Pressure-induced antiferromagnetic superconductivity in CeNiGe3: A 73Ge-NQR study under pressure

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

Research output: Contribution to journalArticle

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Abstract

We report on antiferromagnetic (AF) properties of pressure-induced superconductivity in CeNiGe3 via the 73Ge nuclear-quadrupole-resonance (NQR) measurements under pressure (P). The NQR-spectrum measurements have revealed that the incommensurate antiferromagnetic ordering is robust against increasing P with the increase of ordered moment and ordering temperature. Nevertheless the measurements of nuclear spin-lattice relaxation rate (1 / T1) have pointed to the onset of superconductivity as a consequence of Ce-4f electrons delocalized by applying P. The emergence of superconductivity under the development of AF order suggests that a novel type of superconducting mechanism works in this compound.

Original languageEnglish
Pages (from-to)614-616
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - Mar 2007
Externally publishedYes

Fingerprint

Nuclear quadrupole resonance
nuclear quadrupole resonance
Superconductivity
superconductivity
Spin-lattice relaxation
spin-lattice relaxation
nuclear spin
moments
Electrons
electrons
Temperature
temperature

Keywords

  • Antiferromagnetism
  • CeNiGe
  • Heavy fermion
  • NQR under pressure
  • Superconductivity

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Pressure-induced antiferromagnetic superconductivity in CeNiGe3 : A 73Ge-NQR study under pressure. / Harada, A.; Kawasaki, Shinji; Mukuda, H.; Kitaoka, Y.; Thamizhavel, A.; Okuda, Y.; Settai, R.; Onuki, Y.; Itoh, K. M.; Haller, E. E.; Harima, H.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 1, 03.2007, p. 614-616.

Research output: Contribution to journalArticle

Harada, A, Kawasaki, S, Mukuda, H, Kitaoka, Y, Thamizhavel, A, Okuda, Y, Settai, R, Onuki, Y, Itoh, KM, Haller, EE & Harima, H 2007, 'Pressure-induced antiferromagnetic superconductivity in CeNiGe3: A 73Ge-NQR study under pressure', Journal of Magnetism and Magnetic Materials, vol. 310, no. 2 SUPPL. PART 1, pp. 614-616. https://doi.org/10.1016/j.jmmm.2006.10.883
Harada, A. ; Kawasaki, Shinji ; Mukuda, H. ; Kitaoka, Y. ; Thamizhavel, A. ; Okuda, Y. ; Settai, R. ; Onuki, Y. ; Itoh, K. M. ; Haller, E. E. ; Harima, H. / Pressure-induced antiferromagnetic superconductivity in CeNiGe3 : A 73Ge-NQR study under pressure. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 1. pp. 614-616.
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AU - Okuda, Y.

AU - Settai, R.

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