Spin-lattice coupling and frustrated magnetism in Fe-doped hexagonal LuMnO3 Harikrishnan S. Nair, Zhendong Fu, C. M. N. Kumar, V. Y. Pomjakushin, Yinguo Xiao, Tapan Chatterji and André M. Strydom EPL, 110 3 (2015) 37007 Published online: 20 May 2015 DOI: 10.1209/0295-5075/110/37007