In this research work Y0.85Gd0.15CrO3 nanoparticles are synthesized following sol-gel method.
Characterization is done by XRD, TEM measurements. XRD pattern proves the well crystalline
characteristics and TEM image gives the nanocrystalline nature. Frequency dependence of the dielectric
permittivity is estimated for different temperatures in the span of 20 Hz to 2 MHz. The dielectric relaxation
spectra using electric modulus formalism is analysed for the sample. Following the electric modulus
formalism relaxation time is calculated. Ac activation is also calculated by applying Arrhenius law. The
M///M//max vs frequency graph for different temperatures shows that all dynamical process taking place for
individual temperatures have same activation energy.
1Department of CSE(AI), Institute of Engineering and Management, Kolkata-700091
2Department of CSE(AI), Institute of Engineering and Management, Kolkata-700091
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The model was used to study fuel leasing possibilities after a system dynamics model was built to
simulate fuel cycle interactions between two different nuclear organisations. The model was also used
to assess the proliferation and economic consequences of a global leasing policy. An open fuel cycle
results in large spent-fuel buildup in a nuclear expansion scenario. The leased fuel cycle, when
combined with enhanced security and safety technologies, has the ability to alleviate proliferation
concerns in a closed fuel cycle.
1Department of Basic Science and Humanities, Abacus Institute of Engineering and Management,Mogra, Hooghly, India-712148
2Principal-in-Charge, Abacus Institute of Engineering and Management, Mogra, Hooghly, India-712148
3 2nd Year B.Tech. Student, Department of Electronics & Communication Engineering, Abacus Institute of Engineering and Management, Mogra, Hooghly, India-712148
4Department of BS&HU (Physics), Asansol Engineering College, Kanyapur, Asansol, India-713305
52nd Year B.Tech. Student, Department of Information Technology, Asansol Engineering College, Kanyapur, Asansol, India-713305
6Department of Physics, National Institute of Technology, Durgapur, India-713209
The effect of rare earth transition metal (Tb) ions doping in A site of bismuth ferrite (BFO) nanoparticles
are studied from electrical, dielectric and magneto-dielectric aspects. A detailed study on dielectric
properties of the Tb doped bismuth ferrite nanoparticles is done over a wide temperature range in a
frequency range of 20 Hz - 2 MHz. Observation on magneto-dielectric response of the sample is done at
room temperature upon applying external transverse magnetic field.
Keywords: Bismuth ferrite, Electrical measurements, Electric modulus spectroscopy, Magneto-dielectric response
One of the most crucial variables to consider while analysing the current conduction process in the metal
organic Schottky contact is the Richardson constant. However, there aren't many publications on the
determination of the useful Richardson constant for Fruit dyes. For two different Fruit dyes, Carmoisine,
and Tartrazine, we have determined the values of the effective Richardson constant in this work. By using
the spin coating method, a thin organic layer of these natural colours was sandwiched between a copper
plate and a piece of glass that had been coated in indium tin oxide. The current-voltage-temperature
response of the cells was examined at a temperature range of 303K to 333K. The estimated effective
Richardson constants for these dyes are 95.09 x 10-3 A/cm2K2
and 44.35 x 10-3 A/cm2K2 for CS and TZ dye respectively, which are different from the typical value of 120 A/cm2K2. We can analyse several
electrical properties for these natural dyes with the aid of these values.
We present first principles density functional theory (DFT) calculations within the generalized gradient
approximation for the exchange-correlation functional in order to gain microscopic understanding,
electronic and microscopic properties of CuInO(VO4). We discuss explicitly the electronic properties,
nature of the exchange paths and estimate magnetic exchange interactions. Focusing on the calculated
magnetic interactions and electronic structure of CuInO(VO4) puts it in the class of weakly coupled low
dimensional antiferromagnetic tetramer with spin S=1/2.
Keywords:Electronic Structure, Magnetic Exchange Interaction, Wannier Function, Microscopic Modelling
