Metamagnetism in Nanosheets of Co II -MOF with T N at 26 K and a Giant Hysteretic Effect at 5 K

Herein, we have synthesized at room-temperature two-dimensional nanosheets of a MOF comprised of cobalt(II) ion with benzenedicarboxylic acid  ligand, which exhibited unusual magnetic properties. Direct-current magnetic susceptibility revealed an antiferromagnetic (AFM) transition at 26 K (Néel temp...

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Bibliographic Details
Published in:Inorganic chemistry 2018-12, Vol.57 (24), p.15044-15047
Main Authors: Gupta, Kriti, Dadwal, Arun, Rana, Shammi, Jha, Plawan Kumar, Jain, Anil, Yusuf, S M, Joy, Pattayil A, Ballav, Nirmalya
Format: Article
Language:English
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Summary:Herein, we have synthesized at room-temperature two-dimensional nanosheets of a MOF comprised of cobalt(II) ion with benzenedicarboxylic acid  ligand, which exhibited unusual magnetic properties. Direct-current magnetic susceptibility revealed an antiferromagnetic (AFM) transition at 26 K (Néel temperature,  T ) followed by a canting of the spin moments along with the concomitant appearance of a sigmoidal-shaped magnetization versus field ( M- H) curve at 15 K. Such a canted AFM ordering led to nonzero remnant magnetization with a remarkably high coercive field of ∼10 kOe at 5 K. Metamagnetism was further substantiated by the alternating-current magnetic susceptibility measurements.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.8b03064