Heat Capacity, Magnetic And Lattice Dynamic Properties Of Pseudo-two Dimensional: M2Fe2O(AsO4)2 [M=K, K0.79Cs0.21 and Rb] Compounds
Pramod Kumar1*, Rashmi Singh1, L. D. Sanjeewa2, Rachana Kumar3**
Adv. Mater. Lett., 2016, 7 (12), pp 964-970
DOI: 10.5185/amlett.2016.6450
Publication Date (Web): Oct 12, 2016
Copyright © 2019 VBRI Press
E-mail:pkumar@iiita.ac.in; rachanak@nplindia.org
In this paper, structural, magnetic and heat capacity of M2Fe2O(AsO4)2 compounds have been reported. Most interestingly, the magnetization at very low fields a complete negative magnetization was observed in both field cooling and zero field cooling in K2Fe2O(AsO4)2 and Rb2Fe2O(AsO4)2 compounds whereas field cooled is positive in KCsFe2O(AsO4)2. A possible mechanism for the observed peculiar magnetic behavior is discussed, related to the competition of the single-ion magnetic anisotropy and the antisymmetric magnetization behavior in two crystallographically different FeO6 centers. We estimated the gap (D) opening at low temperature K2Fe2O (AsO4)2 KCs2Fe2O (AsO4)2 and Rb2Fe2O (AsO4)2, are 23.6 K, 23.9 K and 25 K respectively from heat capacity. Magnetic part of heat capacity at low temperatures follows the T3 dependence, indicates that the low temperature magnetic state in all these compounds are antiferromagnetic.
Researcher of the Year 2019: Professor Enge Wang – A Legendary Researcher of Atomistic World
Graphene in Russia: The Main Centers, Research Areas, Results
Principles and practices of Si light emitting diodes using dressed photons
Dual Effect of Light Irradiation for Surface Relief Gratings Formation in Se-rich Ge-Se Thin Films
Synthesis, Structural Characterization, Dielectric and Piezoelectric Properties of Multiferroic Double-perovskite Bi2FeMnO6 Ceramics
Anisotropic and Nonlinear Mechanical Properties in Two-dimensional Nanomaterials
Anisotropy of Mechanical Properties of an AZ31 Alloy Prepared by SPD Method
Validation of Advanced Constitutive Models for Accurate FE Modeling of TPU
Alignment of Rods and Flakes using Electric Field
Shape Memory Polymer Composites for Long-Term Exposure to Space Environment
In-soil Biodegradation Behavior of Chitosan-Coated Phosphorylated Starch Films
Adaptive FRP Structures for Exterior Applications
Characterization of Plasma Activated Water for Medical Applications
Current Global Scenario of Electric Vehicles
Review on Detection of Phenol in Water
Investigating the Machinability of Metallic Matrix Composites Reinforced by Carbon Nanotubes: A Review
Photocatalytic ZnO based PES Membranes for AOP Water Treatments under UV and Sunlight
Plasma Activated Water as a Source of Nitrogen for Algae Growth
Digital Light Processing (DLP) 3D Printing of Polyethylene Glycol (PEG) Biopolymer, Commercially available Ultra-High and Tough (UHT) Resin and Maghemite (γ-Fe2O3) Nanoparticles Mixture for Tissue Engineering Scaffold Application
Fabrication of Nanoparticle Embedded Polymeric Microbeads as an Efficient Drug Delivery System
Micro/Nanostructured Papers from Bagasse Pulp Reinforced by Nanofibrillated Cellulose from different Agro-Waste Sources
Structural, Optical and Magnetic Properties of Pristine, (Mn, Al) co-doped ZnO Nanocrystallites Synthesized via co-Precipitation Method
Nanosecond Laser Surface Patterning of Ti6Al4V Bio-alloy for Improved Biological Performance
Synthesis of Cu2O/Ag Composite Nanocubes with Promising Photoluminescence and Photodegradation Activity over Methylene Blue Dye
Locally available Clays of Bangladesh as a Replacement of imported Clays for Ceramic Industries
Green Synthesis and Characterization of Silver Nanoparticles using Cassia auriculata Leaves Extract and Its Efficacy as A Potential Antibacterial and Cytotoxic Effect
_1572929082.jpg)
Copyright ©2010-2019 VBRI Press
Full Article