Magnetic ordering in ternary germanide Nd2CuGe6

D. X. Li, S. Nimori, Y. X. Li, K. Koyama, Y. Shiokawa

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

We have performed a systematic investigation on a well-annealed polycrystalline Nd2CuGe6 sample by measuring its AC and DC susceptibility χ(T), magnetization M(H), magnetic relaxation M(t), electrical resistivity ρ(T) and specific heat C(T). The sharp peak observed at about TN = 9.4 K in χAC(T), χDC(T) and C(T) curves, respectively, indicates the occurrence of an antiferromagnetic order, which is further confirmed by the sudden decrease in ρ(T) at the same temperature. In the magnetically ordered state, M(H) shows an evident metamagnetic transition. Moreover, the χDC(T) and M(t) measurements reveal evident irreversible magnetism and long-time magnetic relaxation effect below TN indicating the metastable characters of the magnetically ordered state. The formation of the metastable magnetic state cannot be explained as glass freezing of the neodymium magnetic moments in the Ce2CuGe6-type orthorhombic Nd2CuGe6 sample.

Original languageEnglish
Pages (from-to)122-126
Number of pages5
JournalJournal of Alloys and Compounds
Volume408-412
DOIs
Publication statusPublished - 2006 Feb 9
EventProceedings of the Rare Earths'04 in Nara, Japan -
Duration: 2004 Nov 72004 Nov 12

Keywords

  • Irreversible magnetism
  • Magnetic relaxation
  • Metamagnetism
  • NdCuGe
  • Susceptibility

ASJC Scopus subject areas

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

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