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Intertwining of Frustration with Magneto-Elastic Coupling in the Multiferroic LuMnO3



Shin-ichiro Yano, Despina Louca, Songxue Chi, Masaaki Matsuda, Yiming Qiu, John R. Copley, Sang-Wook Cheong


Residual magnetic frustration in the multiferroic LuMNO3 may be key towards understanding magneto-elastic coupling in hexagonal manganites. Critical magnetic scattering present well above the magnetic ordering temperature ΤN persists below, as observed by inelastic neutron scattering. The magnetic fluctuations are confined in two dimensions implied by the characteristic wavevector dependence of the magnetic structure factor that changes from symmetric to asymmetric across ΤN. The low dimensionality of the magnetic structure is also evident in the temperature dependence of the commensurate antiferromagnetic intensity which follows a mean field exponent of β0.2.
Journal of the Physical Society of Japan


multiferroic, neutron scattering, magnetic frustration


Yano, S. , Louca, D. , Chi, S. , Matsuda, M. , Qiu, Y. , Copley, J. and Cheong, S. (2013), Intertwining of Frustration with Magneto-Elastic Coupling in the Multiferroic LuMnO<sub>3</sub>, Journal of the Physical Society of Japan, [online], (Accessed June 24, 2024)


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Created December 24, 2013, Updated October 12, 2021