Magnetic properties of hexagonal YMnO$_3$, LuMnO$_3$ and ScMnO$_3$ Magnetic susceptibility, specific heat and dielectric constant of hexagonal YMnO_3, LuMnO_3 and ScMnO_3

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dc.creatorTomuta, D. G.
dc.creatorRamakrishnan, S.
dc.creatorNieuwenhuys, G. J.
dc.creatorMydosh, J. A.
dc.date2001-03-29
dc.date2001-04-11
dc.date.accessioned2026-07-07T02:40:54Z
dc.date.available2026-07-07T02:40:54Z
dc.descriptionWe report the magnetic susceptibility, specific heat and dielectric constant on high purity polycrystalline samples of three hexagonal manganites: YMnO_3, LuMnO_3 and ScMnO_3. These materials can exhibit a ferroelectric transition at very high temperatures (T_{FE} > 700K). At lower temperatures there is magnetic ordering of the frustrated Mn^{3+} spins (S=2) on a triangular Mn lattice (YMnO_3:T_N=71K; LuMnO$_3:T_N=90K and ScMnO_3:T_N=130K). The transition is characterized by a sharp kink in the magnetic susceptibility at T_N below which it continues to increase due to the frustration on the triangular lattice. The specific heat shows one clear continuous phase transition at T_N, which is independent of external magnetic field up to 9T with an entropy content as expected for Mn^{3+} ions. The temperature dependent dielectric constant displays a distinct anomaly at T_N.
dc.descriptionLaTeX2e,8 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0103609
dc.identifierhttp://arxiv.org/abs/cond-mat/0103609
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17544
dc.subjectMaterials Science
dc.titleMagnetic properties of hexagonal YMnO$_3$, LuMnO$_3$ and ScMnO$_3$ Magnetic susceptibility, specific heat and dielectric constant of hexagonal YMnO_3, LuMnO_3 and ScMnO_3
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