55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure

Guo-Qing Zheng, K. Nishikido, K. Ohnishi, Y. Kitaoka, K. Asayama, R. Hauser

Research output: Contribution to journalArticle

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Abstract

We report magnetic properties of the antiferromagnet YMn2 as functions of pressure and temperature (7) obtained from the 55Mn spin-lattice relaxation rate and the Knight shift. An energy-band narrowing due to electron correlation is indicated by the Knight shift measurement and the application of pressure is found to enhance the conduction electron bandwidth. In the pressure-induced paramagnetic state, the system undergoes a crossover from an itinerant spin fluctuation (SF) regime at low T to a local SF regime at high T. It is pointed out that this magnetic crossover of SF resembles that of high-temperature superconductors.

Original languageEnglish
Pages (from-to)13973-13976
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number21
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Spin fluctuations
Magnetic properties
Nuclear magnetic resonance
magnetic properties
nuclear magnetic resonance
crossovers
Electron correlations
Spin-lattice relaxation
High temperature superconductors
high temperature superconductors
spin-lattice relaxation
conduction electrons
Band structure
energy bands
bandwidth
Bandwidth
Electrons
electrons
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Zheng, G-Q., Nishikido, K., Ohnishi, K., Kitaoka, Y., Asayama, K., & Hauser, R. (1999). 55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure. Physical Review B - Condensed Matter and Materials Physics, 59(21), 13973-13976.

55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure. / Zheng, Guo-Qing; Nishikido, K.; Ohnishi, K.; Kitaoka, Y.; Asayama, K.; Hauser, R.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 59, No. 21, 1999, p. 13973-13976.

Research output: Contribution to journalArticle

Zheng, G-Q, Nishikido, K, Ohnishi, K, Kitaoka, Y, Asayama, K & Hauser, R 1999, '55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure', Physical Review B - Condensed Matter and Materials Physics, vol. 59, no. 21, pp. 13973-13976.
Zheng, Guo-Qing ; Nishikido, K. ; Ohnishi, K. ; Kitaoka, Y. ; Asayama, K. ; Hauser, R. / 55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure. In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 59, No. 21. pp. 13973-13976.
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