Low-Temperature magnetic orderings and fermi surface properties of LaCd11, CeCd11, and PrCd11 with a caged crystal structure

Shingo Yoshiuchi, Tetsuya Takeuchi, Masahiro Ohya, Keisuke Katayama, Masaki Matsushita, Naohisa Yoshitani, Naoto Nishimura, Hisashi Ota, Naoyuki Tateiwa, Etsuji Yamamoto, Yoshinori Haga, Hiroshi Yamagami, Fuminori Honda, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We succeeded in growing single crystals of cage-structure compounds RCd11 (R: La, Ce, and Pr) and precisely studied their low-temperature magnetic and electronic properties by measuring electrical resistivity, magnetic susceptibility, magnetization, specific heat, and the de Haas-van Alphen (dHvA) effect. We found antiferromagnetic ordering at 0.44 and 0.39K in CeCd11 and PrCd11, respectively, and clarified the magnetic phase diagrams of the compounds. In addition, low-lying crystalline electric field (CEF) schemes were proposed from the specific heat results of both compounds. From the present study, the antiferromagnetic ordering in PrCd11 is found to be of the exchange-induced type with a singlet ground state. From the dHvA experiment, we detected small dHvA branches ranging from 7 × 105 to 2 × 107 Oe, which correspond to small Fermi surfaces. This is mainly due to a small Brillouin zone based on a large unit cell. Moreover, the dHvA frequencies and cyclotron masses are approximately the same among RCd11, revealing a localized character of 4f electrons in CeCd11 and PrCd11.

Original languageEnglish
Article number044601
Journaljournal of the physical society of japan
Volume79
Issue number4
DOIs
Publication statusPublished - 2010 Apr
Externally publishedYes

Keywords

  • CeCd11
  • DHvA
  • LaCd11
  • Magnetic properties
  • PrCd11
  • Singlet ground state

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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