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Ferrimagnetism, exchange bias and spin-glass property of disordered La2CrNiO6

Palakkal, Jasnamol P. and Faske, Tom and Major, Marton and Radulov, Iliya and Komissinskiy, Philipp and Alff, Lambert (2020):
Ferrimagnetism, exchange bias and spin-glass property of disordered La2CrNiO6.
In: Journal of Magnetism and Magnetic Materials, 508, p. 166873. Elsevier, ISSN 03048853,
DOI: 10.1016/j.jmmm.2020.166873,
[Article]

Abstract

A B-site disordered double perovskite La2CrNiO6 is synthesized by citrate-gel combustion method. The material is showing an orthorhombic Pbnm crystal structure which doesn't change upon cooling to 15 K and with an applied field of 50 kOe. Upon cooling from room-temperature to 15 K, a nearly linear dependence in the volume of the crystal structure with temperature is observed until 100 K, which is around the ferrimagnetic transition temperature of the material. The disordered Cr and Mn introduced inhomogeneous magnetic interactions, leading to Griffiths-like phase (GP) and spin glass state in the material. The material shows an exchange bias effect, owing to the GP and spin glass state. Mott's variable range hopping is the conduction mechanism of the insulating disordered double perovskite La2CrNiO6.

Item Type: Article
Erschienen: 2020
Creators: Palakkal, Jasnamol P. and Faske, Tom and Major, Marton and Radulov, Iliya and Komissinskiy, Philipp and Alff, Lambert
Title: Ferrimagnetism, exchange bias and spin-glass property of disordered La2CrNiO6
Language: English
Abstract:

A B-site disordered double perovskite La2CrNiO6 is synthesized by citrate-gel combustion method. The material is showing an orthorhombic Pbnm crystal structure which doesn't change upon cooling to 15 K and with an applied field of 50 kOe. Upon cooling from room-temperature to 15 K, a nearly linear dependence in the volume of the crystal structure with temperature is observed until 100 K, which is around the ferrimagnetic transition temperature of the material. The disordered Cr and Mn introduced inhomogeneous magnetic interactions, leading to Griffiths-like phase (GP) and spin glass state in the material. The material shows an exchange bias effect, owing to the GP and spin glass state. Mott's variable range hopping is the conduction mechanism of the insulating disordered double perovskite La2CrNiO6.

Journal or Publication Title: Journal of Magnetism and Magnetic Materials
Journal volume: 508
Publisher: Elsevier
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology
11 Department of Materials and Earth Sciences > Material Science > Functional Materials
11 Department of Materials and Earth Sciences > Material Science > Structure Research
Date Deposited: 24 Jul 2020 06:52
DOI: 10.1016/j.jmmm.2020.166873
Official URL: https://doi.org/10.1016/j.jmmm.2020.166873
Projects: J.P.P. is thankful to the Ingenium, TU Darmstadt and Deutsche Forschungsgemeinschaft (DFG) (429646908) for the financial support received.
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