<SUP>140</SUP>Ce (←<SUP>140</SUP>La) Time-Differential Perturbed Angular Correlation Study of CeRu<SUB>2</SUB>Ge<SUB>2</SUB>

• Ohtomo Takashi

  Department of Physical Science, Graduate School of Engineering Science, Osaka University

• Nasu Saburo

  Department of Physical Science, Graduate School of Engineering Science, Osaka University

• Baba Koji

  Department of Physical Science, Graduate School of Engineering Science, Osaka University

• Morimoto Shotaro

  Department of Physical Science, Graduate School of Engineering Science, Osaka University

• Miyasaka Masahiro

  Department of Physical Science, Graduate School of Engineering Science, Osaka University

• \\={O}nuki Yoshichika

  Department of Physics, Graduate School of Science, Osaka University

• Kawase Yoichi

  Research Reactor Institute, Kyoto University

• Saito Tadashi

  Radioisotope Research Center, Osaka University

Bibliographic Information

Other Title

• 140Ce(←140La)Time-Differential Perturbed Angular Correlation Study of CeRu2Ge2
• 140Ce 140La Time Differential Perturbed Angular Correlation Study of CeRu2Ge2
• <SUP>140</SUP>Ce (&larr;<SUP>140</SUP>La) Time-Differential Perturbed Angular Correlation Study of CeRu<SUB>2</SUB>Ge<SUB>2</SUB>

Abstract

The hyperfine interaction at ¹⁴⁰Ce nucleus in CeRu₂Ge₂ has been investigated, using the ¹⁴⁰Ce Time-Differential Perturbed Angular Correlation (TDPAC) method. ¹⁴⁰Cs ions, which are fission products from ²³⁵U, have been implanted into a single crystal of CeRu₂Ge₂ at room temperature. ¹⁴⁰Cs decays to ¹⁴⁰Ce 4+ intermediate state through ¹⁴⁰Ba with the life-time of 12.752 days and ¹⁴⁰La with a life-time of 1.6781 days. TDPAC spectrum at 4.2 K clearly shows the existence of the magnetic perturbation, which is absent at room temperature. Larmor frequency observed at 4.2 K is 1.32(1) Grad/s corresponding to the hyperfine magnetic field of 24.2(2) T at ¹⁴⁰Ce nucleus. Magnetization measurements of CeRu₂Ge₂ performed by using the SQUID magnetometer revealed the magnetic moment of 1.848 μ_B which indicates that the hyperfine coupling constant of Ce is 13.1(3) T/μ_B.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 43 (7), 1480-1485, 2002

  The Japan Institute of Metals and Materials

Keywords

• <SUP>140</SUP>Ce time-differential perturbed angular correlation
• hyperfine magnetic field
• CeRu<SUB>2</SUB>Ge<SUB>2</SUB>
• heavy fermion
• isotope separator on-line
• cerium compound

Details

• CRID: 1390282679223515008
• NII Article ID: 130004451860
• NII Article ID: 10012324877
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.43.1480
• COI: 1:CAS:528:DC%2BD38Xmt1eqtL0%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 6240147
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6240147
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/43/7/43_7_1480/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed