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

K Manjunatha, HH Chiu, MK Ho, TE Hsu… - ACS Applied Nano …, 2023 - ACS Publications
Using the co-precipitate method, Mg-doped CoCr2O4 nanoparticles (NPs) with a particle
size ranging from 11 to 22 nm were synthesized, and their structural, surface, vibrational …

Ferroelectricity in spiral short-range-ordered magnetic state of spinel : Significance of topological frustration and magnetoelastic coupling

K Dey, S Majumdar, S Giri - Physical Review B, 2014 - APS
We report the appearance of ferroelectricity below TS= 18 K, at which short-ranged spiral
spin orders, suggesting that MnCr 2 O 4 is an improper multiferroic material. Linear heat …

Memory effects and magnetic relaxation in single-crystalline

N Khan, P Mandal, D Prabhakaran - Physical Review B, 2014 - APS
We report a detailed investigation of magnetic relaxation and memory effects in La 0.9 Sr 0.1
CoO 3 single crystal from dc magnetization measurements. The analysis of magnetic …

Unconventional superparamagnetic behavior in the modified cubic spinel compound

SS Islam, V Singh, K Somesh, PK Mukharjee, A Jain… - Physical Review B, 2020 - APS
Structural, electronic, and magnetic properties of modified cubic spinel compound LiNi 0.5
Mn 1.5 O 4 are studied via x-ray diffraction, resistivity, dc and ac magnetization, heat …

Coexistence of exchange bias and memory effect in nanocrystalline CoCr2O4

S Goswami, P Gupta, S Bedanta, M Chakraborty… - Journal of Alloys and …, 2022 - Elsevier
This article reports exchange bias (EB) and memory effect in nanocrystalline CoCr 2 O 4
with a detailed understanding of the origin of the observed effect. In order to investigate the …

Sm-doped NiO nanoparticles for magnetic memory at room temperature

AC Gandhi, S Tummala, HH Chiu, MK Ho… - ACS Applied Nano …, 2021 - ACS Publications
The search for diluted magnetic semiconductors (DMSs) has gained immense research
interest because of the coexistence of the charge and spin degree of freedom in a single …

Memory effects on the magnetic behavior of assemblies of nanoparticles with ferromagnetic core/antiferromagnetic shell morphology

M Vasilakaki, KN Trohidou, D Peddis, D Fiorani… - Physical Review B …, 2013 - APS
Monte Carlo simulations of the dynamic magnetic behavior of an assembly of ferromagnetic
core/antiferromagnetic shell nanoparticles are reported and compared with the experimental …

[HTML][HTML] Dependence of exchange bias on interparticle interactions in Co/CoO Core/shell nanostructures

S Goswami, P Gupta, S Nayak, S Bedanta, Ò Iglesias… - Nanomaterials, 2022 - mdpi.com
This article reports the dependence of exchange bias (EB) effect on interparticle interactions
in nanocrystalline Co/CoO core/shell structures, synthesized using the conventional sol-gel …

Magnetoelectric Coupling, Ferroelectricity, and Magnetic Memory Effect in Double Perovskite La3Ni2NbO9

K Dey, A Indra, D De, S Majumdar… - Acs Applied Materials & …, 2016 - ACS Publications
We observe ferroelectricity in an almost unexplored double perovskite La3Ni2NbO9.
Ferroelectricity appears below∼ 60 K, which is found to be correlated with the significant …

Dense inter-particle interaction mediated spontaneous exchange bias in NiO nanoparticles

AC Gandhi, J Pant, SY Wu - RSC advances, 2016 - pubs.rsc.org
We report the finite size effect and nickel vacancy defects in NiO nanoparticles that result in
the formation of magnetic phase separation in uncompensated antiferromagnetic NiO-cores …