In this section
@article{Saha:2025:10.1021/acsami.4c20456,
author = {Saha, S and Banik, S and Dutta, A and Paramanik, T and Pakhira, S and Dey, S and Bandyopadhyay, S and Mazumdar, C and Das, I},
doi = {10.1021/acsami.4c20456},
journal = {ACS Appl Mater Interfaces},
pages = {20060--20074},
title = {Role of Co/Mn Interaction in Developing Griffiths Phase with Reducing Particle Size in La2CoMnO6.},
url = {http://dx.doi.org/10.1021/acsami.4c20456},
volume = {17},
year = {2025}
}
TY - JOUR
AB - A comprehensive study on the transition from the non-Griffiths phase (NGP) to the Griffiths phase (GP) is reported in double-perovskite La2CoMnO6 with the reduction of particle sizes. The bulk compound exhibits two ferromagnetic (FM) transitions, a prominent one below around TC ∼ 155 K and a weak one below TC1 ∼ 85 K. However, the materials in the nanocrystalline form show only one FM transition below TC ∼ 220 K. Interestingly, short-range FM interactions consisting of small FM clusters have been observed above TC for all of the systems. However, the nature of intercluster interactions of the preformed FM clusters in the PM matrix differs in bulk and nanomaterials. The antiferromagnetic (AFM) and FM intercluster interactions, respectively, result in the evolution of NGP in bulk and GP in nanomaterials. A detailed magnetization and transport study along with the theoretical analysis reveal that the existent AFM intercluster interaction and the enhanced antisite disorder (ASD) restrict the formation of GP in the bulk material. In contrast, due to the FM intercluster interaction and, as a consequence of the pronounced grain boundary as well as surface pressure effects in core-shell nanostructured materials, ASDs are reduced and GP emerges in those systems.
AU - Saha,S
AU - Banik,S
AU - Dutta,A
AU - Paramanik,T
AU - Pakhira,S
AU - Dey,S
AU - Bandyopadhyay,S
AU - Mazumdar,C
AU - Das,I
DO - 10.1021/acsami.4c20456
EP - 20074
PY - 2025///
SP - 20060
TI - Role of Co/Mn Interaction in Developing Griffiths Phase with Reducing Particle Size in La2CoMnO6.
T2 - ACS Appl Mater Interfaces
UR - http://dx.doi.org/10.1021/acsami.4c20456
UR - https://www.ncbi.nlm.nih.gov/pubmed/40127173
VL - 17
ER -