In recent times, ultra-thin films of hafnium oxide (HfO) have shown ferroelectricity (FE) attributed to the orthorhombic (o) phase of HfO with space group 2. This polar o-phase could be stabilized in the doped thin film of the oxide. In the present work, both polar and non-polar o-phases of HfO could be stabilized in Gd-doped bulk polycrystalline HfO.
View Article and Find Full Text PDFWe report the first observation of inverse magnetocaloric effect (IMCE) in hydrothermally synthesized single crystalline La0.5Sr0.5MnO3 nanowires.
View Article and Find Full Text PDFJ Phys Condens Matter
September 2012
We report a detailed investigation of the magnetocaloric properties of self-doped polycrystalline LaMnO(3+δ) with δ = 0.04. Due to the self-doping effect, the system exhibits a magnetic transition from a paramagnetic to ferromagnetic-like canted magnetic state (CMS) at ~120 K, which is associated with an appreciably large magnetocaloric effect (MCE).
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