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Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
Unravelling the signatures of effective spin1/2moments in CeVO4: magnetization and heat capacity study
1School of Basic Sciences, Indian Institute of Technology Mandi, Mandi 175005, Himachal Pradesh, India.
Abstract:
The realization of an effective spin (J) ½ state at low temperatures offers a platform to study the enthralling physics behind the disordered states in certain systems. Here, we report the signatures of magnetic ground state associated withJ= ½ in CeVO4. Our studies confirm the absence of any ordering or freezing down to 1.8 K. In the low temperature region, the Curie-Weiss fit of the inverse DC susceptibility indicate towards the presence of antiferromagnetic correlations among the Ce3+spins. The calculated value of effective moment (∼1.16μB) corresponds toJ= ½ withg∼ 1.20. Further, the field dependent magnetization curve at 2 K follows a behaviour corresponding toJ= ½ Brillouin function withg∼ 1.13. Magnetic field dependent heat capacity fits very well with two-level Schottky scheme. Our investigations suggest that CeVO4can be a promising candidate to realiseJ= ½ properties among 3D spin systems.
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