Multiglass properties and magnetoelectric coupling in uniaxial anisotropic spin-cluster-glass Fe2TiO5

Abstract

The compound, Fe2TiO5 (FTO)is a well-known uniaxial anisotropic spin-glass insulator with two successive glassy freezing temperatures i.e. transverse (TTF= 9K) and longitudinal (TLF= 55 K). In this article, we present the results of measurements of complex dielectric behavior, electric polarization as a function of temperature (T), in addition to characterization by magnetic susceptibility and heat-capacity, primarily to explore magnetoelectric (ME) coupling and multiglass properties in uniaxial anisotropic spin cluster-glass FTO. The existence of two magnetic transitions is reflected in the isothermal magnetodielectric (MD) behavior in the sense that the sign of MD is different in the T regime T<TTF and T>TTF.The data in addition provide evidence for the glassy dynamics of electric-dipoles; interestingly, this occurs at much higher temperature (~100-150 K) than TLF with high remnant polarization at 10 K( 4000 micro C/m2) attributable to short-range magnetic correlations, thereby offering a route to attain ME coupling above 77 K.

arXiv comment17 Pages, 4 figures

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• Cobalt substitution induced magnetodielectric enhancement in multiferroic Bi2Fe4O9
• Probing the Griffiths like phase, unconventional dual glassy states, giant exchange bias effects and its correlation with its electronic structure in Pr2-xSrxCoMnO6
• Implications of magnetic and magnetodielectric behavior of GdCrTiO5
• Multiferroicity and magnetoelastic coupling in alpha-Mn2O3: A binary perovskite
• Evolution of magnetic and dielectric properties in Sr-substituted high temperature multiferroic YBaCuFeO5
• Effect of rare-earth (Er and Gd) substitution on the magnetic and multiferroic properties of DyFe0.5Cr0.5O3
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• Enhancement of magnetoelectric coupling in Cr doped Mn2O3
• Magnetodielectric coupling in a non-perovskite metal-organic framework
• Evidence of a cluster spin-glass state in the B-site disordered perovskite SrTi0.5Mn0.5O3
• Effect of (Cu/Fe)O5 bipyramid size and separation on magnetic and dielectric properties of rare earth layered perovskite LaBaCuFeO5 and LuBaCuFeO5
• Magneto-thermally Activated Spin-state Transition in La0.95Ca0.05CoO3: Magnetically-tunable Dipolar Glass and Giant Magneto-electricity
• Magnetodielectric coupling and multi-blocking effect in the Ising-chain magnet Sr2Ca2CoMn2O9