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

被引：11

作者：

Manjunatha, Krishtappa ^{[1
]}

Chiu, Hsin-Hao ^{[1
]}

Ho, Ming-Kang ^{[1
]}

Hsu, Tsu-En ^{[1
]}

Yu, Shih-Lung ^{[1
]}

Chin, Chu-En ^{[1
]}

Cheng, Chia-Liang ^{[1
]}

de Oliveira, Marisa Carvalho ^{[2
]}

Longo, Elson ^{[2
]}

Ribeiro, Renan A. P. ^{[3
]}

Nagabhushana, Hanumanthappa ^{[4
]}

Wu, Sheng Yun ^{[1
]}

机构：

[1] Natl Dong Hwa Univ, Dept Phys, Hualien 97401, Taiwan

[2] Fed Univ Sao Carlos UFSCar, Funct Mat Dev Ctr CDMF, BR-13565905 Sao Paulo, SP, Brazil

[3] Minas Gerais State Univ UEMG, Dept Nat & Earth Sci, BR-35501170 Divinopolis, MG, Brazil

[4] Tumkur Univ, Prof CNR Rao Ctr Adv Mat, Tumkur 572103, India

来源：

ACS APPLIED NANO MATERIALS | 2023年 / 6卷 / 13期

基金：

巴西圣保罗研究基金会;

关键词：

density functional theory; exchange bias effect; magnetic memory effect; magnetocaloric effect; ferrimagnetic; spin glass structures; SPIN; TEMPERATURE; TRANSITIONS; STATE;

D O I：

10.1021/acsanm.3c01817

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Using the co-precipitate method, Mg-doped CoCr2O4 nanoparticles (NPs) with a particle size ranging from11to 22 nm were synthesized, and their structural, surface, vibrational,and magnetic properties were examined through experimental and theoreticalapproaches. The inherent magnetic inhomogeneity of the NPs was foundto be the cause of the observed exchange bias effect. The magneticmemory effect was studied below the spin glass-transition temperatureusing 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 magnetocaloriceffect fields.

引用

页码：12002 / 12015

页数：14

共 50 条

[1] Unraveling the structural and magnetic characteristics of Mg doped CoCr2O4
Garima
Dhaka, Saroj
Singh, Vidyadhar
Thakur, Anmol
Choudhary, B. L.
Kumar, Sushant
Mund, H. S.
MATERIALS LETTERS, 2024, 377
[2] Magnetic field dependence of magnetic coupling in CoCr2O4 nanoparticles
Akyol, Mustafa
Adanur, Idris
Ayas, Ali Osman
Ekicibil, Ahmet
PHYSICA B-CONDENSED MATTER, 2017, 525 : 144 - 148
[3] Magnetic properties of sonochemically synthesized CoCr2O4 nanoparticles
Dutta, Dimple P.
Manjanna, J.
Tyagi, A. K.
JOURNAL OF APPLIED PHYSICS, 2009, 106 (04)
[4] Magnetic Transitions in Chemically Synthesized Nanoparticles of CoCr2O4
Galivarapu, Jagadish K.
Kumar, D.
Banerjee, A.
Rath, Chandana
IEEE TRANSACTIONS ON MAGNETICS, 2016, 52 (08)
[5] Multiferroic nanoparticles of Ni doped CoCr2O4: An XPS study
Mohanty, Pankaj
Ganga, Ganga B.
Carleschi, Emanuela
Sheppard, Charles J.
Prinsloo, Aletta R. E.
SURFACE SCIENCE SPECTRA, 2020, 27 (01):
[6] Field Induced Magnetic Properties of Ni Doped CoCr2O4
Mohanty, P.
Sheppard, C. J.
Prinsloo, A. R. E.
DAE SOLID STATE PHYSICS SYMPOSIUM 2018, 2019, 2115
[7] Coexistence of exchange bias and memory effect in nanocrystalline CoCr2O4
Goswami, S.
Gupta, P.
Bedanta, S.
Chakraborty, M.
De, D.
Journal of Alloys and Compounds, 2022, 890
[8] Study of exchange bias and memory effect in core-shell CoCr2O4 nanoparticles
Kumar, G. Jagadish
Rath, Chandana
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2018, 466 : 69 - 74
[9] Coexistence of exchange bias and memory effect in nanocrystalline CoCr2O4
Goswami, S.
Gupta, P.
Bedanta, S.
Chakraborty, M.
De, D.
JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 890
[10] Exchange bias effect in spin glass CoCr2O4 nanoparticles
Zhu, Changming
Tian, Zhaoming
Wang, Liguang
Yuan, Songliu
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 393 : 116 - 120

← 1 2 3 4 5 →