High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb)

Takeshi Iwasaki; Shigemasa Suga; Shin Imada; Akira Sekiyama; Takayuki Muro; Shigenori Ueda; Masahiko Saeki; Hideyuki Harada; Tomohiro Matsushita; Hiroyoshi Ishii; Osamu Sakai; Ryu Takayama; Takashi Suzuki; Motoki Akuura; Tamio Oguchi; Kenichi Katoh; Akira Ochiai

doi:10.1143/JPSJ.68.1716

High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb)

Takeshi Iwasaki, Shigemasa Suga, Shin Imada, Akira Sekiyama, Takayuki Muro, Shigenori Ueda, Masahiko Saeki, Hideyuki Harada, Tomohiro Matsushita, Hiroyoshi Ishii, Osamu Sakai, Ryu Takayama, Takashi Suzuki, Motoki Akuura, Tamio Oguchi, Kenichi Katoh, Akira Ochiai

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

4 Citations (Scopus)

Abstract

We have studied the electronic structures of ternary Ce compounds CePdX (X=As, Sb) by means of high resolution 4d-4f resonance photoemission spectroscopy. In the Ce 4f spectra, the relative intensity ratios between the well-and poorly-screened peaks are appreciably different between these materials, while the spectra in the vicinity of the Fermi level have similar features with two shoulders split by the spin-orbit splitting. We have analyzed the experimental line-shapes of the Ce 4f spectra with using the non-crossing approximation calculation within the Anderson impurity model. It is found that the spectral difference originates from the differences of the energy positions of the valence-band and the bare Ce 4f level as well as their mutual hybridization strength.

Original language	English
Pages (from-to)	1716-1724
Number of pages	9
Journal	journal of the physical society of japan
Volume	68
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.68.1716
Publication status	Published - 1999 May
Externally published	Yes

Keywords

Ce 4f states
High-resolution
Hybridization
NCA calculation
Resonance photoemission
Valence-band

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.68.1716

Cite this

Iwasaki, T., Suga, S., Imada, S., Sekiyama, A., Muro, T., Ueda, S., Saeki, M., Harada, H., Matsushita, T., Ishii, H., Sakai, O., Takayama, R., Suzuki, T., Akuura, M., Oguchi, T., Katoh, K., & Ochiai, A. (1999). High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb). journal of the physical society of japan, 68(5), 1716-1724. https://doi.org/10.1143/JPSJ.68.1716

Iwasaki, T, Suga, S, Imada, S, Sekiyama, A, Muro, T, Ueda, S, Saeki, M, Harada, H, Matsushita, T, Ishii, H, Sakai, O, Takayama, R, Suzuki, T, Akuura, M, Oguchi, T, Katoh, K & Ochiai, A 1999, 'High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb)', journal of the physical society of japan, vol. 68, no. 5, pp. 1716-1724. https://doi.org/10.1143/JPSJ.68.1716

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abstract = "We have studied the electronic structures of ternary Ce compounds CePdX (X=As, Sb) by means of high resolution 4d-4f resonance photoemission spectroscopy. In the Ce 4f spectra, the relative intensity ratios between the well-and poorly-screened peaks are appreciably different between these materials, while the spectra in the vicinity of the Fermi level have similar features with two shoulders split by the spin-orbit splitting. We have analyzed the experimental line-shapes of the Ce 4f spectra with using the non-crossing approximation calculation within the Anderson impurity model. It is found that the spectral difference originates from the differences of the energy positions of the valence-band and the bare Ce 4f level as well as their mutual hybridization strength.",

keywords = "Ce 4f states, High-resolution, Hybridization, NCA calculation, Resonance photoemission, Valence-band",

author = "Takeshi Iwasaki and Shigemasa Suga and Shin Imada and Akira Sekiyama and Takayuki Muro and Shigenori Ueda and Masahiko Saeki and Hideyuki Harada and Tomohiro Matsushita and Hiroyoshi Ishii and Osamu Sakai and Ryu Takayama and Takashi Suzuki and Motoki Akuura and Tamio Oguchi and Kenichi Katoh and Akira Ochiai",

year = "1999",

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doi = "10.1143/JPSJ.68.1716",

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AU - Iwasaki, Takeshi

AU - Suga, Shigemasa

AU - Imada, Shin

AU - Sekiyama, Akira

AU - Muro, Takayuki

AU - Ueda, Shigenori

AU - Saeki, Masahiko

AU - Harada, Hideyuki

AU - Matsushita, Tomohiro

AU - Ishii, Hiroyoshi

AU - Sakai, Osamu

AU - Takayama, Ryu

AU - Suzuki, Takashi

AU - Akuura, Motoki

AU - Oguchi, Tamio

AU - Katoh, Kenichi

AU - Ochiai, Akira

PY - 1999/5

Y1 - 1999/5

N2 - We have studied the electronic structures of ternary Ce compounds CePdX (X=As, Sb) by means of high resolution 4d-4f resonance photoemission spectroscopy. In the Ce 4f spectra, the relative intensity ratios between the well-and poorly-screened peaks are appreciably different between these materials, while the spectra in the vicinity of the Fermi level have similar features with two shoulders split by the spin-orbit splitting. We have analyzed the experimental line-shapes of the Ce 4f spectra with using the non-crossing approximation calculation within the Anderson impurity model. It is found that the spectral difference originates from the differences of the energy positions of the valence-band and the bare Ce 4f level as well as their mutual hybridization strength.

AB - We have studied the electronic structures of ternary Ce compounds CePdX (X=As, Sb) by means of high resolution 4d-4f resonance photoemission spectroscopy. In the Ce 4f spectra, the relative intensity ratios between the well-and poorly-screened peaks are appreciably different between these materials, while the spectra in the vicinity of the Fermi level have similar features with two shoulders split by the spin-orbit splitting. We have analyzed the experimental line-shapes of the Ce 4f spectra with using the non-crossing approximation calculation within the Anderson impurity model. It is found that the spectral difference originates from the differences of the energy positions of the valence-band and the bare Ce 4f level as well as their mutual hybridization strength.

KW - Ce 4f states

KW - High-resolution

KW - Hybridization

KW - NCA calculation

KW - Resonance photoemission

KW - Valence-band

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High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb)

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Keywords

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