Articles with "griffiths phase" as a keyword



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Emergence of Griffiths phase and magnetocaloric behavior in electron doped Ca0.85Nd0.15MnO3

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Published in 2019 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-00614-0

Abstract: A detailed study of temperature and magnetic field dependent magnetic properties of electron doped polycrystalline manganite Ca0.85Nd0.15MnO3 (CNMO) has been reported. Nd doping at the Ca site induces ferromagnetism through the interruption in the long… read more here.

Keywords: 85nd0 15mno3; temperature; electron doped; ca0 85nd0 ... See more keywords
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Evolution from non-Griffiths phase to Griffiths phase: Giant enhancement of magnetoresistance in nanocrystalline (La0.4Y0.6)0.7Ca0.3MnO3 compound

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Published in 2018 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2018.02.243

Abstract: Abstract The particle size driven modification of the non-Griffiths phase to Griffiths phase in (La0.4Y0.6)0.7Ca0.3MnO3 (LYCMO) compound have been presented here. In the nanocrystal, the decreased lattice distortions together with the quenched disorder arising from… read more here.

Keywords: phase griffiths; enhancement; compound; non griffiths ... See more keywords

Size modulated Griffiths phase and spin dynamics in double perovskite Sm1.5Ca0.5CoMnO6

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2018.08.060

Abstract: Abstract Griffiths phase like behavior has been investigated in details in size modulated Sm1.5Ca0.5CoMnO6 double perovskite, having ferromagnetic entities in the paramagnetic matrix. Temperature dependent real and imaginary part of ac susceptibility confirms that Sm1.5Ca0.5CoMnO6-1150 °C… read more here.

Keywords: griffiths phase; 5ca0 5comno6; size modulated; spin ... See more keywords
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Griffiths phase in antiferromagnetic CuCr0.95Ti0.05O2

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2019.04.065

Abstract: Abstract Delafossite compound, CuCrO2, popularly known as transparent conducting oxide, has previously been reported to demonstrate antiferromagnetic ordering of the triangular magnetic lattice below 24 K. We find that mere 5% Ti-substitution at Cr-site, leads to… read more here.

Keywords: griffiths phase; phase antiferromagnetic; range; magnetic field ... See more keywords
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Evolution of Griffiths phase and spin reorientation in perovskite manganites

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2019.165611

Abstract: Abstract Magnetic properties of polycrystalline La1-xCaxMn0.9Cu0.1O3 (0.02 ≤ x ≤ 0.4) have been investigated in detail. All samples show a clear ferromagnetic-paramagnetic transition. The Curie temperature TC decreases with increasing Ca-dopant. Inverse susceptibility of all the samples deviates from… read more here.

Keywords: griffiths phase; phase spin; evolution griffiths; phase ... See more keywords
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Magnetocaloric effect and Griffiths phase analysis in a nanocrystalline Ho2NiMnO6 and Ho2CoMnO6 double perovskite

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Published in 2023 at "RSC Advances"

DOI: 10.1039/d3ra00199g

Abstract: Rare-earth double perovskite oxides have intriguing magnetocaloric properties at cryogenic temperatures. In this study, Ho2NiMnO6 and Ho2CoMnO6 were synthesized using the sol–gel method, which crystallized in a monoclinic structure in the P21/n space group. The… read more here.

Keywords: ho2nimno6 ho2comno6; griffiths phase; double perovskite; phase ... See more keywords
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Dynamic phase transition in the contact process with spatial disorder: Griffiths phase and complex persistence exponents.

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Published in 2020 at "Physical review. E"

DOI: 10.1103/physreve.101.022128

Abstract: We present a model which displays the Griffiths phase, i.e., algebraic decay of density with continuously varying exponents in the absorbing phase. In the active phase, the memory of initial conditions is lost with continuously… read more here.

Keywords: griffiths phase; persistence; continuously varying; phase ... See more keywords