A5082098936- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Magnetism in coordination complexes
- Magnetic and transport properties of perovskites and related materials
- High-pressure geophysics and materials
- Analytical Chemistry and Sensors
- Lanthanide and Transition Metal Complexes
- Rare-earth and actinide compounds
- Conducting polymers and applications
- Superconductivity in MgB2 and Alloys
- Organic and Molecular Conductors Research
- Molecular Junctions and Nanostructures
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and devices
- Organic Electronics and Photovoltaics
- Iron-based superconductors research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetic properties of thin films
- Superconducting Materials and Applications
- Porphyrin and Phthalocyanine Chemistry
- Inorganic Chemistry and Materials
- Multiferroics and related materials
- Metal complexes synthesis and properties
- Transition Metal Oxide Nanomaterials
Bhabha Atomic Research Centre
2006-2024
Homi Bhabha National Institute
2013-2021
Department of Atomic Energy
2008-2016
Bhabha Atomic Research Center Hospital
2004-2013
G.S. Science, Arts And Commerce College
2011
Goa University
2011
Indian Institute of Technology Bombay
1991-2010
Savitribai Phule Pune University
2009
Barkatullah University
2007
Institute of Physics, Bhubaneshwar
2007
The account given here of the macroscopic and microscopic physical properties antiferromagnetic (AFM) chromium alloys supplements previous review spin-density-wave (SDW) antiferromagnetism in pure Cr. existence an incommensurate spin-density wave results from Fermi-surface nesting, which changes with electron concentration as atoms different valence are introduced into This gives rise for most impurities to a prototypical composition-temperature ($x\ensuremath{-}T$) magnetic phase diagram,...
The transparent, double bridged-(R)-spiral three-dimensional polymeric complex K0.4[Cr(CN)6][Mn(S)-pn](S)-pnH0.6 ((S)-pn=(S)-1,2-diaminopropane) has been synthesized and characterized (see X-ray structure; Cr: brown, Mn: red, C: gray, N: blue, K: green). Magnetic measurements on the show that MnII CrIII ions interact ferrimagnetically magnetic transition occurs at 53 K (Curie temperature).
A highly reversible (bipolar) switching of magnetization in a Prussian blue type molecular magnet Cu0.73Mn0.77[Fe(CN)6]⋅zH2O using low magnetic fields is demonstrated. The studied compound also shows both positive and negative magnetocaloric effects below its ordering temperature. field theory calculation has been done to explain the observed temperature dependent reversal behavior. Possible applications pole phenomenon magnetoelectronic devices such as memory cooling/heating based constant...
Dynamic light scattering (DLS), small-angle neutron (SANS), and viscosity studies have been carried out to examine the influence of NaCl ethanol on structure triblock copolymer [(EO)20(PO)70(EO)20] (EO = ethylene oxide; PO propylene oxide) micelles in aqueous medium. The show that while pure solutions do not any significant growth approaching cloud point, presence a small amount (5-10%) induces sphere rod shape transition at high temperatures. Interestingly, this induced can be brought down...
Reversible release or reabsorption of water like sponges, a process which is accompanied by dramatic change structure and magnetic properties, can be achieved some molecular materials. When the sponges are hydrated, wet, consists isolated units with nonmagnetic ground state. dehydrated, dry, linked to each other, affording polymeric molecule-based magnets (see picture).
The two compounds CoCu(obbz)(H2O)4·2H2O (I) and CoCu(obze)(H2O)4·2H2O (II) have been synthesized, their crystal structures determined at room temperature. Both crystallize in the monoclinic system, space group P21/n. lattice parameters are a = 7.8190(6) Å, b 12.534(2) c 20.2770(10) β 97.306(6)°, Z 4 for 17.966(5) 6.907(1) 13.678(3) 97.69(1)°, CoCu(obze)(H2O)4·2H2O. For both compounds, structure consists of isolated Co2+Cu2+ pairs (in which metal ions bridged by an oxamide group)...
Substitutional solid solutions of metal hexacyanometalates in which low-spin iron(III) and cobalt(III) ions populate the carbon-coordinated sites were synthesized studied by powder diffraction including Rietveld refinement, cyclic voltammetry immobilized microparticles, diffuse reflection vis-spectrometry, magnetization techniques. The continuous solution series potassium copper(II), nickel(II), [(hexacyanoferrate(III))1-x (hexacyanocobaltate(III))x] show that substitution hexacyanometalate...
Diffusion bonded very low resistance electrical contacts (specific contact <10 µΩ cm2) have been developed on n-type PbTe and p-type TAGS-85 ((AgSbTe2)0.15(GeTe)0.85) thermoelements. Thermoelectric devices (TEDs) having two p–n couples in series (each of four elements 7.5 mm diameter) generated an output power 1.2 W (at operating current ~17 A) at hot side temperature Th = 500 °C a difference ΔT 410 °C. Internal the was found to increase linearly with number The efficiency TEDs be 6%....