Magnetic excitations from the linear Heisenberg antiferromagnetic spin trimer system ACu(PO) (A=Ca, Sr, and Pb)

Matsuda, Masaaki; Kakurai, Kazuhisa; Belik, A. A.*; Azuma, Masaki*; Takano, Mikio*; Fujita, Masaki*

Inelastic neutron scattering experiments were performed on ACu(PO) (A=Ca, Sr, and Pb), which consists of one-dimensional array of linear copper spin trimers. It was found that the magnetic excitations are well described by the linear Heisenberg antiferromagnetic spin trimer model without adjustable parameters except the overall scale factor. The intra-trimer coupling contants are determined to be 9.39(4), 9.99(4), and 9.07(4) meV for ACu(PO) with A=Ca, Sr, and Pb, respectively.

Language	:	English
Journal	:	Physical Review B
Volume	:	71
Number	:	14
Pages	:	p.144411_1 - 144411_5
Publication Year/Month	:	2005/04
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Paper URL	:	https://doi.org/10.1103/PhysRevB.71.144411
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	中性子散乱; 磁気励起; トライマー
Research Facility	:	JRR-3M(研究炉3)
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Registration No. : A20040170
JAEA Abstracts No. : 330634
Paper Submission No. : 21952

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