Bulk and surface structure characterization of nanoscopic silver doped lanthanum chromites

Desai, P. A.; Joshi, Preeti Nigam; Patil, K.R.; Athawale, Anjali A.

doi:10.1016/j.apsusc.2012.10.067

Cited by 4 publications

(1 citation statement)

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“…For example, divalent Sr and monovalent Ag doping in LaCrO 3 have been shown to change the oxidation state of Cr from 3þ to 6þ, increasing the conductivity. 22,23 DCO has been claimed to be ferroelectric and in order to minimize the leakage current it is imperative that the formation if Cr 6þ is avoided. XPS (not shown) was therefore employed to determine the valence of Cr in the present sample.…”

Section: Methodsmentioning

confidence: 99%

Magnetic and magnetocaloric properties of bulk dysprosium chromite

McDannald

Kuna

Jain

2013

Journal of Applied Physics

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In this work, a polycrystalline bulk DyCrO 3 sample was prepared by a solution route and the structural and magnetic properties were investigated. The phase purity and ionic valence state of the DyCrO 3 sample were determined by x-ray diffraction/Raman spectroscopy and x-ray photoelectron spectroscopy, respectively. The AC and DC magnetization measurements revealed the onset of antiferromagnetic order at 146 K with an effective moment of 8.88 l B . Isothermal magnetization measurements of this material are presented for the first time, showing a peak in the coercive field at 80 K that is explained by the competition between the paramagnetic Dy 3þ and Cr 3þ sublattices. DyCrO 3 was found to display a large magnetocaloric effect (8.4 J/kg K) and relative cooling power (217 J/kg) at 4 T applied field, which renders DyCrO 3 useful for magnetic refrigeration between 5 K and 30 K. V C 2013 AIP Publishing LLC. [http://dx.

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Section: Methodsmentioning

confidence: 99%