CeIr3Ge7: A local moment antiferromagnetic metal with extremely low ordering temperature

Binod K. Rai; Jacintha Banda; Macy Stavinoha; R. Borth; D. J. Jang; Katherine A. Benavides; D. A. Sokolov; Julia Y. Chan; M. Nicklas; Manuel Brando; C. L. Huang; E. Morosan

doi:10.1103/PhysRevB.98.195119

CeIr3Ge7: A local moment antiferromagnetic metal with extremely low ordering temperature

Binod K. Rai
, Jacintha Banda
, Macy Stavinoha
, R. Borth
, D. J. Jang
, Katherine A. Benavides
, D. A. Sokolov
, Julia Y. Chan
, M. Nicklas
, Manuel Brando
, C. L. Huang
, E. Morosan

Department of Physics

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

11 Citations (Scopus)

Abstract

CeIr3Ge7 is an antiferromagnetic metal with a remarkably low ordering temperature TN=0.63K, while most Ce-based magnets order between 2 and 15 K. Thermodynamic and transport properties as a function of magnetic field or pressure do not show signatures of Kondo correlations, interaction competition, or frustration, as had been observed in a few antiferromagnets with comparably low or lower TN. The averaged Weiss temperature measured below 10 K is comparable to TN, suggesting that the Ruderman-Kittel-Kasuya-Yosida exchange coupling is very weak in this material. The unusually low TN in CeIr3Ge7 can therefore be attributed to the large Ce-Ce bond length of about 5.7 Å, which is about 1.5 Å larger than in the most Ce-based intermetallic systems.

Original language	English
Article number	195119
Journal	Physical Review B
Volume	98
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.98.195119
Publication status	Published - 2018 Nov 16

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.98.195119

Cite this

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title = "CeIr3Ge7: A local moment antiferromagnetic metal with extremely low ordering temperature",

abstract = "CeIr3Ge7 is an antiferromagnetic metal with a remarkably low ordering temperature TN=0.63K, while most Ce-based magnets order between 2 and 15 K. Thermodynamic and transport properties as a function of magnetic field or pressure do not show signatures of Kondo correlations, interaction competition, or frustration, as had been observed in a few antiferromagnets with comparably low or lower TN. The averaged Weiss temperature measured below 10 K is comparable to TN, suggesting that the Ruderman-Kittel-Kasuya-Yosida exchange coupling is very weak in this material. The unusually low TN in CeIr3Ge7 can therefore be attributed to the large Ce-Ce bond length of about 5.7 {\AA}, which is about 1.5 {\AA} larger than in the most Ce-based intermetallic systems.",

author = "Rai, \{Binod K.\} and Jacintha Banda and Macy Stavinoha and R. Borth and Jang, \{D. J.\} and Benavides, \{Katherine A.\} and Sokolov, \{D. A.\} and Chan, \{Julia Y.\} and M. Nicklas and Manuel Brando and Huang, \{C. L.\} and E. Morosan",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

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doi = "10.1103/PhysRevB.98.195119",

language = "English",

volume = "98",

journal = "Physical Review B",

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TY - JOUR

T1 - CeIr3Ge7

T2 - A local moment antiferromagnetic metal with extremely low ordering temperature

AU - Rai, Binod K.

AU - Banda, Jacintha

AU - Stavinoha, Macy

AU - Borth, R.

AU - Jang, D. J.

AU - Benavides, Katherine A.

AU - Sokolov, D. A.

AU - Chan, Julia Y.

AU - Nicklas, M.

AU - Brando, Manuel

AU - Huang, C. L.

AU - Morosan, E.

PY - 2018/11/16

Y1 - 2018/11/16

N2 - CeIr3Ge7 is an antiferromagnetic metal with a remarkably low ordering temperature TN=0.63K, while most Ce-based magnets order between 2 and 15 K. Thermodynamic and transport properties as a function of magnetic field or pressure do not show signatures of Kondo correlations, interaction competition, or frustration, as had been observed in a few antiferromagnets with comparably low or lower TN. The averaged Weiss temperature measured below 10 K is comparable to TN, suggesting that the Ruderman-Kittel-Kasuya-Yosida exchange coupling is very weak in this material. The unusually low TN in CeIr3Ge7 can therefore be attributed to the large Ce-Ce bond length of about 5.7 Å, which is about 1.5 Å larger than in the most Ce-based intermetallic systems.

AB - CeIr3Ge7 is an antiferromagnetic metal with a remarkably low ordering temperature TN=0.63K, while most Ce-based magnets order between 2 and 15 K. Thermodynamic and transport properties as a function of magnetic field or pressure do not show signatures of Kondo correlations, interaction competition, or frustration, as had been observed in a few antiferromagnets with comparably low or lower TN. The averaged Weiss temperature measured below 10 K is comparable to TN, suggesting that the Ruderman-Kittel-Kasuya-Yosida exchange coupling is very weak in this material. The unusually low TN in CeIr3Ge7 can therefore be attributed to the large Ce-Ce bond length of about 5.7 Å, which is about 1.5 Å larger than in the most Ce-based intermetallic systems.

UR - https://www.scopus.com/pages/publications/85057232218

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ER -

CeIr3Ge7: A local moment antiferromagnetic metal with extremely low ordering temperature

Abstract

All Science Journal Classification (ASJC) codes

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