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

doi:10.1103/PhysRevB.59.13973

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 journal › Article › peer-review

10 Citations (Scopus)

Abstract

We report magnetic properties of the antiferromagnet YMn₂ as functions of pressure and temperature (T) 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 language	English
Pages (from-to)	13973-13976
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	59
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.59.13973
Publication status	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.59.13973

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abstract = "We report magnetic properties of the antiferromagnet YMn2 as functions of pressure and temperature (T) 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.",

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AU - Zheng, Guo Qing

AU - Nishikido, K.

AU - Ohnishi, K.

AU - Kitaoka, Y.

AU - Asayama, K.

AU - Hauser, R.

PY - 1999

Y1 - 1999

N2 - We report magnetic properties of the antiferromagnet YMn2 as functions of pressure and temperature (T) 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.

AB - We report magnetic properties of the antiferromagnet YMn2 as functions of pressure and temperature (T) 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.

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JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

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

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