DataVXACS Applied Nano MaterialsPaper
journal article·2023-07-14

Mg-Doped CoCr2O4 Nanoparticles: Implications for Magnetic Memory and Magnetocaloric Effect

Krishtappa Manjunatha, Hsin-Hao Chiu, Ming-Kang Ho, Tsu-En Hsu, Shih-Lung Yu, Chu-En Chin, Chia-Liang Cheng, Marisa Carvalho de Oliveira, Elson Longo, Renan A. P. Ribeiro, Hanumanthappa Nagabhushana, Sheng Yun Wu

ACS Applied Nano Materials· Volume 6· Issue 13
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Source abstract

Abstract

Using the co-precipitate method, Mg-doped CoCr 2 O 4 nanoparticles (NPs) with a particle size ranging from 11 to 22 nm were synthesized, and their structural, surface, vibrational, and magnetic properties were examined through experimental and theoretical approaches. The inherent magnetic inhomogeneity of the NPs was found to be the cause of the observed exchange bias effect. The magnetic memory effect was studied below the spin glass-transition temperature using time- and temperature-dependent magnetization measurements, and the magnetocaloric effect was investigated across the Curie temperature. These NPs show promising potential for magnetic memory and magnetocaloric effect fields.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glassesNanomaterials

OpenAlex topics: Multiferroics and related materials · Magnetic Properties and Synthesis of Ferrites · Advanced Condensed Matter Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan

Functional Materials Development Center (CDMF), Federal University of São Carlos─UFSCar, 13565-905 São Carlos, São Paulo, Brazil

Department of Natural and Earth Sciences, Minas Gerais State University─UEMG, 35501-170 Divinópolis, Minas Gerais, Brazil

Prof. C.N.R. Rao Centre for Advanced Materials, Tumkur University, Tumkur 572103, India

Funding

Fundação de Amparo à Pesquisa do Estado de Minas Gerais · Fundação de Amparo à Pesquisa do Estado de São Paulo · National Science and Technology Council

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