A Study of the Flexural Properties of Carbon-Epoxy Composites in Certain Environments. (9999)
Lee, C. C., Freischmidt, G., Coutts, R. S. P., Crosky, A. G., Bandyopadhyay, S.
X Post-cure effects
Fracture Study of a Polyacetal Resin. (9999)
Bandyopadhyay, S., Roseblade, J. R., Muscat, R.
Fracture experiments have been carried out with unnotched and notched tensile specimens of a polyacetal resin at room temperature at various rates of extension. An increase of approximately 13% in...
Kanchibotla, B., Pramanik, S., Bandyopadhyay, S., Cahay, M.
We report measurement of the ensemble averaged transverse spin relaxation time (T2*) in bulk and few molecules of the organic semiconductor tris(8-hydroxyquinolinolato aluminum) or Alq3. This system...
The inequality of charge and spin diffusion coefficients (2008)
Pramanik, S., Bandyopadhyay, S., Cahay, M.
Since spin and charge are both carried by electrons (or holes) in a solid, it is natural to assume that charge and spin diffusion coefficients will be the same. Drift-diffusion models of spin...
Single spin universal Boolean logic (2008)
Agarwal, H., Pramanik, S., Bandyopadhyay, S.
Recent advances in manipulating single electron spins in quantum dots have brought us close to the realization of classical logic gates based on representing binary bits in spin polarizations of...
Gene identification: Classical and computational intelligence approaches (2008)
Bandyopadhyay, S., Maulik, U., Roy, D.
Automatic identification of genes has been an actively researched area of bioinformatics. Compared to earlier attempts for finding genes, the recent techniques are significantly more accurate and...
Field Emission from Self-Assembled Arrays of Lanthanum Monosulfide Nanoprotrusions (2008)
V. Semet, Vu Thien Binh, M. Cahay, K. Garre, S. Fairchild, L. Grazulis, ...
The field emission properties of LaS nanoprotrusions called nanodomes, formed by pulsed laser deposition on porous anodic alumina films, have been analyzed with scanning anode field emission...
Wan, J., Cahay, M., Bandyopadhyay, S.
We show that a Spin Field Effect Transistor, realized with a semiconductor quantum wire channel sandwiched between half-metallic ferromagnetic contacts, can have Fano resonances in the transmission...
Wan, J., Cahay, M., Bandyopadhyay, S.
We propose and analyze a novel dual-gate Spin Field Effect Transistor (SpinFET) with half-metallic ferromagnetic source and drain contacts. The transistor has two gate pads that can be biased...
Wang, Hao, Zhang, H. F., Hu, Z. Q., Bandyopadhyay, S., Zeng, Q., Berndt, C., ...
A Zr-based bulk metallic glass (BMG) alloy with the composition (Zr55Al10Ni5Cu30)98.5Si1.5 was used as the base material to form BMG composites. Tungsten fiber reinforced BMG composites were...
Wang, Hao, Zhang, H. F., Hu, Z. Q., Bandyopadhyay, S., Zeng, Q., Berndt, C., ...
A Zr-based bulk metallic glass (BMG) alloy with the composition (Zr55Al10Ni5Cu30)98.5Si1.5 was used as the base material to form BMG composites. Tungsten fiber reinforced BMG composites were...
Computer Aided Design (CAD) of a Multi-component Condenser (2007)
Bandyopadhyay, S., Alam, M.S., Agrawal, V.K., Wasewar, K.L.
In the case of multi-component condensation the ‘condensing vapour contains a mixture of components having different boiling points, which condense over a wide temperature range, either in presence...
Modelling vulnerability in the UK (2007)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" (Townsend 1994) within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK using Waves 1 -...
Modelling vulnerability in the UK (2007)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" (Townsend 1994) within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK using Waves 1 -...
Modelling vulnerability in the UK (2007)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" (Townsend 1994) within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK using Waves 1 -...
Density measurements of shock compressed matter using short pulse laser diagnostics (2007)
Koenig, M, Ravasio, A, Benuzzi-Mounaix, A, Loupias, B, Ozaki, N, Borghesi, M, ...
In this paper, experimental results on X-ray and proton radiography of shock compressed matter are presented. It has been performed at the Rutherford Appleton Laboratory (RAL) using three long pulse...
We show that the arguments in the posting cond-mat/0607432 by Flatte and Hall are flawed and untenable. Their spin based transistor cannot work as claimed because of fundamental scientific barriers,...
In a recent e-print [cond-mat/0603260] Hall and Flatte claim that a particular spin based field effect transistor (SPINFET), which they have analyzed, will have a lower threshold voltage, lower...
Wan, J., Cahay, M., Bandyopadhyay, S.
Current understanding of spin injection tells us that a metal ferromagnet can inject spin into a semiconductor with 100% efficiency if either the ferromagnet is an ideal half metal with 100% spin...
Vulnerable households and variable incomes (2006)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK usingWaves 1 - 12 of the British...
Vulnerable households and variable incomes (2006)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK usingWaves 1 - 12 of the British...
Fracture Study of a Polyacetal Resin (2006)
Bandyopadhyay, S., Roseblade, J. R., Muscat, R.
Fracture experiments have been carried out with unnotched and notched tensile specimens of polyacetal resin at room temperature at various rates of extension. An increase of approximately 13% in...
Magnetic reconnection and plasma dynamics in two-beam laser-solid interactions (2006)
Nilson, PM, Willingale, L, Kaluza, MC, Kamperidis, C, Minardi, S, Wei, M, ...
We present measurements of a magnetic reconnection in a plasma created by two laser beams (1 ns pulse duration, 1x10(15) W cm(-2)) focused in close proximity on a planar solid target. Simultaneous...
Laser-driven shock waves for the study of extreme matter states (2006)
Benuzzi-Mounaix, A, Koenig, M, Ravasio, A, Vinci, T, Ozaki, N, Le Gloahec, MR, ...
During the last ten years, the ability of high power lasers to generate high energy density shocks has made them a reliable tool to study extreme states of matter. These states of matter are relevant...
Tungsten fibre reinforced Zr-based bulk metallic glass composites (2006)
Wang, Hao, Zhang, H. F., Hu, Z. Q., Bandyopadhyay, S., Zeng, Q., Berndt, C., ...
A Zr-based bulk metallic glass (BMG) alloy with the composition (Zr55Al10Ni5Cu30)98.5Si1.5 was used as the base material to form BMG composites. Tungsten fiber reinforced BMG composites were...
In-situ Si/Al composite produced by semisolid metal processing (2006)
Wang, Hao, Bandyopadhyay, S., Zeng, Q., Berndt, C., Rizkalla, S., Gowripalan, N., ...
[Abstract]: Hypereutectic aluminium-silicon alloy can be considered as an in-situ composite with primary silicon acting as the reinforcing phase. In this paper, we use semisolid metal processing...
Tungsten fibre reinforced Zr-based bulk metallic glass composites (2006)
Wang, Hao, Zhang, H. F., Hu, Z. Q., Bandyopadhyay, S., Zeng, Q., Berndt, C., ...
A Zr-based bulk metallic glass (BMG) alloy with the composition (Zr55Al10Ni5Cu30)98.5Si1.5 was used as the base material to form BMG composites. Tungsten fiber reinforced BMG composites were...
In-situ Si/Al composite produced by semisolid metal processing (2006)
Wang, Hao, Bandyopadhyay, S., Zeng, Q., Berndt, C., Rizkalla, S., Gowripalan, N., ...
[Abstract]: Hypereutectic aluminium-silicon alloy can be considered as an in-situ composite with primary silicon acting as the reinforcing phase. In this paper, we use semisolid metal processing...
Hardeo, P., Karunasena, W., Bandyopadhyay, S., Zeng, Q., Rizkalla, S., ...
An investigation of the lateral load capacity of model concrete filled FRP tubular composite piles was carried out. Model composite piles which formed a basis for the development of a three...
Hardeo, P., Karunasena, W., Bandyopadhyay, S., Zeng, Q., Rizkalla, S., ...
An investigation of the lateral load capacity of model concrete filled FRP tubular composite piles was carried out. Model composite piles which formed a basis for the development of a three...
Pramanik, S., Stefanita, C-G., Bandyopadhyay, S., Garre, K., Harth, N., Cahay, M.
We report spin valve behavior in an organic nanowire consisting of three layers - cobalt, Alq3 and nickel - all nominally 50 nm in diameter. Based on the data, we conclude that the dominant spin...
We show that the dominant absorption peak due to inter-subband transition in a gated quantum wire, with two occupied subbands, will split into a main peak and two satellite peaks if both Rashba and...
Bell-correlated activable bound entanglement in multiqubit systems (2005)
Bandyopadhyay, S, Chattopadhyay, I, Roychowdhury, Vwani, Sarkar, D
We show that the Hilbert space of even number (>= 4) of qubits can always be decomposed as a direct sum of four orthogonal subspaces such that the normalized projectors onto the subspaces are...
CORBA-based analysis of multi agent behavior (2005)
Bhattacharya, S, Banerjee, A, Bandyopadhyay, S
An agent is a computer software that is capable of taking independent action on behalf of its user or owner. It is an entity with goals, actions and domain knowledge, situated in an environment....
Vulnerable households and variable incomes (2005)
Bandyopadhyay, S, Cowell, Frank
In this paper we examine the concept of "vulnerability" within the context of income mobility of the poor. We test for the dynamics of vulnerable households in the UK usingWaves 1 - 12 of the British...
Plasma diagnostic developments at the CLF (2005)
Notley, MM, Neely, D, Clarke, RJ, Foster, PS, Heathcote, R, Bandyopadhyay, S
Nanosecond contrast measurements of the Vulcan Petawatt facility (2005)
Musgrave, IO, Hernandez-Gomez, C, Canny, D, Heathcote, R, Clarke, RJ, Collier, JL, ...
Synthesis and characterization of molecularly designed nanomaterials (2005)
Oaten, Matthew, Choudhury, Namita, Dutta, Naba K, Knott, Robert, Bandyopadhyay, S
Synthesis and characterization of molecularly designed nanomaterials (2005)
Oaten, Matthew, Choudhury, Namita, Dutta, Naba K, Knott, Robert, Bandyopadhyay, S
When it comes to spintronics, there may be some room in the middle (2004)
Spintronic devices that utilize the spin degree of freedom of a charge carrier to store, process or transmit information, may be better performers than their traditional electronic counterparts if...
Entanglement Observables and Witnesses for Interacting Quantum Spin Systems (2004)
Bandyopadhyay, S., Sarandy, M. S., Lidar, D. A.
We discuss the detection of entanglement in interacting quantum spin systems. First, thermodynamic Hamiltonian-based witnesses are computed for a general class of one-dimensional spin-1/2 models....
Are spin junction transistors suitable for signal processing? (2004)
A number of spintronic junction transistors, that exploit the spin degree of freedom of an electron in addition to the charge degree of freedom, have been proposed to provide simultaneous...
Proposal for a spintronic femto-Tesla magnetic field sensor (2004)
We propose a spintronic magnetic field sensor, fashioned out of quantum wires, which may be capable of detecting very weak magnetic fields with a sensitivity of ~ 1 femto-Tesla per root Hertz at a...
A spin field effect transistor for low leakage current (2004)
In a spin field effect transistor, a magnetic field is inevitably present in the channel because of the ferromagnetic source and drain contacts. This field causes random unwanted spin precession when...
Computing with spins: From classical to quantum computing (2004)
This article traces a brief history of the use of single electron spins to compute. In classical computing schemes, a binary bit is represented by the spin polarization of a single electron confined...
An alternate spintronic analog of the electro-optic modulator (2004)
There is significant current interest in spintronic devices fashioned after a spin analog of the electro-optic modulator proposed by Datta and Das [Appl. Phys. Lett., \underline{56}, 665 (1990)]. In...
Can spintronic field effect transistors compete with their electronic counterparts? (2004)
Current interest in spintronics is largely motivated by a belief that spin based devices (e.g. spin field effect transistors) will be faster and consume less power than their electronic counterparts....
Issues pertaining to D'yakonov-Perel' spin relaxation in quantum wire channels (2004)
Pramanik, S., Bandyopadhyay, S., Cahay, M.
We elucidate the origin and nature of the D'yakonov-Perel' spin relaxation in a quantum wire structure, showing (analytically) that there are three necessary conditions for it to exist: (i) transport...
Quantum Information Science from the Perspective of a Device and Materials Engineer (2004)
Quantum information science is presented in a fashion that may be useful to a device or materials engineer. Spintronic implementations are emphasized.
Spin fluctuations and spin noise (2003)
Pramanik, S., Bandyopadhyay, S.
We have theoretically studied the temporal fluctuations and the resulting kinetic noise in the average spin polarization of an electron ensemble drifting in a quantum wire under a high electric...
Decay of spin polarized hot carrier current in a quasi one-dimensional spin valve structure (2003)
Pramanik, S., Bandyopadhyay, S., Cahay, M.
We study the spatial decay of spin polarized hot carrier current in a spin-valve structure consisting of a semiconductor quantum wire flanked by half-metallic ferromagnetic contacts. The current...
Bandyopadhyay, S., Pramanik, S., Cahay, M.
We derive the eigenenergies and eigenstates of electrons in a quantum wire subjected to an external magnetic field. These are calculated in the presence of spin orbit interactions arising from the...
Effect of Disorder on the Conductance of Spin Field Effect Transistors (SPINFET) (2003)
We show that the conductance of Spin Field Effect Transistors (SPINFET) [Datta and Das, Appl. Phys. Lett., Vol. 56, 665 (1990)] is affected by a single (non-magnetic) impurity in the transistor's...
Spin transport in nanowires (2003)
Pramanik, S., Bandyopadhyay, S., Cahay, M.
We study high-field spin transport of electrons in a quasi one-dimensional channel of a $GaAs$ gate controlled spin interferometer (SPINFET) using a semiclassical formalism (spin density matrix...
A transfer matrix technique is used to model phase coherent spin transport in the weakly disordered quasi one-dimensional channel of a gate-controlled electron spin interferometer [Datta and Das,...
We use a mean field approach to study the conductance modulation of gate controlled semiconductor spin interferometers based on the Rashba spin-orbit coupling effect. The conductance modulation is...
Efficient Object Extraction Using Fuzzy Cardinality Based Thresholding and Hopfield Network (2002)
S. Bhattacharyya, U. Maulik, S. Bandyopadhyay
An efficient technique that integrates the advantages of both fuzzy theory and Hopfield type neural network for object extraction from noisy background is proposed in this article. In the initial...
Single spin measurement in the solid state: a reader for a spin qubit (2002)
We describe a paradigm for measuring a single electron spin in a solid. This is a fundamental problem in condensed matter physics. The technique can be used to read a spin qubit relatively...
Self-assembled networks with neural computing attributes (2002)
Bandyopadhyay, S., Menon, L., Kouklin, N., Williams, P. F., Ianno, Natale J.
Two-dimensional arrays of vertical quantum wire Esaki tunnel diodes, laterally connected to their nearest neighbors by resistive/capacitive connections, constitute a powerful and versatile...
Incorporating Chromosome Differentiation in Genetic Algorithms (2002)
A genetic algorithmic methodology, termed a genetic algorithm with chromosome differentiation (GACD), is described which incorporates chromosome differentiation for evolutionary process. Chromosomes...
Structure and magnetic properties of ferromagnetic nanowires in self-assembled arrays (2002)
Zeng, H., Skomski, Ralph, Menon, L., Liu, Yi, Bandyopadhyay, S., Sellmyer, David J.
Static and dynamic aspects of the magnetization reversal in nanowire arrays are investigated. The arrays have been produced by electrodeposition of ferromagnetic metals (Fe, Co, and Ni) into porous...
Effect of reaction parameters on γ-AlON formation from Al2O3 and AlN (2002)
Bandyopadhyay,S., Rixecker,G., Aldinger,F., Pal,S., Mukherjee,K., Maiti,H. S.
Zeng, H., Michalski, S., Kirby, Roger D., Sellmyer, David J., Menon, L., Bandyopadhyay, S.
Ni nanowire arrays were produced by electrodeposition of Ni into self-assembled porous anodic alumina templates. With different anodization voltages, the wires show different surface morphologies....
FT-IR/PA Study of Quinoline Adsorbed on Calcined and Sulfided Mo/Gamma-Al2O3. (2002)
Bandyopadhyay,S., Massoth,F. E., Pons,S., Eyring,E. M.
Photoacoustic infrared spectra of quinoline adsorbed on gamma-alumina and on oxide and sulfided forms of Molybdenum/gamma-alumina are reported. In agreement with prior studies with pyridine, both...