Multiplet splitting effects on core-level photoemission and inverse-photoemission spectra of uranium intermetallic compounds

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The present paper discusses the role of U 5f-5f exchange interaction (J) in the inverse photoemission spectrum (IPES) and the U 4f x-ray photoemission spectrum (XPS) of uranium intermetallic compounds. The origin of the broad main peak in the IPES of UPd3 and UPd2Al3, for instance, is ascribed to the exchange coupling effects of 5f electrons. In other words, whether the ground state is of high-spin or of low-spin is directly reflected in the width of the IPES. On the other hand, the interpretation for the U 4f photoemission spectrum is not so greatly influenced by J. The full-multiplet calculations are also performed for an U4+ ion for comparison.

Original languageEnglish
Pages (from-to)752-755
Number of pages4
JournalJournal of the Physical Society of Japan
Volume68
Issue number3
Publication statusPublished - Mar 1999

Fingerprint

uranium
intermetallics
photoelectric emission
fine structure
ground state
ions
electrons
x rays
interactions

Keywords

  • Impurity Anderson model
  • Inverse photoemission
  • Multiplet splitting
  • U 4f photoemission

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{53c4b95aa26b44b19dc6c39efc64be8d,
title = "Multiplet splitting effects on core-level photoemission and inverse-photoemission spectra of uranium intermetallic compounds",
abstract = "The present paper discusses the role of U 5f-5f exchange interaction (J) in the inverse photoemission spectrum (IPES) and the U 4f x-ray photoemission spectrum (XPS) of uranium intermetallic compounds. The origin of the broad main peak in the IPES of UPd3 and UPd2Al3, for instance, is ascribed to the exchange coupling effects of 5f electrons. In other words, whether the ground state is of high-spin or of low-spin is directly reflected in the width of the IPES. On the other hand, the interpretation for the U 4f photoemission spectrum is not so greatly influenced by J. The full-multiplet calculations are also performed for an U4+ ion for comparison.",
keywords = "Impurity Anderson model, Inverse photoemission, Multiplet splitting, U 4f photoemission",
author = "Kozo Okada",
year = "1999",
month = "3",
language = "English",
volume = "68",
pages = "752--755",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "3",

}

TY - JOUR

T1 - Multiplet splitting effects on core-level photoemission and inverse-photoemission spectra of uranium intermetallic compounds

AU - Okada, Kozo

PY - 1999/3

Y1 - 1999/3

N2 - The present paper discusses the role of U 5f-5f exchange interaction (J) in the inverse photoemission spectrum (IPES) and the U 4f x-ray photoemission spectrum (XPS) of uranium intermetallic compounds. The origin of the broad main peak in the IPES of UPd3 and UPd2Al3, for instance, is ascribed to the exchange coupling effects of 5f electrons. In other words, whether the ground state is of high-spin or of low-spin is directly reflected in the width of the IPES. On the other hand, the interpretation for the U 4f photoemission spectrum is not so greatly influenced by J. The full-multiplet calculations are also performed for an U4+ ion for comparison.

AB - The present paper discusses the role of U 5f-5f exchange interaction (J) in the inverse photoemission spectrum (IPES) and the U 4f x-ray photoemission spectrum (XPS) of uranium intermetallic compounds. The origin of the broad main peak in the IPES of UPd3 and UPd2Al3, for instance, is ascribed to the exchange coupling effects of 5f electrons. In other words, whether the ground state is of high-spin or of low-spin is directly reflected in the width of the IPES. On the other hand, the interpretation for the U 4f photoemission spectrum is not so greatly influenced by J. The full-multiplet calculations are also performed for an U4+ ion for comparison.

KW - Impurity Anderson model

KW - Inverse photoemission

KW - Multiplet splitting

KW - U 4f photoemission

UR - http://www.scopus.com/inward/record.url?scp=0033418082&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033418082&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0033418082

VL - 68

SP - 752

EP - 755

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 3

ER -