Normal-state spin dynamics in the spin-triplet superconductor (formula presented)

Z. Q. Mao; Y. Maeno; H. Mukuda; K. Ishida; Y. Kitaoka; Y. Minami; H. Fukazawa

doi:10.1103/PhysRevB.64.100501

Normal-state spin dynamics in the spin-triplet superconductor (formula presented)

Z. Q. Mao, Y. Maeno, H. Mukuda, K. Ishida, Y. Kitaoka, Y. Minami, H. Fukazawa

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

Abstract

Magnetic properties in the normal state of spin-triplet superconductor (formula presented) are discussed on the basis of Ru- and O-NMR and neutron-diffraction (ND) measurements reported so far. Besides strong incommensurate antiferromagnetic (IC-AFM) fluctuations probed by the ND measurements, it is shown that q-independent fluctuations are present over a wide temperature range up to 500 K from the comparison between NMR and ND results. From an anisotropy in the nuclear spin lattice relaxation rate (formula presented) at both the Ru and O sites, it was found that the IC-AFM fluctuations are anisotropic so that the out-of-plane component of low-frequency dynamical susceptibility, (formula presented) is by a factor of (formula presented) larger than the in-plane one, (formula presented) These unique characters in magnetic fluctuations are implied to have some relevance for the occurrence of spin-triplet superconductivity.

Original language	English (US)
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.64.100501
State	Published - 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.64.100501

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title = "Normal-state spin dynamics in the spin-triplet superconductor (formula presented)",

abstract = "Magnetic properties in the normal state of spin-triplet superconductor (formula presented) are discussed on the basis of Ru- and O-NMR and neutron-diffraction (ND) measurements reported so far. Besides strong incommensurate antiferromagnetic (IC-AFM) fluctuations probed by the ND measurements, it is shown that q-independent fluctuations are present over a wide temperature range up to 500 K from the comparison between NMR and ND results. From an anisotropy in the nuclear spin lattice relaxation rate (formula presented) at both the Ru and O sites, it was found that the IC-AFM fluctuations are anisotropic so that the out-of-plane component of low-frequency dynamical susceptibility, (formula presented) is by a factor of (formula presented) larger than the in-plane one, (formula presented) These unique characters in magnetic fluctuations are implied to have some relevance for the occurrence of spin-triplet superconductivity.",

author = "Mao, {Z. Q.} and Y. Maeno and H. Mukuda and K. Ishida and Y. Kitaoka and Y. Minami and H. Fukazawa",

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doi = "10.1103/PhysRevB.64.100501",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

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T1 - Normal-state spin dynamics in the spin-triplet superconductor (formula presented)

AU - Mao, Z. Q.

AU - Maeno, Y.

AU - Mukuda, H.

AU - Ishida, K.

AU - Kitaoka, Y.

AU - Minami, Y.

AU - Fukazawa, H.

PY - 2001

Y1 - 2001

N2 - Magnetic properties in the normal state of spin-triplet superconductor (formula presented) are discussed on the basis of Ru- and O-NMR and neutron-diffraction (ND) measurements reported so far. Besides strong incommensurate antiferromagnetic (IC-AFM) fluctuations probed by the ND measurements, it is shown that q-independent fluctuations are present over a wide temperature range up to 500 K from the comparison between NMR and ND results. From an anisotropy in the nuclear spin lattice relaxation rate (formula presented) at both the Ru and O sites, it was found that the IC-AFM fluctuations are anisotropic so that the out-of-plane component of low-frequency dynamical susceptibility, (formula presented) is by a factor of (formula presented) larger than the in-plane one, (formula presented) These unique characters in magnetic fluctuations are implied to have some relevance for the occurrence of spin-triplet superconductivity.

AB - Magnetic properties in the normal state of spin-triplet superconductor (formula presented) are discussed on the basis of Ru- and O-NMR and neutron-diffraction (ND) measurements reported so far. Besides strong incommensurate antiferromagnetic (IC-AFM) fluctuations probed by the ND measurements, it is shown that q-independent fluctuations are present over a wide temperature range up to 500 K from the comparison between NMR and ND results. From an anisotropy in the nuclear spin lattice relaxation rate (formula presented) at both the Ru and O sites, it was found that the IC-AFM fluctuations are anisotropic so that the out-of-plane component of low-frequency dynamical susceptibility, (formula presented) is by a factor of (formula presented) larger than the in-plane one, (formula presented) These unique characters in magnetic fluctuations are implied to have some relevance for the occurrence of spin-triplet superconductivity.

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Normal-state spin dynamics in the spin-triplet superconductor (formula presented)

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