TY - JOUR
T1 - Magnetic excitations from the linear Heisenberg antiferromagnetic spin trimer system A3Cu3(P O4) 4 (A=Ca, Sr, and Pb)
AU - Matsuda, M.
AU - Kakurai, K.
AU - Belik, A. A.
AU - Azuma, M.
AU - Takano, M.
AU - Fujita, Masaki
PY - 2005/12/15
Y1 - 2005/12/15
N2 - Inelastic neutron-scattering experiments were performed on A3Cu3(P O4) 4 (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, in which the main interaction is the nearest-neighbor intratrimer interaction and the weak next-nearest-neighbor intratrimer and intertrimer interactions are expected. The intratrimer coupling constants are determined to be 9.45(3), 10.04(3), and 9.13(2) meV for A3Cu3(P O4) 4 with A=Ca, Sr, and Pb, respectively. The other interactions were found to be very small.
AB - Inelastic neutron-scattering experiments were performed on A3Cu3(P O4) 4 (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, in which the main interaction is the nearest-neighbor intratrimer interaction and the weak next-nearest-neighbor intratrimer and intertrimer interactions are expected. The intratrimer coupling constants are determined to be 9.45(3), 10.04(3), and 9.13(2) meV for A3Cu3(P O4) 4 with A=Ca, Sr, and Pb, respectively. The other interactions were found to be very small.
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U2 - 10.1103/PhysRevB.71.144411
DO - 10.1103/PhysRevB.71.144411
M3 - Article
AN - SCOPUS:28744449985
VL - 71
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 14
M1 - 144411
ER -