4f-electron localization in CexLa1-xMIn5 with M = Co, Rh, or Ir

Harrison N., Alver U., Goodrich R., Vekhter I., Sarrao J., Pagliuso P., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.93, sa.18, 2004 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 93 Sayı: 18
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1103/physrevlett.93.186405
  • Dergi Adı: PHYSICAL REVIEW LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Karadeniz Teknik Üniversitesi Adresli: Hayır

Özet

de Haas-van Alphen measurements on CexLa1-xMIn5 yield contrasting types of behavior that depend on whether M = Co and Ir or M = Rh. A stronger x-dependent scattering in the case of M = Co and Ir is suggestive of a stronger relative coupling, J/W, of the conduction electrons to the 4f electrons, which would then account for the development of a heavy composite Fermi-liquid state as x --> 1. The failure of a composite Fermi-liquid state to form for any x in the case of M = Rh is shown to be inconsistent with theoretical models that propose antiferromagnetism to result from spin-density-wave formation.