Research Output 1992 2019

Filter
Article
2008

Superconducting transition temperature of co-doped Y0.95Pr 0.05Ba2(Cu1-xMnx)3O 7-δ superconductors for x ≤0.02

Gahtori, B., Lal, R., Agarwal, S. K., Das, A., Chakraborty, T. & Rao, A., 01-08-2008, In : Indian Journal of Pure and Applied Physics. 46, 8, p. 575-579 5 p.

Research output: Contribution to journalArticle

transition temperature
magnetic permeability
electrical resistivity
grain size
degradation
2007
20 Citations (Scopus)

Dielectric anomaly in Li-doped zinc oxide thin films grown by sol-gel route

Dhananjay, Singh, S., Nagaraju, J. & Krupanidhi, S. B., 01-08-2007, In : Applied Physics A: Materials Science and Processing. 88, 2, p. 421-424 4 p.

Research output: Contribution to journalArticle

Zinc Oxide
Ferroelectricity
Zinc oxide
Oxide films
Sol-gels
19 Citations (Scopus)

Effects of Fe substitution on the transport properties of the superconductor MgB2

Gahtori, B., Lal, R., Agarwal, S. K., Kuo, Y. K., Sivakumar, K. M., Hsu, J. K., Lin, J. Y., Rao, A., Chen, S. K. & MacManus-Driscoll, J. L., 16-05-2007, In : Physical Review B - Condensed Matter and Materials Physics. 75, 18, 184513.

Research output: Contribution to journalArticle

Transport properties
Superconducting materials
Thermal conductivity
Substitution reactions
thermal conductivity
31 Citations (Scopus)

Investigations on magnetron sputtered ZnO thin films and Au/ZnO Schottky diodes

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 01-04-2007, In : Physica B: Condensed Matter. 391, 2, p. 344-349 6 p.

Research output: Contribution to journalArticle

Schottky diodes
Diodes
Thin films
space charge
thin films
15 Citations (Scopus)

Investigations on zinc oxide thin films grown on Si (1 0 0) by thermal oxidation

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 25-02-2007, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 137, 1-3, p. 126-130 5 p.

Research output: Contribution to journalArticle

Zinc Oxide
Zinc oxide
zinc oxides
Oxide films
Heterojunctions
52 Citations (Scopus)

Low threshold voltage ZnO thin film transistor with a Zn 0.7Mg0.3O gate dielectric for transparent electronics

Dhananjay & Krupanidhi, S. B., 03-08-2007, In : Journal of Applied Physics. 101, 12, 123717.

Research output: Contribution to journalArticle

threshold voltage
low voltage
transistors
thin films
electronics
40 Citations (Scopus)

Off-centered polarization and ferroelectric phase transition in Li-doped ZnO thin films grown by pulsed-laser ablation

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 12-06-2007, In : Journal of Applied Physics. 101, 10, 104104.

Research output: Contribution to journalArticle

laser ablation
pulsed lasers
polarization
thin films
capacitance-voltage characteristics
39 Citations (Scopus)
pathology
Pathology
principal components analysis
Principal component analysis
Fluorescence
2 Citations (Scopus)

Radioactivity and radiation hazard evaluation in the environment of coastal Kerala, India

Shetty, P. K. & Narayana, Y., 01-11-2007, In : International Journal of Low Radiation. 4, 3, p. 189-199 11 p.

Research output: Contribution to journalArticle

Radioactivity
India
Radiation
Radioisotopes
Soil
42 Citations (Scopus)

Realization of In2 O3 thin film transistors through reactive evaporation process

Dhananjay & Chu, C. W., 05-10-2007, In : Applied Physics Letters. 91, 13, 132111.

Research output: Contribution to journalArticle

transistors
evaporation
thin films
x ray diffraction
flat panel displays
19 Citations (Scopus)

Structural and transport properties of Nd doped (Bi,Pb)-2212

Biju, A., Syamaprasad, U., Rao, A., Xu, J. G., Sivakumar, K. M. & Kuo, Y. K., 01-11-2007, In : Physica C: Superconductivity and its Applications. 466, 1-2, p. 69-75 7 p.

Research output: Contribution to journalArticle

Transport properties
Structural properties
Substitution reactions
transport properties
substitutes
2 Citations (Scopus)

The influence of Mn doping on the thermal expansion of the high T C superconductor YBa2(Cu1-xMnx) 3Oy

Rao, A., Radheshyam, S., Kumar, R., Gupta, S., Meingast, C., Gahtori, B., Agarwal, S. K., Sivakumar, K. M. & Kuo, Y. K., 07-02-2007, In : Journal of Physics Condensed Matter. 19, 5, 056208.

Research output: Contribution to journalArticle

Superconducting materials
Thermal expansion
thermal expansion
Doping (additives)
extensometers
7 Citations (Scopus)

Thermal transport in (Y,Gd)Ba2(Cu1-xMn x)3O7-δ for x≤0.02

Gahtori, B., Lal, R., Agarwal, S. K., Ahsan, M. A. H., Rao, A., Lin, Y. F., Sivakumar, K. M. & Kuo, Y. K., 27-06-2007, In : Journal of Physics Condensed Matter. 19, 25, 256212.

Research output: Contribution to journalArticle

Thermoelectric power
Thermal conductivity
thermal conductivity
Lattice theory
Electrons
2006
20 Citations (Scopus)

Behavior of 210Po and 210Pb in high background areas of coastal Kerala on the south west coast of India

Narayana, Y., Shetty, P. K. & Siddappa, K., 01-03-2006, In : Applied Radiation and Isotopes. 64, 3, p. 396-401 6 p.

Research output: Contribution to journalArticle

India
coasts
beaches
sands
radioactive isotopes
8 Citations (Scopus)

Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ superconductors for x ≤ 0.02

Gahtori, B., Lal, R., Ahsan, M. A. H., Shyam, R., Rao, A. & Agarwal, S. K., 15-11-2006, In : Physica C: Superconductivity and its Applications. 449, 2, p. 128-132 5 p.

Research output: Contribution to journalArticle

Superconducting materials
Volume fraction
alternating current
Scattering
magnetic permeability
32 Citations (Scopus)

dc and ac transport properties of Mn-doped ZnO thin films grown by pulsed laser ablation

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 25-08-2006, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 133, 1-3, p. 70-76 7 p.

Research output: Contribution to journalArticle

Laser ablation
Pulsed lasers
Transport properties
laser ablation
pulsed lasers
29 Citations (Scopus)

Dielectric properties of c-axis oriented Zn1-xMgxO thin films grown by multimagnetron sputtering

Dhananjay & Krupanidhi, S. B., 31-08-2006, In : Applied Physics Letters. 89, 8, 082905.

Research output: Contribution to journalArticle

dielectric properties
sputtering
polarization
thin films
hysteresis
45 Citations (Scopus)

Effect of Li substitution on dielectric and ferroelectric properties of ZnO thin films grown by pulsed-laser ablation

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 01-02-2006, In : Journal of Applied Physics. 99, 3, 034105.

Research output: Contribution to journalArticle

laser ablation
dielectric properties
pulsed lasers
substitutes
permittivity
10 Citations (Scopus)

Effect of Mn doping on the specific heat of the high TC superconductor REBa2Cu3Oy (RE = Y,Gd)

Rao, A., Radheshyam, S., Das, A., Gahtori, B., Agarwal, S. K., Lin, Y. F., Sivakumar, K. M. & Kuo, Y. K., 22-03-2006, In : Journal of Physics Condensed Matter. 18, 11, p. 2955-2962 8 p.

Research output: Contribution to journalArticle

Superconducting materials
Superconducting transition temperature
Specific heat
transition temperature
Doping (additives)

Effect of Mn doping on the specific heat of the high Tc superconductor Y1-xPrxBa2Cu3Oy

Rao, A., Shyam, R., Das, A., Rawat, R., Gahtori, B., Sen, V., Panwar, N. & Agarwal, S. K., 01-06-2006, In : Journal of Physics: Conference Series. 43, 1, p. 531-534 4 p., 131.

Research output: Contribution to journalArticle

specific heat
electrical resistivity
heat measurement
heat
pulses
12 Citations (Scopus)

Growth and transport properties of CuInSe2/ZnO heterostructure solar cell

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 15-02-2006, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 127, 1, p. 12-16 5 p.

Research output: Contribution to journalArticle

Transport properties
Heterojunctions
Solar cells
solar cells
transport properties
26 Citations (Scopus)

Growth of ferroelectric Li-doped ZnO thin films for metal-ferroelectric-semiconductor FET

Dhananjay, Nagaraju, J., Choudhury, P. R. & Krupanidhi, S. B., 07-07-2006, In : Journal of Physics D: Applied Physics. 39, 13, p. 2664-2669 6 p., 005.

Research output: Contribution to journalArticle

Field effect transistors
Ferroelectric materials
field effect transistors
Metals
Semiconductor materials
37 Citations (Scopus)

Principal component analysis and artificial neural network analysis of oral tissue fluorescence spectra: Classification of normal premalignant and malignant pathological conditions

Nayak, G. S., Kamath, S., Pai, K. M., Sarkar, A., Ray, S., Kurien, J., D'Almeida, L., Krishnanand, B. R., Santhosh, C., Kartha, V. B. & Mahato, K. K., 05-06-2006, In : Biopolymers. 82, 2, p. 152-166 15 p.

Research output: Contribution to journalArticle

Electric network analysis
Principal Component Analysis
Principal component analysis
Fluorescence
Tissue
7 Citations (Scopus)

Structure and properties of vacuum deposited cadmium telluride thin films

Shreekanthan, K. N., Bangera, K. V., Shivakumar, G. K. & Mahesha, M. G., 12-12-2006, In : Indian Journal of Pure and Applied Physics. 44, 9, p. 705-708 4 p.

Research output: Contribution to journalArticle

cadmium tellurides
vacuum
thin films
deposits
electrical properties
4 Citations (Scopus)

Temperature dependent transport properties of CuInSe2-ZnO heterostructure solar Cell

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 01-08-2006, In : Journal of Physics and Chemistry of Solids. 67, 8, p. 1636-1642 7 p.

Research output: Contribution to journalArticle

Transport properties
Heterojunctions
Solar cells
solar cells
transport properties
20 Citations (Scopus)

Vertical profiles and enrichment pattern of natural radionuclides in monazite areas of coastal Kerala

Shetty, P. K., Narayana, Y. & Siddappa, K., 01-01-2006, In : Journal of Environmental Radioactivity. 86, 1, p. 132-142 11 p.

Research output: Contribution to journalArticle

Monazite
monazite
Radioisotopes
vertical profile
radionuclide
2005
6 Citations (Scopus)

Enrichment of natural radionuclides in monazite areas of coastal Kerala

Narayana, Y., Shetty, P. K. & Siddappa, K., 01-02-2005, In : International Congress Series. 1276, p. 333-334 2 p.

Research output: Contribution to journalArticle

Particle Size
Radioisotopes
Water
monazite
48 Citations (Scopus)

Optical properties of Dy3+ doped in oxyfluoroborate glass

Mahato, K. K., Rai, A. & Rai, S. B., 2005, In : Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 61, 3, p. 431-436 6 p.

Research output: Contribution to journalArticle

Energy transfer
Optical properties
Fluorescence
energy transfer
optical properties
2004
9 Citations (Scopus)

Influence of Zn doping on the thermal expansion of the high Tc superconductor Y1Ba2Cu3Oy

Rao, A., 03-03-2004, In : Journal of Physics Condensed Matter. 16, 8, p. 1439-1445 7 p.

Research output: Contribution to journalArticle

Superconducting materials
Thermal expansion
thermal expansion
Doping (additives)
extensometers
3 Citations (Scopus)

Photoconductivity in vacuum deposited cadmium selenide thin films

Rajendra, B. V., Kasturi, V. B. & Shivakumar, G. K., 01-06-2004, In : Indian Journal of Engineering and Materials Sciences. 11, 3, p. 217-220 4 p.

Research output: Contribution to journalArticle

Photoconductivity
Cadmium
Vacuum
Thin films
Thermal evaporation
2003
41 Citations (Scopus)

Growth and characterization of semiconducting cadmium selenide thin films

Shreekanthan, K. N., Rajendra, B. V., Kasturi, V. B. & Shivakumar, G. K., 01-01-2003, In : Crystal Research and Technology. 38, 1, p. 30-33 4 p.

Research output: Contribution to journalArticle

cadmium selenides
Cadmium
Thin films
thin films
Semiconducting films
25 Citations (Scopus)

Structural and optical properties of CuIn1-xAlxSe2 thin films prepared by four-source elemental evaporation

Dhananjay, Nagaraju, J. & Krupanidhi, S. B., 01-07-2003, In : Solid State Communications. 127, 3, p. 243-246 4 p.

Research output: Contribution to journalArticle

Structural properties
Evaporation
Optical properties
evaporation
optical properties
2001
8 Citations (Scopus)
Particle interactions
Silver
Polymers
Metals
Substrates
1999
3 Citations (Scopus)

A simple strain cell for the measurement of the gauge factor of a thin film

Pattabi, M. & Rao, K. M., 01-01-1999, In : Review of Scientific Instruments. 70, 4, p. 2074-2075 2 p.

Research output: Contribution to journalArticle

Gages
Thin films
thin films
cells
Instrument dials
21 Citations (Scopus)

Optical studies of Pr3+ doped oxyfluoroborate glass

Mahato, K. K., Rai, D. K. & Rai, S. B., 1999, In : Physica Status Solidi (A) Applied Research. 174, 1, p. 277-289 13 p.

Research output: Contribution to journalArticle

Fluorescence
Glass
fluorescence
Energy transfer
glass
18 Citations (Scopus)

Preparation and characterization of silver particulate structure deposited on softened poly(4-vinylpyridine) substrates

Mohan Rao, K., Pattabi, M., Sainkar, S. R., Lobo, A., Kulkarni, S. K., Uchil, J. & Murali Sastry, M. S., 21-09-1999, In : Journal of Physics D: Applied Physics. 32, 18, p. 2327-2336 10 p.

Research output: Contribution to journalArticle

Silver
particulates
silver
preparation
Substrates
27 Citations (Scopus)

Structural studies on silver cluster films deposited on softened PVP substrates

Pattabi, M., Mohan Rao, K., Sainkar, S. R. & Sastry, M., 11-01-1999, In : Thin Solid Films. 338, 1-2, p. 40-45 6 p.

Research output: Contribution to journalArticle

Silver
silver
Polymers
Substrates
Metals
1998
16 Citations (Scopus)

Aging studies on discontinuous silver films in ultrahigh vacuum

Pattabi, M., Suresh, N., Chaudhari, S. M., Banerjee, A., Phase, D. M., Gupta, A. & Mohan Rao, K., 08-06-1998, In : Thin Solid Films. 322, 1-2, p. 340-343 4 p.

Research output: Contribution to journalArticle

Ultrahigh vacuum
Silver
ultrahigh vacuum
Aging of materials
silver
13 Citations (Scopus)

Electrical behaviour of discontinuous silver films deposited on softened polyvinylpyridine substrates

Pattabi, M. & Rao, K. M., 07-01-1998, In : Journal of Physics D: Applied Physics. 31, 1, p. 19-23 5 p.

Research output: Contribution to journalArticle

Silver
silver
Substrates
Temperature
temperature
2 Citations (Scopus)
Silver
silver
Substrates
atmospheres
Gages
1997
10 Citations (Scopus)

Preparation and characterisation of silver particulate films on softened polystyrene substrates

Rao, K. M., Pattabi, M., Mayya, K. S., Sainkar, S. R. & Sastry, M., 21-11-1997, In : Thin Solid Films. 310, 1-2, p. 97-101 5 p.

Research output: Contribution to journalArticle

Polystyrenes
Silver
particulates
polystyrene
Deposition rates
8 Citations (Scopus)

The effect of substrate vibration on mobility coalescence in silver island films

Pattabi, M., Uchil, J. & Mohan Rao, K., 01-01-1997, In : Thin Solid Films. 305, 1-2, p. 196-200 5 p.

Research output: Contribution to journalArticle

Coalescence
Silver
coalescing
silver
Aging of materials
1996
7 Citations (Scopus)

Effect of Ni doping on the thermal expansion of the high-Tc superconductor YBa2Cu3Oy

Rao, A., 29-01-1996, In : Journal of Physics Condensed Matter. 8, 5, p. 527-533 7 p.

Research output: Contribution to journalArticle

Superconducting materials
Thermal expansion
thermal expansion
Doping (additives)
extensometers
18 Citations (Scopus)

The effect of magnetic field on the ageing of island silver films for successive depositions

Uchil, J., Mohan Rao, K. & Pattabi, M., 14-12-1996, In : Journal of Physics D: Applied Physics. 29, 12, p. 2992-2996 5 p.

Research output: Contribution to journalArticle

Silver
Aging of materials
silver
Magnetic fields
magnetic fields
1995
6 Citations (Scopus)

Effect of Co substitution on the thermal expansion of the high-Tc superconductor Y1Ba2Cu3Oy

Rao, A., Prakash, O., Das, S. N. & Dheer, P. N., 01-01-1995, In : Solid State Communications. 94, 12, p. 991-995 5 p.

Research output: Contribution to journalArticle

Superconducting materials
Thermal expansion
thermal expansion
Substitution reactions
substitutes
1994
5 Citations (Scopus)

Effect of Fe substitution on the thermal expansion of the high T c superconductor Y1Ba2Cu3O y

Rao, A., Prakash, O., Das, S. N. & Dheer, P. N., 01-07-1994, In : Pramana. 43, 1, p. 11-19 9 p.

Research output: Contribution to journalArticle

thermal expansion
substitutes
extensometers
coefficients
capacitance
1993
7 Citations (Scopus)

Thermal expansion of orthorhombic and tetragonal phases of the high T c superconductors RE1Ba2Cu3O y (RE=Y, Gd, Dy)

Prakash, O. M., Rao, A., Prakash, O. & Dheer, P. N., 01-11-1993, In : Pramana. 41, 5, p. 421-428 8 p.

Research output: Contribution to journalArticle

thermal expansion
extensometers
capacitance
transition temperature
preparation
1992
7 Citations (Scopus)

An apparatus for the measurement of thermal expansion of solids at low temperatures

Prakash, O., Rao, A. & Dheer, P. N., 01-12-1992, In : Pramana. 39, 6, p. 655-660 6 p.

Research output: Contribution to journalArticle

thermal expansion
extensometers
mounting
capacitance
transition temperature