User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse




Journal Article

Spin-lattice coupling and frustrated magnetism in Fe-doped hexagonal LuMnO3


Strydom,  André M.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Ressource

(Any fulltext)

Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Nair, H. S., Fu, Z., Kumar, C. M. N., Pomjakushin, V. Y., Xiao, Y., Chatterji, T., et al. (2015). Spin-lattice coupling and frustrated magnetism in Fe-doped hexagonal LuMnO3. EPL, 110(3): 37007, pp. 1-6. doi:10.1209/0295-5075/110/37007.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0026-D18C-3
Strong spin-lattice coupling and prominent frustration effects observed in the 50 Fe-doped frustrated hexagonal IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn1.gif] (h)̑ext{LuMnO}_3} are reported. A Néel transition at IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn2.gif] {T_{\mathrm{N}}≈112\ ̑ext{K}} and a possible spin re-orientation transition at IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn3.gif] {T_{\mathrm{SR}}≈55\ ̑ext{K}} are observed in the magnetization data. From neutron powder diffraction data, the nuclear structure at and below 300 K was refined in polar P 6 3 cm space group. While the magnetic structure of LuMnO 3 belongs to the IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn4.gif] {Γ_4\ (P6'_3c'm)} representation, that of LuFe 0.5 Mn 0.5 O 3 belongs to IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn5.gif] {Γ_1\ (P6_3cm)} which is supported by the strong intensity for the (100) reflection and also judging by the presence of spin-lattice coupling. The refined atomic positions for Lu and Mn/Fe indicate significant atomic displacements at IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn6.gif] {T_{\mathrm{N}}} and IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn7.gif] {T_{\mathrm{SR}}} which confirms strong spin-lattice coupling. Our results complement the discovery of room temperature multiferroicity in thin films of IMG [http://ej.iop.org/images/0295-5075/110/3/37007/epl17080ieqn8.gif] {h̑ext{LuFeO}_3 and would give impetus to study LuFe 1− x Mn x O 3 systems as potential multiferroics where electric polarization is linked to giant atomic displacements.