Browsing Department of Physics by Issue Date

Studies on certain vanadium pentoxide based semiconducting oxide glasses exhibiting majority charge carrier reversal phenomenon

Sharma, Bachaspatimayum Indrajit (2002)

Vanadium Pentoxide (V2O5) based glasses form an important class of amorphous semiconductors. V2O5 based glasses are normally n-type semiconductors. The possibility of obtaining p-type semiconductors in some V2O5 based ...

Study of N=1 and N=2 supersymmetric integrable hierarchies and their soliton solutions

Sarma, Debojit (2002)

Integrable models have seen major advances in the last four decades bringing together various branches of mathematics and having diverse physical applications. Of great interest is the realization that integrable systems ...

Studies on bulk and thin films of lead (Pb) modified chalcogenide glasses

Pattanaik, Akhyaya K (2002)

Chalcogenide glasses contain group VI (A) elements of the periodic table such as Sulphur, Selenium or Tellurium as their major constituent. Chalcogenide glasses are known to be p-type semiconductors. It was reported that ...

Electrical Resistivity And Ac Susceptibility Studies In Perovskite Manganites

Kar, Manoranjan (2004)

Materials based on manganese oxides are generally known as manganites. The manganites RMnO3 (R= Trivalent rare earth elements) and AMnO3 (A= Divalent alkaline earth elements) are known to be insulating with antiferromagnetic ...

Study of some integrable coupled dynamical systems related to optical solitons and their applications

Borah, Abhijit (2005)

Abstract Not available

Novel configurations of atomic beam and laser beam for micro and nanolithography

Alti, Kamlesh Mukundrao (2005)

Present work mainly focus on two lithographic techniques viz. selective laser ablation lithography and atom lithography using dipole force. The work on atom lithography using dipole is on simulation of atomic trajectories ...

Multiple beams interferometry for array illuminator and its applications

Patra, Ardhendu Sekhar (2005)

The present work is aimed towards generation and characterization of the arrays using various interferometric configurations. Heterodyne interferometric configurations using polarized lights was developed and studied. The ...

Atomistic simulation of point defects in ionic crystals

Sahariah, Munima B (2005)

In this thesis, we have presentrd a comprehensive study of modeling point defects in high and low symmetry crystals with Polarizable Point Ion (PPI) model. We worked out an alternate scheme to estimating energies of point ...

Excess conductivity,magneto-conductivy and AC susceptibility studies in La-Ba-Ca-Cu-O superconducturs

Nayak, Pramoda Kumar (2006)

The discovery of high transition temperature (Tc) superconductivity in (La-Ba)-Cu-O system with Tc = 30 K in1986 by Bednorz and Muller triggered the development of several high Tc Cu- O based superconductors. Among them, ...

Percolation Under Crossed Bias Fields: Criticallity and Scaling

Sinha, Santanu (2007)

A new site percolation model namely the directed spiral percolation (DSP) model is constructed imposing directional and rotational constraints simultaneously on the ordinary percolation model. the DSP model can be used to ...

Preparation and Characterization of Co-Ni-Ga Ferromagnetic Shape Memory Alloys

Sarma, Sidananda (2008)

Shape memory alloys (SMA) have been engineered for various applications and devices since the first discovery of the shape memory effect in the 1930s. The advent of Nitinol (a Ni-Ti alloy) in 1962 established SMAs as a ...

Electrical Resistivity and Magnetic Properties in (La, Ag)-Mn-O, (Nd, Ag)-Mn-O and (Y, Ce)-Mn-O Based Manganites

Srivastava, Sandep Kumar (2008)

One group of fascinating compounds with many potential applications is the mixed valence perovskite manganites. The versatility of perovskite manganites for electronic applications is demonstrated by the fact that, these ...

Structureand magnetic properties of Mechanically alloyed nanocrystalline Fe-Si (-M) [M=AI, B, Cr] Powders

Kalita, Manas Pratim Chakrapani (2008)

Fe-Si based alloys are traditionally well known soft magnetic materials which find applications in split-core current transformers, magnetic cores of electrical appliances, magneto-fluids, magnetic shielding, electromagnetic ...

Role of interlayer couplings in bilayer Superconductors:A variational Monte Carlo Study

Medhi, Amal (2008)

The ground state superconducting and magnetic properties of bilayer cuprate superconductors are studied using a t-J model with interlayer couplings using the variational Monte Carlo (VMC) method. As a separate exercise, ...

MAGNETIC PROPERTIES OF Co AND Mn SUBSTITUTED Fe–Zr–B ALLOYS PREPARED BY MELT SPINNING AND MECHANICAL ALLOYING PROCESSES

Mishra, Debabrata (2009)

Fe-Zr-B based amorphous and nanocrystalline alloys are well known soft magnetic materials which are characterized by high saturation magnetization (MS) and low coercivity (HC). These soft magnetic alloys find wide applications ...

Investigations on Selected Bioactive Glasses and Glass-Ceramics Containing Iron Oxide

Singh, Rajendra Kumar (2009)

Magnetism and magnetic materials have a strong role to play in health care and biological application such as cell separation, drug delivery and magnetic intracellular hyperthermia treatment of cancer. Magnetic bioglass ...

(A) Theoretical Study of Optical Constants of Two Dimensional Carbon Based Materials

Meera, V. (2010)

The electromagnetic response of two dimensional carbon based systems is studied using basic classical tools. The most interesting and important carbon based system known till today is the by now well-known two-dimensional ...

Statistical Field Spectral Calculations in Some Problems of Anisotropic Turbulence

Dutta, Kishore (2010)

In this research work we apply the standard perturbative methods to some anisotropic cases of fluid turbulence and obtain information about the effect of anisotropy within such frameworks. As a matter of fact, the anisotropy ...

Preparation and study of high Quality hydrogenated silicon Films from Amorphous to Microcry stalline Transition Range for Photovoltaic Applications

Gogoi, Purabi (2010)

Abstract not AVAILABLE

Pulsed Laser Deposition and Characterization of AlN, TiO2, and Zn1-xMgxO (0≤x≤0.7) Semiconductor Thin Films

Shukla, Gaurav (2011)

The focus of work presented in this thesis was to understand and optimize the pulsed laser deposition (PLD) process to fabricate thin films of three important wide band gap semiconductors, AlN, TiO2 and Zn1-xMgxO (0DxD0.7). ...

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