Inelastic neutron scattering study of the spin-gap cuprate β-AgCuP O4

Masashi Hase; Masaaki Matsuda; Kazuhisa Kakurai; Kiyoshi Ozawa; Hideaki Kitazawa; Naohito Tsujii; Andreas Dönni; Haruhiko Kuroe

doi:10.1103/PhysRevB.76.134403

Inelastic neutron scattering study of the spin-gap cuprate β-AgCuP O4

Masashi Hase, Masaaki Matsuda, Kazuhisa Kakurai, Kiyoshi Ozawa, Hideaki Kitazawa, Naohito Tsujii, Andreas Dönni, Haruhiko Kuroe

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

2 Scopus citations

Abstract

We studied magnetism of β-AgCuP O4 using inelastic neutron scattering and magnetic susceptibility measurements on powder samples. A well-defined asymmetric broad inelastic peak was observed at 6.2 meV in constant- Q (scattering vector) scan spectra, indicating spin-gap excitation. From results of these measurements, we have obtained that the strongest exchange interaction exists in a Cu-O-P-O-Cu path in spite of the existence of Cu-O-Cu paths and that the antiferromagnetic alternating chain model with two exchange interaction values of 80 and 14 K can explain the experimental results quantitatively. Our results are consistent with the prediction of Yahia [Inorg. Chem. 45, 5501 (2006)].

Original language	English
Article number	134403
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	76
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.76.134403
State	Published - Oct 9 2007
Externally published	Yes

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title = "Inelastic neutron scattering study of the spin-gap cuprate β-AgCuP O4",

abstract = "We studied magnetism of β-AgCuP O4 using inelastic neutron scattering and magnetic susceptibility measurements on powder samples. A well-defined asymmetric broad inelastic peak was observed at 6.2 meV in constant- Q (scattering vector) scan spectra, indicating spin-gap excitation. From results of these measurements, we have obtained that the strongest exchange interaction exists in a Cu-O-P-O-Cu path in spite of the existence of Cu-O-Cu paths and that the antiferromagnetic alternating chain model with two exchange interaction values of 80 and 14 K can explain the experimental results quantitatively. Our results are consistent with the prediction of Yahia [Inorg. Chem. 45, 5501 (2006)].",

author = "Masashi Hase and Masaaki Matsuda and Kazuhisa Kakurai and Kiyoshi Ozawa and Hideaki Kitazawa and Naohito Tsujii and Andreas D{\"o}nni and Haruhiko Kuroe",

year = "2007",

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doi = "10.1103/PhysRevB.76.134403",

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

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T1 - Inelastic neutron scattering study of the spin-gap cuprate β-AgCuP O4

AU - Hase, Masashi

AU - Matsuda, Masaaki

AU - Kakurai, Kazuhisa

AU - Ozawa, Kiyoshi

AU - Kitazawa, Hideaki

AU - Tsujii, Naohito

AU - Dönni, Andreas

AU - Kuroe, Haruhiko

PY - 2007/10/9

Y1 - 2007/10/9

N2 - We studied magnetism of β-AgCuP O4 using inelastic neutron scattering and magnetic susceptibility measurements on powder samples. A well-defined asymmetric broad inelastic peak was observed at 6.2 meV in constant- Q (scattering vector) scan spectra, indicating spin-gap excitation. From results of these measurements, we have obtained that the strongest exchange interaction exists in a Cu-O-P-O-Cu path in spite of the existence of Cu-O-Cu paths and that the antiferromagnetic alternating chain model with two exchange interaction values of 80 and 14 K can explain the experimental results quantitatively. Our results are consistent with the prediction of Yahia [Inorg. Chem. 45, 5501 (2006)].

AB - We studied magnetism of β-AgCuP O4 using inelastic neutron scattering and magnetic susceptibility measurements on powder samples. A well-defined asymmetric broad inelastic peak was observed at 6.2 meV in constant- Q (scattering vector) scan spectra, indicating spin-gap excitation. From results of these measurements, we have obtained that the strongest exchange interaction exists in a Cu-O-P-O-Cu path in spite of the existence of Cu-O-Cu paths and that the antiferromagnetic alternating chain model with two exchange interaction values of 80 and 14 K can explain the experimental results quantitatively. Our results are consistent with the prediction of Yahia [Inorg. Chem. 45, 5501 (2006)].

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DO - 10.1103/PhysRevB.76.134403

M3 - Article

AN - SCOPUS:35148859692

SN - 1098-0121

VL - 76

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 13

M1 - 134403

ER -

Inelastic neutron scattering study of the spin-gap cuprate β-AgCuP O4

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