AC susceptibility measurements on heavy fermion compounds CeCu6 and CeNi down to submillikelvin temperatures

H. Tsujii; E. Tanaka; T. Mamiya; S. Araki; R. Settai; Y. Õnuki

doi:10.1016/S0921-4526(99)02533-8

AC susceptibility measurements on heavy fermion compounds CeCu₆ and CeNi down to submillikelvin temperatures

H. Tsujii, E. Tanaka, T. Mamiya, S. Araki, R. Settai, Y. Õnuki

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

1 Citation (Scopus)

Abstract

We have measured the AC magnetic susceptibility of single crystals of the heavy fermion compounds CeCu₆ and CeNi at temperatures down to 250 μK. The susceptibility of CeCu₆ shows a peak at about 2 mK in a zero magnetic field. The peak height along a-axis is about 10 times as large as along b- and c-axis, and decreases to zero in increasing field up to 11 mT. It is likely that the susceptibility of CeNi along c-axis has three peaks: below 350 μK, at 47 mK and at 0.3 K, respectively. The two peaks at lower temperatures are suppressed by a magnetic field. The newly observed peaks in the susceptibilities for CeCu₆ and CeNi suggest effects of magnetic impurities rather than of magnetic ordering.

Original language	English
Pages (from-to)	1265-1266
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART II
DOIs	https://doi.org/10.1016/S0921-4526(99)02533-8
Publication status	Published - 2000
Externally published	Yes

Keywords

AC susceptibility
CeCu
CeNi
Heavy fermion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{832f1b5456c243c2a14ec056e52496f5,

title = "AC susceptibility measurements on heavy fermion compounds CeCu6 and CeNi down to submillikelvin temperatures",

abstract = "We have measured the AC magnetic susceptibility of single crystals of the heavy fermion compounds CeCu6 and CeNi at temperatures down to 250 μK. The susceptibility of CeCu6 shows a peak at about 2 mK in a zero magnetic field. The peak height along a-axis is about 10 times as large as along b- and c-axis, and decreases to zero in increasing field up to 11 mT. It is likely that the susceptibility of CeNi along c-axis has three peaks: below 350 μK, at 47 mK and at 0.3 K, respectively. The two peaks at lower temperatures are suppressed by a magnetic field. The newly observed peaks in the susceptibilities for CeCu6 and CeNi suggest effects of magnetic impurities rather than of magnetic ordering.",

keywords = "AC susceptibility, CeCu, CeNi, Heavy fermion",

author = "H. Tsujii and E. Tanaka and T. Mamiya and S. Araki and R. Settai and Y. {\~O}nuki",

note = "Funding Information: This work was supported by Grant-in-Aid for International Scientific Research Program and one of us (Y.O.) was financially supported by COE Research (10CE 2004) of the Ministry of Education, Science, Sports and Culture. We acknowledge the experimental assistance from S. Inoue, W. Itoh and T. Kurokawa.",

year = "2000",

doi = "10.1016/S0921-4526(99)02533-8",

language = "English",

volume = "284-288",

pages = "1265--1266",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "PART II",

}

TY - JOUR

T1 - AC susceptibility measurements on heavy fermion compounds CeCu6 and CeNi down to submillikelvin temperatures

AU - Tsujii, H.

AU - Tanaka, E.

AU - Mamiya, T.

AU - Araki, S.

AU - Settai, R.

AU - Õnuki, Y.

N1 - Funding Information: This work was supported by Grant-in-Aid for International Scientific Research Program and one of us (Y.O.) was financially supported by COE Research (10CE 2004) of the Ministry of Education, Science, Sports and Culture. We acknowledge the experimental assistance from S. Inoue, W. Itoh and T. Kurokawa.

PY - 2000

Y1 - 2000

N2 - We have measured the AC magnetic susceptibility of single crystals of the heavy fermion compounds CeCu6 and CeNi at temperatures down to 250 μK. The susceptibility of CeCu6 shows a peak at about 2 mK in a zero magnetic field. The peak height along a-axis is about 10 times as large as along b- and c-axis, and decreases to zero in increasing field up to 11 mT. It is likely that the susceptibility of CeNi along c-axis has three peaks: below 350 μK, at 47 mK and at 0.3 K, respectively. The two peaks at lower temperatures are suppressed by a magnetic field. The newly observed peaks in the susceptibilities for CeCu6 and CeNi suggest effects of magnetic impurities rather than of magnetic ordering.

AB - We have measured the AC magnetic susceptibility of single crystals of the heavy fermion compounds CeCu6 and CeNi at temperatures down to 250 μK. The susceptibility of CeCu6 shows a peak at about 2 mK in a zero magnetic field. The peak height along a-axis is about 10 times as large as along b- and c-axis, and decreases to zero in increasing field up to 11 mT. It is likely that the susceptibility of CeNi along c-axis has three peaks: below 350 μK, at 47 mK and at 0.3 K, respectively. The two peaks at lower temperatures are suppressed by a magnetic field. The newly observed peaks in the susceptibilities for CeCu6 and CeNi suggest effects of magnetic impurities rather than of magnetic ordering.

KW - AC susceptibility

KW - CeCu

KW - CeNi

KW - Heavy fermion

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U2 - 10.1016/S0921-4526(99)02533-8

DO - 10.1016/S0921-4526(99)02533-8

M3 - Article

AN - SCOPUS:0033704656

VL - 284-288

SP - 1265

EP - 1266

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - PART II

ER -