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Strain-induced ferromagnetism in antiferromagnetic LuMnO₃ thin films

White, J. S. ; Bator, M. ; Hu, Yanqing ; Luetkens, H. ; Stahn, J. ; Capelli, S. ; Das, Saikat ; Döbeli, M. ; Lippert, Th. ; Malik, Vivek Kumar ; Martynczuk, J. ; Wokaun, A. ; Kenzelmann, M. ; Niedermayer, Ch. ; Schneider, C. W.

In: Physical Review Letters, 2013, vol. 111, no. 3, p. 037201

Single phase and strained LuMnO₃ thin films are discovered to display coexisting ferromagnetic and antiferromagnetic orders. A large moment ferromagnetism (≈1μB), which is absent in bulk samples, is shown to display a magnetic moment distribution that is peaked at the highly strained substrate-film interface. We further show that the strain-induced ferromagnetism and the...