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|Title:||Magnetic state selected by magnetic dipole interaction in the kagome antiferromagnet NaBa2Mn3F11|
|Publisher:||American Physical Society|
|Citation:||Hayashida, S., Ishikawa, H., Okamoto, Y., Okubo, T., Hiroi, Z., Avdeev, M., Manuel, P., Hagihala, M., Soda, M., & Masuda, T. (2018). Magnetic state selected by magnetic dipole interaction in the kagome antiferromagnet NaBa2Mn3F11. Physical Review B, 97(5), 054411. doi:10.1103/PhysRevB.97.054411|
|Abstract:||We haved studied the ground state of the classical kagome antiferromagnet NaBa2Mn3F11. Strong magnetic Bragg peaks observed for d spacings shorter than 6.0 Å were indexed by the propagation vector of k0=(0,0,0). Additional peaks with weak intensities in the d-spacing range above 8.0 Å were indexed by the incommensurate vector of k1=[0.3209(2),0.3209(2),0] and k2=[0.3338(4),0.3338(4),0]. Magnetic structure analysis unveils a 120∘ structure with the tail-chase geometry having k0 modulated by the incommensurate vector. A classical calculation of the Heisenberg kagome antiferromagnet with antiferromagnetic second-neighbor interaction, for which the ground state a k0120∘ degenerated structure, reveals that the magnetic dipole-dipole (MDD) interaction including up to the fourth neighbor terms selects the tail-chase structure. The observed modulation of the tail-chase structure is attributed to a small perturbation such as the long-range MDD interaction or the interlayer interaction. ©2018 American Physical Society|
|Appears in Collections:||Journal Articles|
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