Crystal structure in quadrupolar kondo candidate PrTR2Al20 (Tr = Ti and V)

Daisuke Okuyama; Masaki Tsujimoto; Hajime Sagayama; Yasuyuki Shimura; Akito Sakai; Atsushi Magata; Satoru Nakatsuji; Taku J. Sato

doi:10.7566/JPSJ.88.015001

Crystal structure in quadrupolar kondo candidate PrTR₂Al₂₀ (Tr = Ti and V)

Daisuke Okuyama, Masaki Tsujimoto, Hajime Sagayama, Yasuyuki Shimura, Akito Sakai, Atsushi Magata, Satoru Nakatsuji, Taku J. Sato

IMRAM - Division of Inorganic Material Research

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

8 Citations (Scopus)

Abstract

We have performed the crystal structure analyses of PrTr₂Al₂₀ (Tr = Ti and V). From the anisotropic thermal ellipsoids and the temperature dependence of the lattice constant, it is clarified that the thermal vibration predominantly propagates through the Tr–Al framework. The Pr–Al cage, especially for PrV₂Al₂₀, is anisotropically deformed from a sphere; this modifies the crystalline-electric-field levels of Pr³⁺. This information would provide a clue to understand the anomalous properties in PrTr₂Al₂₀.

Original language	English
Article number	015001
Journal	Journal of the Physical Society of Japan
Volume	88
Issue number	1
DOIs	https://doi.org/10.7566/JPSJ.88.015001
Publication status	Published - 2019

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title = "Crystal structure in quadrupolar kondo candidate PrTR2Al20 (Tr = Ti and V)",

abstract = "We have performed the crystal structure analyses of PrTr2Al20 (Tr = Ti and V). From the anisotropic thermal ellipsoids and the temperature dependence of the lattice constant, it is clarified that the thermal vibration predominantly propagates through the Tr–Al framework. The Pr–Al cage, especially for PrV2Al20, is anisotropically deformed from a sphere; this modifies the crystalline-electric-field levels of Pr3+. This information would provide a clue to understand the anomalous properties in PrTr2Al20.",

author = "Daisuke Okuyama and Masaki Tsujimoto and Hajime Sagayama and Yasuyuki Shimura and Akito Sakai and Atsushi Magata and Satoru Nakatsuji and Sato, {Taku J.}",

note = "Funding Information: The authors thank T. Matsumura, Y. Nambu, K. Yamauchi, and T. Oguchi for the fruitful discussions. This work was in part supported by CREST (JPMJCR15Q5, JPMJCR18T3), JST; KAKENHI (Nos. 15H05882, 15H05883, 16H02209, 17K14327, 17K18744, and 26103002), MEXT; and CORE lab of “Five-star Alliance” in “NJRC Mater. & Dev.”. The synchrotron X-ray diffraction was performed with the approval of the PF Program Advisory Committee (No. 2016G143). Publisher Copyright: {\textcopyright}2019 The Physical Society of Japan.",

year = "2019",

doi = "10.7566/JPSJ.88.015001",

language = "English",

volume = "88",

journal = "Journal of the Physical Society of Japan",

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publisher = "The Physical Society of Japan",

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TY - JOUR

T1 - Crystal structure in quadrupolar kondo candidate PrTR2Al20 (Tr = Ti and V)

AU - Okuyama, Daisuke

AU - Tsujimoto, Masaki

AU - Sagayama, Hajime

AU - Shimura, Yasuyuki

AU - Sakai, Akito

AU - Magata, Atsushi

AU - Nakatsuji, Satoru

AU - Sato, Taku J.

N1 - Funding Information: The authors thank T. Matsumura, Y. Nambu, K. Yamauchi, and T. Oguchi for the fruitful discussions. This work was in part supported by CREST (JPMJCR15Q5, JPMJCR18T3), JST; KAKENHI (Nos. 15H05882, 15H05883, 16H02209, 17K14327, 17K18744, and 26103002), MEXT; and CORE lab of “Five-star Alliance” in “NJRC Mater. & Dev.”. The synchrotron X-ray diffraction was performed with the approval of the PF Program Advisory Committee (No. 2016G143). Publisher Copyright: ©2019 The Physical Society of Japan.

PY - 2019

Y1 - 2019

N2 - We have performed the crystal structure analyses of PrTr2Al20 (Tr = Ti and V). From the anisotropic thermal ellipsoids and the temperature dependence of the lattice constant, it is clarified that the thermal vibration predominantly propagates through the Tr–Al framework. The Pr–Al cage, especially for PrV2Al20, is anisotropically deformed from a sphere; this modifies the crystalline-electric-field levels of Pr3+. This information would provide a clue to understand the anomalous properties in PrTr2Al20.

AB - We have performed the crystal structure analyses of PrTr2Al20 (Tr = Ti and V). From the anisotropic thermal ellipsoids and the temperature dependence of the lattice constant, it is clarified that the thermal vibration predominantly propagates through the Tr–Al framework. The Pr–Al cage, especially for PrV2Al20, is anisotropically deformed from a sphere; this modifies the crystalline-electric-field levels of Pr3+. This information would provide a clue to understand the anomalous properties in PrTr2Al20.

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ER -

Crystal structure in quadrupolar kondo candidate PrTR₂Al₂₀ (Tr = Ti and V)

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