Sm 4f electronic state of heavy fermion compound SmOs4Sb 12 by theory of high-energy spectroscopy

Yusuke Nanba, Masaichiro Mizumaki, Kozo Okada

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We calculate a set of high-energy spectra, such as the Sm 3d X-ray absorption spectrum and X-ray photoemission spectrum using a configuration-interaction full-multiplet theory to investigate the Sm 4f electronic state of SmOs4Sb12. In the study of SmOs 4Sb12 performed so far, the ground state was expressed by a linear combination of the f5 electron configuration and its charge transfer (CT) states, which indicates that the local symmetry is J = 5/2. In contrast, the present study shows that the ground state expressed by the f 6 electron configuration and its CT states can also reproduce the experiments well. We note that the f6-based ground state, the local symmetry of which is J = 0, is of great advantage for discussing the experimental result that the heavy fermion state of SmOs4Sb 12 is insensitive to the applied magnetic field. We predict that the f6-based ground state will be justified by the Sm 3d X-ray magnetic circular dichroism.

Original languageEnglish
Article number104712
JournalJournal of the Physical Society of Japan
Volume82
Issue number10
DOIs
Publication statusPublished - Oct 2013

Fingerprint

fermions
ground state
electronics
spectroscopy
charge transfer
x rays
energy
symmetry
configurations
configuration interaction
dichroism
energy spectra
electrons
photoelectric emission
fine structure
absorption spectra
magnetic fields

Keywords

  • Mixed valence state
  • Nonmagnetic state
  • SmOsSb
  • X-ray absorption spectroscopy
  • X-ray photoemission spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sm 4f electronic state of heavy fermion compound SmOs4Sb 12 by theory of high-energy spectroscopy. / Nanba, Yusuke; Mizumaki, Masaichiro; Okada, Kozo.

In: Journal of the Physical Society of Japan, Vol. 82, No. 10, 104712, 10.2013.

Research output: Contribution to journalArticle

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N2 - We calculate a set of high-energy spectra, such as the Sm 3d X-ray absorption spectrum and X-ray photoemission spectrum using a configuration-interaction full-multiplet theory to investigate the Sm 4f electronic state of SmOs4Sb12. In the study of SmOs 4Sb12 performed so far, the ground state was expressed by a linear combination of the f5 electron configuration and its charge transfer (CT) states, which indicates that the local symmetry is J = 5/2. In contrast, the present study shows that the ground state expressed by the f 6 electron configuration and its CT states can also reproduce the experiments well. We note that the f6-based ground state, the local symmetry of which is J = 0, is of great advantage for discussing the experimental result that the heavy fermion state of SmOs4Sb 12 is insensitive to the applied magnetic field. We predict that the f6-based ground state will be justified by the Sm 3d X-ray magnetic circular dichroism.

AB - We calculate a set of high-energy spectra, such as the Sm 3d X-ray absorption spectrum and X-ray photoemission spectrum using a configuration-interaction full-multiplet theory to investigate the Sm 4f electronic state of SmOs4Sb12. In the study of SmOs 4Sb12 performed so far, the ground state was expressed by a linear combination of the f5 electron configuration and its charge transfer (CT) states, which indicates that the local symmetry is J = 5/2. In contrast, the present study shows that the ground state expressed by the f 6 electron configuration and its CT states can also reproduce the experiments well. We note that the f6-based ground state, the local symmetry of which is J = 0, is of great advantage for discussing the experimental result that the heavy fermion state of SmOs4Sb 12 is insensitive to the applied magnetic field. We predict that the f6-based ground state will be justified by the Sm 3d X-ray magnetic circular dichroism.

KW - Mixed valence state

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