Intimate interplay between superconductivity and antiferromagnetism in CeNiGe3: A 73Ge-NQR study under pressure

A. Harada; H. Mukuda; Y. Kitaoka; A. Thamizhavel; Y. Okuda; R. Settai; Y. Onuki; K. M. Itoh; E. E. Haller; H. Harima

doi:10.1016/j.physb.2007.10.080

Intimate interplay between superconductivity and antiferromagnetism in CeNiGe₃: A⁷³Ge-NQR study under pressure

A. Harada, H. Mukuda, Y. Kitaoka, A. Thamizhavel, Y. Okuda, R. Settai, Y. Onuki, K. M. Itoh, E. E. Haller, H. Harima

Department of Applied Physics and Physico-Informatics

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

4 Citations (Scopus)

Abstract

We report the ⁷³Ge-NQR studies on the antiferromagnetic (AFM) heavy-fermion compound CeNiGe₃ which shows two domes like pressure-induced superconducting phases in the pressure (P) ranges of 1.7-3.5 GPa and 5.9-7.3 GPa denoted as SC1 and SC2, respectively [M. Nakashima, et al., J. Phys. Condens. Matter. 16 (2004) L255, H. Kotegawa, et al., J. Phys. Soc. Jpn. 75 (2006) 044713]. The NQR spectra have revealed a change from an incommensurate AFM structure at P = 0 and 2.0 GPa into a commensurate one at P = 2.8 GPa. The onset of the SC1 may be relevant to an intimate evolution from the incommensurate into commensurate AFM-spin structure as P increases.

Original language	English
Pages (from-to)	1020-1022
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.080
Publication status	Published - 2008 Apr 1

Keywords

Antiferromagnetism
CeNiGe
Longitudinal fluctuation
NQR under pressure
Superconductivity

ASJC Scopus subject areas

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

Access to Document

10.1016/j.physb.2007.10.080

Cite this

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title = "Intimate interplay between superconductivity and antiferromagnetism in CeNiGe3: A 73Ge-NQR study under pressure",

abstract = "We report the 73Ge-NQR studies on the antiferromagnetic (AFM) heavy-fermion compound CeNiGe3 which shows two domes like pressure-induced superconducting phases in the pressure (P) ranges of 1.7-3.5 GPa and 5.9-7.3 GPa denoted as SC1 and SC2, respectively [M. Nakashima, et al., J. Phys. Condens. Matter. 16 (2004) L255, H. Kotegawa, et al., J. Phys. Soc. Jpn. 75 (2006) 044713]. The NQR spectra have revealed a change from an incommensurate AFM structure at P = 0 and 2.0 GPa into a commensurate one at P = 2.8 GPa. The onset of the SC1 may be relevant to an intimate evolution from the incommensurate into commensurate AFM-spin structure as P increases.",

keywords = "Antiferromagnetism, CeNiGe, Longitudinal fluctuation, NQR under pressure, Superconductivity",

author = "A. Harada and H. Mukuda and Y. Kitaoka and A. Thamizhavel and Y. Okuda and R. Settai and Y. Onuki and Itoh, {K. M.} and Haller, {E. E.} and H. Harima",

year = "2008",

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doi = "10.1016/j.physb.2007.10.080",

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T2 - A 73Ge-NQR study under pressure

AU - Harada, A.

AU - Mukuda, H.

AU - Kitaoka, Y.

AU - Thamizhavel, A.

AU - Okuda, Y.

AU - Settai, R.

AU - Onuki, Y.

AU - Itoh, K. M.

AU - Haller, E. E.

AU - Harima, H.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - We report the 73Ge-NQR studies on the antiferromagnetic (AFM) heavy-fermion compound CeNiGe3 which shows two domes like pressure-induced superconducting phases in the pressure (P) ranges of 1.7-3.5 GPa and 5.9-7.3 GPa denoted as SC1 and SC2, respectively [M. Nakashima, et al., J. Phys. Condens. Matter. 16 (2004) L255, H. Kotegawa, et al., J. Phys. Soc. Jpn. 75 (2006) 044713]. The NQR spectra have revealed a change from an incommensurate AFM structure at P = 0 and 2.0 GPa into a commensurate one at P = 2.8 GPa. The onset of the SC1 may be relevant to an intimate evolution from the incommensurate into commensurate AFM-spin structure as P increases.

AB - We report the 73Ge-NQR studies on the antiferromagnetic (AFM) heavy-fermion compound CeNiGe3 which shows two domes like pressure-induced superconducting phases in the pressure (P) ranges of 1.7-3.5 GPa and 5.9-7.3 GPa denoted as SC1 and SC2, respectively [M. Nakashima, et al., J. Phys. Condens. Matter. 16 (2004) L255, H. Kotegawa, et al., J. Phys. Soc. Jpn. 75 (2006) 044713]. The NQR spectra have revealed a change from an incommensurate AFM structure at P = 0 and 2.0 GPa into a commensurate one at P = 2.8 GPa. The onset of the SC1 may be relevant to an intimate evolution from the incommensurate into commensurate AFM-spin structure as P increases.

KW - Antiferromagnetism

KW - CeNiGe

KW - Longitudinal fluctuation

KW - NQR under pressure

KW - Superconductivity

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