Electronic and magnetic properties of rare earth compounds RPt2 Ge2 (R: La-Ho)

Chie Tonohiro, Yasunori Nakano, Fuminori Honda, Tsutomu Yamada, Tetsuya Takeuchi, Kiyohiro Sugiyama, Masayuki Hagiwara, Koichi Kindo, Tatsuma D. Matsuda, Yoshinori Haga, Masato Hedo, Yoshiya Uwatoko, Rikio Settai, Yoshichika Onuki

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2 Citations (Scopus)


We succeeded in growing the single crystals of RPt2Ge 2 (R: La-Ho) with the monoclinic LaPt2Ge2- type structure. Most of RPt2Ge2 compounds order antiferromagnetically, approximately following the de Gennes scaling. Among them, CePt2Ge2 with a Néel temperature T N1 - 2.4 K indicates a change of the magnetic structure below T N2 - 1.8 K, with an ordered moment of 0.70μB/Ce. The pressure experiment was also carried out for CePt2Ge2 by measuring the electrical resistivity. The critical pressure, where the Néel temperature becomes zero, is 7-8 GPa at which the heavy fermion state is realized. Superconductivity was, however, not observed experimentally.

Original languageEnglish
Article number114706
Journaljournal of the physical society of japan
Issue number11
Publication statusPublished - Nov 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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