Single crystal growth and electronic state of new compounds RPt2Cd20(R = La-Nd, Sm)

Hiroshi Doto, Yusuke Hirose, Fuminori Honda, Tetsuya Takeuchi, Yoshinori Haga, Rikio Settai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We succeeded in growing five new single crystalline compounds RPt2Cd20(R = La, Ce, Pr, Nd, and Sm) by the Cd self-flux method. These compounds are found to crystallize in the cubic CeCr2Al20-type crystal structure by the X-ray diffraction using single crystals. We measured the electrical resistivity, magnetic properties, and specific heat for all compounds. The resistivity for R = Ce, Nd, and Sm indicates an abrupt decrease, which might correspond to a magnetic transition. It is suggested that the ground state of CePt2Cd20is Γ7doublet from the magnetization measurement. The magnetization of PrPt2Cd20shows a metamagnetic behavior at 1.6 T in the paramagnetic state, which could be due to the crystalline electric field effect with non-Kramers Γ3doublet or Γ1singlet ground state. The contribution of optical phonon modes to the lattice specific heat is discussed in LaPt2Cd20.

Original languageEnglish
Pages (from-to)332-338
Number of pages7
JournalJournal of Alloys and Compounds
Volume693
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • CeCrAl-type structure
  • New rare earth intermetallic compound
  • RPtCd

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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