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

doi:10.1143/JPSJ.78.114706

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

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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 0.70μ_B/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 language	English
Article number	114706
Journal	journal of the physical society of japan
Volume	78
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.78.114706
Publication status	Published - Nov 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1143/JPSJ.78.114706

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

abstract = "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 N{\'e}el 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 N{\'e}el temperature becomes zero, is 7-8 GPa at which the heavy fermion state is realized. Superconductivity was, however, not observed experimentally.",

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

year = "2009",

month = nov,

doi = "10.1143/JPSJ.78.114706",

language = "English",

volume = "78",

journal = "journal of the physical society of japan",

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T1 - Electronic and magnetic properties of rare earth compounds RPt2 Ge2 (R

T2 - La-Ho)

AU - Tonohiro, Chie

AU - Nakano, Yasunori

AU - Honda, Fuminori

AU - Yamada, Tsutomu

AU - Takeuchi, Tetsuya

AU - Sugiyama, Kiyohiro

AU - Hagiwara, Masayuki

AU - Kindo, Koichi

AU - Matsuda, Tatsuma D.

AU - Haga, Yoshinori

AU - Hedo, Masato

AU - Uwatoko, Yoshiya

AU - Settai, Rikio

AU - Onuki, Yoshichika

PY - 2009/11

Y1 - 2009/11

N2 - 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.

AB - 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.

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ER -

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

Abstract

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