = "Funding Information: We acknowledge Dr. A. Kimura, Dr. T. Muro, Mr. A. Saeki and Mr. H. Harada for their partial collaboration in the present work. The work was supported by the Grant in Aid for COE Research(10CE2004) from the Ministry of Education, Science Sports and Culture, Japan.; Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) ; Conference date: 24-08-1999 Through 28-08-1999",

year = "2000",

month = jun,

day = "1",

doi = "10.1016/S0921-4526(99)01155-2",

language = "English",

volume = "281-282",

pages = "158--160",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

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TY - JOUR

T1 - Electronic states of Sm4As3 and Sm4Bi3 studied with photoemission spectroscopy

AU - Suga, S.

AU - Sekiyama, A.

AU - Imada, S.

AU - Suzuki, T.

AU - Aoki, H.

AU - Ochiai, A.

N1 - Funding Information: We acknowledge Dr. A. Kimura, Dr. T. Muro, Mr. A. Saeki and Mr. H. Harada for their partial collaboration in the present work. The work was supported by the Grant in Aid for COE Research(10CE2004) from the Ministry of Education, Science Sports and Culture, Japan.

PY - 2000/6/1

Y1 - 2000/6/1

N2 - Sm4As3 is a Kondo material with a ferromagnetic phase transition at Tc = 160 K. Sm4Bi3 is a valence fluctuation material with a charge ordering below 260 K. Their electronic structures are studied by X-ray photoemission (XPS) and high-resolution 4d-4f resonance photoemission spectroscopy. From the kinetic energy dependence of the spectra, the contribution of the surface component is estimated and the bulk electronic states are discussed. Core absorption magnetic circular dichroism (MCD) is measured for Sm4As3 below Tc. 2Sz is found to be larger than Lz in Sm4As3.

AB - Sm4As3 is a Kondo material with a ferromagnetic phase transition at Tc = 160 K. Sm4Bi3 is a valence fluctuation material with a charge ordering below 260 K. Their electronic structures are studied by X-ray photoemission (XPS) and high-resolution 4d-4f resonance photoemission spectroscopy. From the kinetic energy dependence of the spectra, the contribution of the surface component is estimated and the bulk electronic states are discussed. Core absorption magnetic circular dichroism (MCD) is measured for Sm4As3 below Tc. 2Sz is found to be larger than Lz in Sm4As3.

UR - http://www.scopus.com/inward/record.url?scp=0033871349&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033871349&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(99)01155-2

DO - 10.1016/S0921-4526(99)01155-2

M3 - Conference article

AN - SCOPUS:0033871349

VL - 281-282

SP - 158

EP - 160

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

T2 - Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99)

Y2 - 24 August 1999 through 28 August 1999

ER -

Electronic states of Sm₄As₃ and Sm₄Bi₃ studied with photoemission spectroscopy

Abstract

ASJC Scopus subject areas

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