Browsing Division of Physical and Mathematical Sciences by Title
Now showing items 441-460 of 1313
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Hydrodynamic and hydromagnetic instabilities leading to turbulence in astrophysical accretion disks and their connection to laboratory shear flows
Accretion disks are astrophysical objects formed around a denser object, mainly in the form of a disk. In an accretion disk, matter spirals in and falls onto the central object. To match the observations, the underlying ... -
Hydrogen passivation and photoconductivity in Si/Si1-xGex and Si1-xGex/Ge modulation doped heterostructures
In conclusion, we have shown for the first time that the parallel conduction and other kinds of parasitic contributions to the channel mobility can be reduced effectively by hydrogen passivation, and an enhancement in the ... -
Hydromagnetic surface waves
The ASW propagates as a dispersive wave along the boundaries of a bounded plasma column. At the interface of a plasma slab surrounded by two identical plasma media, two modes-symmetric and asymmetric-propagate with a phase ... -
Hyperfine Structure-Measurement in Alkali-metal Atoms and Ytterbium Atom
(2018-02-15)Atomic precision measurements provide a strong testing ground for new theoretical ideas and fundamental laws of physics. Measurement of the Lamb shift in the hydrogen atom is one of the best examples towards this -it ... -
Hyperspectral and Spectropolarimetric Instrumentation for the Solar Atmosphere
The Sun is the closest star whose surface can be resolved to great a detail. Understanding the working of Sun helps in understanding a large fraction of stellar system as it falls under the spectral class G2V which is ... -
Hysterisis in model spin systems.
In this thesis a systematic study of hysteresis in model spin systems is undertaken by constructing the first statistical-mechanical theory wherein spatial fluctuations of the order parameter are incorporated. The theory ... -
Imaging and Spectral Studies of Solar type I Noise Storms at Metric Wavelengths
(Indian Institute of Science, 2005-02-01)Type I noise storms constitute a sizeable fraction of the active-Sun component of solar radiation at meter wavelengths. The storms occur over a prolonged duration as intense, narrow-band spikes, superposed on a low-intensity ... -
Impact of Disorder and Topology in Two Dimensional Systems at Low Carrier Densities
(2018-02-15)Two dimensional (2D) systems with low carrier density is an outstanding platform for studying a wide spectrum of physics. These include both classical and quantum effects, arising from disorder, Coulomb interactions and ... -
Impact of Disorder, Magnetism and Proximity-Induced Superconductivity on Conductance Fluctuations in Graphene
(2018-01-31)The experimental discovery of graphene in 2004 has opened up a new research field in the direction of atomically thin two-dimensional layered materials for exploration of many fundamental research problems and technological ... -
Impact of van der Waals epitaxy on structural and optoelectronic properties of layered solids
Emergence of Graphene, Transition metal dichalcogenides (TMDCs) and other van der Waals materials promises to rede fine the building blocks of the future materials and technologies. These materials have gained enormous ... -
Implications in substrate recognition, catalysis and drug-design Structural basis for neutralization of ribosome-inactivating proteins by their monoclonal antibodies
Cryptic elements of proteins are not visible in unbound structures but become apparent in ligand/substrate-bound structures. These binary states of cryptic elements in protein structures can impact important aspects of ... -
Improvements on hadronic form factors using analyticity and unitarity constraints
Form factors are of central importance in strong interaction dynamics. While electromagnetic form factors are an important source of information about the internal structure of hadrons, the knowledge of the weak transition ... -
In-Line Diagnostics for Inkjet Printed Electronics
The development of solution processed thin film circuits involves various process stages. One of the key parameters that decides the performance of the circuit is the semiconductor-insulator interface and the quality of ... -
Induced p-wave superconductivity in a dual topological insulator BiTe and unconventional superconductivity in a magnetic topological insulator MnBi2Te4
The discovery of topological insulators (TI) and semimetals has led to a whole new world of low-energy electronic devices that enable dissipationless transport through their highly spin-orbit coupled conducting channels. ... -
Inferences on Structure and Function of Proteins from Sequence Data : Development of Methods and Applications
(2018-07-23)Structural and functional annotation of sequences of putative proteins encoded in the newly sequenced genomes pose an important challenge. While much progress has been made towards high throughput experimental techniques ... -
Infinitely Divisible Metrics, Curvature Inequalities And Curvature Formulae
(2014-06-30)The curvature of a contraction T in the Cowen-Douglas class is bounded above by the curvature of the backward shift operator. However, in general, an operator satisfying the curvature inequality need not be contractive. ... -
Influence of local structure and network connectivity on the electrical switching of some Te-based chalcogenide glasses
Chalcogenide glass (ChG) materials have gained wide attention because of their applications in phase change non-volatile memories (PC-RAM), optical rewritable disks (CD-RW and DVD-RW), infrared detection and thermal imaging. ... -
The influence of temperature and bias voltage on bulk and two-dimensional bismuth sulfide for optoelectronic applications
The field of optoelectronics seeks sustainable, abundant, and cost-effective materials that can reliably perform under varying environmental conditions. Bismuth sulfide (Bi2S3), a narrow bandgap (1.3 eV) semiconductor has ...