Low-temperature elastic properties of non-Kramers doublet compound PrMg3

K. Araki; K. Mitsumoto; M. Akatsu; Y. Nemoto; T. Goto; H. S. Suzuki; H. Tanida; S. Takagi; S. Yasin; S. Zherlitsyn; J. Wosnitza

doi:10.1088/1742-6596/273/1/012133

Low-temperature elastic properties of non-Kramers doublet compound PrMg₃

K. Araki, K. Mitsumoto, M. Akatsu, Y. Nemoto, T. Goto, H. S. Suzuki, H. Tanida, S. Takagi, S. Yasin, S. Zherlitsyn, J. Wosnitza

SCI - Physics

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

Abstract

We have investigated low-temperature elastic properties of PrMg₃ with a non-Kramers Γ₃ doublet ground state by using ultrasonic measurements under high field up to 18 T down to 20 mK. A softening of the elastic constant (C₁₁-C₁₂)/2 has been observed below 8 K due to the non-magnetic Γ₃ doublet possessing electric quadrupole O_u and O_v with Γ₃ symmetry and magnetic octupole T_xyz with Γ₂. This result appreciably is deviated from a theoretical fitting of the quadrupole susceptibility based on the crystal-electric-field levels below 800 mK. Furthermore, the (C₁₁-C₁₂)/2 shows strange magnetic dependence up to 18 T below 1.7 K, which are inconsistent with the theoretical results.

Original language	English
Article number	012133
Journal	Journal of Physics: Conference Series
Volume	273
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/273/1/012133
Publication status	Published - 2011 Jan 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Low-temperature elastic properties of non-Kramers doublet compound PrMg3",

abstract = "We have investigated low-temperature elastic properties of PrMg3 with a non-Kramers Γ3 doublet ground state by using ultrasonic measurements under high field up to 18 T down to 20 mK. A softening of the elastic constant (C11-C12)/2 has been observed below 8 K due to the non-magnetic Γ3 doublet possessing electric quadrupole Ou and Ov with Γ3 symmetry and magnetic octupole Txyz with Γ2. This result appreciably is deviated from a theoretical fitting of the quadrupole susceptibility based on the crystal-electric-field levels below 800 mK. Furthermore, the (C11-C12)/2 shows strange magnetic dependence up to 18 T below 1.7 K, which are inconsistent with the theoretical results.",

author = "K. Araki and K. Mitsumoto and M. Akatsu and Y. Nemoto and T. Goto and Suzuki, {H. S.} and H. Tanida and S. Takagi and S. Yasin and S. Zherlitsyn and J. Wosnitza",

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T1 - Low-temperature elastic properties of non-Kramers doublet compound PrMg3

AU - Araki, K.

AU - Mitsumoto, K.

AU - Akatsu, M.

AU - Nemoto, Y.

AU - Goto, T.

AU - Suzuki, H. S.

AU - Tanida, H.

AU - Takagi, S.

AU - Yasin, S.

AU - Zherlitsyn, S.

AU - Wosnitza, J.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - We have investigated low-temperature elastic properties of PrMg3 with a non-Kramers Γ3 doublet ground state by using ultrasonic measurements under high field up to 18 T down to 20 mK. A softening of the elastic constant (C11-C12)/2 has been observed below 8 K due to the non-magnetic Γ3 doublet possessing electric quadrupole Ou and Ov with Γ3 symmetry and magnetic octupole Txyz with Γ2. This result appreciably is deviated from a theoretical fitting of the quadrupole susceptibility based on the crystal-electric-field levels below 800 mK. Furthermore, the (C11-C12)/2 shows strange magnetic dependence up to 18 T below 1.7 K, which are inconsistent with the theoretical results.

AB - We have investigated low-temperature elastic properties of PrMg3 with a non-Kramers Γ3 doublet ground state by using ultrasonic measurements under high field up to 18 T down to 20 mK. A softening of the elastic constant (C11-C12)/2 has been observed below 8 K due to the non-magnetic Γ3 doublet possessing electric quadrupole Ou and Ov with Γ3 symmetry and magnetic octupole Txyz with Γ2. This result appreciably is deviated from a theoretical fitting of the quadrupole susceptibility based on the crystal-electric-field levels below 800 mK. Furthermore, the (C11-C12)/2 shows strange magnetic dependence up to 18 T below 1.7 K, which are inconsistent with the theoretical results.

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