ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Browse by Author

Up a level
Export as [feed] Atom [feed] RSS 1.0 [feed] RSS 2.0
Group by: Item Type | No Grouping
Number of items: 95.

Conference Proceedings

Suresh, KS and Kumar, N and Mishra, RS and Suwas, S (2013) Evolution of microstructure and texture in friction stir processed Al-Mg-Mn alloy. In: 5th International Conference on Recrystallization and Grain Growth (ReX&GG V), MAY 05-10, 2013, Sydney, AUSTRALIA, pp. 247-250.

Conference Paper

Sood, AK and Ghosh, Shankar and Kumar, N (2005) Flow driven electronic transport in carbon nan otubes. In: International Conference on Nanoscience and Technology, DEC 17-20, 2003, Culcutta, pp. 839-848.

Kumar, N (1994) One-parameter scaling: some open questions. In: Ordering Disorder: Prospect and Retrospect in Condensed Matter Physics. Indo-U.S. Workshop, 29 Dec. 1992-5 Jan. 1993, Hyderabad, India, pp. 3-11.

Kumar, N and Lee, PA and Shapiro, B (1990) Conduction in strongly anisotropic metals. In: Third Bar-Ilan Conference on Frontiers in Condensed Matter Physics, 8-11 Jan. 1990, Ramat-Gan, Israel, pp. 447-455.

Amritkar, RE and Kumar, N and Srinivasan, R (1983) Non-observability of CESR in superconductors. In: Nuclear Physics and Solid State Physics Symposium, pp. 11-14.

Journal Article

Negi, DS and Roy, A and Loukya, B and Dileep, K and Shetty, S and Kumar, N and Kumar, Anil PS and Datta, R (2014) Epitaxial Co metal thin film grown by pulsed laser deposition using oxide target. In: JOURNAL OF CRYSTAL GROWTH, 394 . pp. 112-115.

Ranjith, V and Kumar, N (2013) Light transmission through and its complete stoppage in an ultra slow wave optical medium. In: CURRENT SCIENCE, 105 (7). pp. 962-964.

Kumar, N and Kumar, K Vijay (2009) Classical Langevin dynamics of a charged particle moving on a sphere and diamagnetism: A surprise. In: Europhysics Letters, 86 (1). 17001-p1.

Venkataraman, V and Kumar, N and Natarajan, Vasant (2007) Venkataraman, Natarajan, and Kumar Reply. In: Physical Review Letters, 98 (18). pp. 189803-1.

Manzoor, K and Aditya, V and Vadera, SR and Kumar, N and Kutty, TRN (2007) A Single-Source Solid-Precursor Method for Making Eco-Friendly Doped Semiconductor Nanoparticles Emitting Multi-Color Luminescence. In: Journal of Nanoscience and Nanotechnology, 7 (2). pp. 463-473.

Manzoor, K and Aditya, V and Vadera, SR and Kumar, N and Kutty, TRN (2006) Self-assembly of doped semiconductor nanocrystals leading to the formation of highly luminescent nanorods. In: Applied Surface Science, 252 (11). pp. 3968-3971.

Mujumdar, Sushil and Ramachandran, Hema and Kumar, N and Sood, AK (2006) Evanescent-wave-excited quasi-two-dimensional random lasing. In: Optics Letters, 31 (18). pp. 2722-2724.

Manzoor, K and Aditya, V and Vadera, SR and Kumar, N and Kutty, TRN (2005) Enhanced electroluminescence properties of doped ZnS nanorods formed by the self-assembly of colloidal nanocrystals. In: Solid State Communications, 135 (1-2). pp. 16-20.

Manzoor, K and Aditya, V and Vadera, SR and Kumar, N and Kutty, TRN (2005) Spontaneous organisation of ZnS nanoparticles into monocrystalline nanorods with highly enhanced dopant-related emission. In: Journal of Physics and Chemistry of Solids, 66 (7). pp. 1164-1170.

Ghosh, S and Sood, AK and Ramaswamy, S and Kumar, N (2004) Flow-induced voltage and current generation in carbon nanotubes. In: Physical Review B, 70 (20). pp. 205423-1.

Manzoor, K and Vadera, SR and Kumar, N and Kutty, TRN (2004) Energy transfer from organic surface adsorbate-polyvinyl pyrrolidone molecules to luminescent centers in ZnS nanocrystals. In: Solid State Communications, 29 (7). pp. 469-473.

Manzoor, K and Vadera, SR and Kumar, N and Kutty, TRN (2004) Multicolor electroluminescent devices using doped ZnS nanocrystals. In: Applied Physics Letters, 84 (2). pp. 284-286.

Manzoor, K and Vadera, SR and Kumar, N and Kutty, TRN (2003) Synthesis and photoluminescent properties of ZnS nanocrystals doped with copper and halogen. In: Materials Chemistry and Physics, 82 (3). pp. 718-725.

Sharma, DR and Mathur, Rashi and Vadera, SR and Kumar, N and Kutty, TRN (2003) Synthesis of nanocomposites of Ni-Zn ferrite in aniline formaldehyde copolymer and studies on their pyrolysis products. In: Journal of Alloys and Compounds, 358 (1-2). pp. 193-204.

Ghosh, Shankar and Sood, AK and Kumar, N (2003) Carbon Nanotube Flow Sensors. In: Science, 299 (5609). pp. 1042-1044.

Ramachandra, SG and Ramesh, V and Krishnamurthy, HN and Kumar, N and Sundaram, K and Hardy, MP and Rao, Jagannadha A (2002) Effect of chronic administration of 7\alpha-methyl-19-nortestosterone on serum testosterone, number of spermatozoa and fertility in adult male bonnet monkeys (Macaca radiata). In: Reproduction, 124 (2). pp. 301-309.

Ahsan, MAH and Kumar, N (2001) Rotating Bose gas with hard-core repulsion in a quasi-two-dimensional harmonic trap: Vortices in Bose-Einstein condensates. In: Physical Review A, 64 (1). 64, 013608-64, 013608.

Gopal, Venkatesh and Ramakrishna, Anantha S and Sood, AK and Kumar, N (2001) Photon transport in thin disordered slabs. In: Pramana Journal of Physics, 56 (6). pp. 767-778.

Bekele, Mulugeta and Ananthakrishna, G and Kumar, N (1999) Mean first passage time approach to the problem of optimal barrier subdivision for Kramer's escape rate. In: Physica A: Statistical Mechanics and its Applications, 270 (1-2). pp. 149-158.

Bekele, Mulugeta and Rajesh, S and Ananthakrishna, G and Kumar, N (1999) Effect of Landauer's blow torch on the equilibration rate in a bistable potential. In: Physical Review E, 59 (1). pp. 143-149.

Pradhan, P and Kumar, N (1998) Geometric phase for a dimerized disordered continuum: Topological shot noise. In: Europhysics Letter, 44 (01). pp. 131-136.

Arulraj, Anthony and Santhosh, PN and Gopalan, Srinivasa R and Guha, Ayan and Raychaudhuri, AK and Kumar, N and Rao, CNR (1998) Charge ordering in the rare-earth manganates: the origin of the extraordinary sensitivity to the average radius of the A-site cations, $\langle r_A\rangle$. In: Journal of Physics: Condensed Matter, 10 (38). pp. 8497-8504.

Pradhan, Prabhakar and Kumar, N (1998) Reply to "Comment on 'Suppression of conductance fluctuations in short one-dimensional disordered conductors’ ". In: Physical Review B, 57 (7). p. 4180.

Bekele, Mulugeta and Ananthakrishna, G and Kumar, N (1996) Optimal barrier subdivision for Kramers' escape rate. In: Pramana-Journal of Physics, 46 (06). pp. 403-410.

Sanyal, S and Sood, AK and Ramkumar, S and Ramaswamy, S and Kumar, N (1994) Novel Polarization Dependence in Diffusing-Wave Spectroscopy of Crystallizing Colloidal Suspensions. In: Physical Review Letters, 72 (18). pp. 2963-2966.

Srinivasu, VV and Bhat, SV and Kumar, N (1994) Anomalous d.c. field dependence of non-resonant r.f. absorption at high r.f. fields in $YBa_2Cu_3O_{7_\delta}$ powders. In: Solid State Communications, 89 (4). pp. 375-378.

Bhat, SV and Rastogi, A and Kumar, N and Nagarajan, R and Rao, CNR (1994) Paramagnetic Meissner effect in $YBa_2Cu_3O_{7-\delta}$ A non-resonant microwave absorption study. In: Physica C, 219 (1-2). pp. 87-92.

Hegde, MS and Thomas, Boben and Vasanthacharya, NY and Bhat, SV and Srinivasu, VV and Kumar, N (1993) Critical-current variation with Pr content in {Y_{1-x}Pr_xBa_2Cu_3O_7} epitaxial films. In: Physical Review B: Condensed Matter and Materials Physics, 48 (9). pp. 6465-6459.

Pradhan, Prabhakar and Kumar, N (1993) Suppression of conductance fluctuations in short one-dimensional disordered conductors. In: Physical Review B, 48 (8). pp. 5661-5663.

Kumar, N and Jayannavar, AM (1992) Temperature dependence of the c-axis resistivity of high-$T_c$ layered oxides. In: Physical Review B, 45 (9). pp. 5001-5004.

Sood, AK and Chandrabhas, N and Muthu, DVS and Jayaraman, A and Kumar, N and Krishnamurthy, HR and Pradeep, T and Rao, CNR (1992) Pressure-induced shift of the photoluminescence band in single crystals of buckminster fullerene C60 and its implications for superconductivity in doped samples. In: Solid State Communications, 18 (1). pp. 89-92.

Jayannavar, AM and Kumar, N (1991) Generalization of Bruggeman's unsymmetrical effective-medium theory to a three-component composite. In: Physical Review B, 44 (21). 12 014-12 015.

Kumar, N (1990) Localization of isolated holes in a Mott insulator and delocalization by pairing. In: Physical Review B, 42 (10). 6138 - 6141.

Kumar, N (1990) Magnetic pairing of charge carriers in doped Mott insulators. In: Journal of Solid State Chemistry, 88 (1). pp. 207-216.

Farrell, Mary Eileen and Bishop, Marilyn F and Kumar, N and Lawrence, WE (1990) Theory of the effects of destruction of localization by inelastic scattering in the resistivity of pure thin potassium wires. In: Physical Review B: Condensed Matter, 42 (6). pp. 3260-3270.

Deshpande, Varsha and Kumar, N (1990) A note on tunable transconductance of a branching molecular wire. In: Current Science, 59 (4). pp. 216-217.

Kumar, N and Raman, KS and Sastry, DH and Little, EA (1990) Investigation of superplasticity by the impression creep technique. In: Journal of Materials Science, 25 (1). pp. 753-755.

Rao, CNR and Ramakrishnan, TV and Kumar, N (1990) Systematics in the thermopower behaviour of several series of bismuth and thallium cuprate superconductors: An interpretation of the temperature variation and the sign of the thermopower. In: Physica C: Superconductivity, 165 (2). pp. 183-188.

Kumar, N (1989) Cold fusion: is there a solid state effect? In: Current Science, 58 (15). pp. 833-835.

Jayannavar, AM and Vijayagovindan, GV and Kumar, N (1989) Energy dispersive backscattering of electrons from surface resonances of a disordered medium and 1/f noise. In: Zeitschrift für Physik B: Condensed Matter, 75 (1). pp. 77-79.

Mello, PA and Pereyra, P and Kumar, N (1988) Macroscopic approach to multichannel disordered conductors. In: Annals of Physics, 181 (2). 290 -317.

Heinrichs, J and Jayannavar, AM and Kumar, N (1988) Constant conductance fluctuations in disordered metals. In: Solid State Communications, 67 (11). pp. 1103-1107.

Vijayagovindan, GV and Jayannavar, AM and Kumar, N (1987) Electric-field-dependent average resistance and the resistance fluctuation in one-dimensional disordered systems. In: Physical Review B, 35 (4). 2029 - 2032.

Kumar, N (1987) Low-temperature resistance fluctuation in disordered conductors. In: Pramana, 28 (5). pp. 503-508.

Kumar, N (1986) Quantum-Ohmic Resistance Fluctuation In Disordered Conductors - An Invariant Imbedding Approach. In: Pramana, 27 (1-2). pp. 33-42.

Kumar, N (1985) Information theory and one-dimensional disordered conductors. In: Journal of Non-Crystalline Solids, 75 (1-3). pp. 135-140.

Kumar, N (1985) Quantum first-passage problem. In: Pramana, 25 (4). pp. 363-367.

Armugam, S and Bhat, SV and Kumar, N and Ramanathan, KV and Srinivasan, R (1985) Observations of a plastic crystalline phase in solid MBBA. In: Proceedings of Indian Academy of Sciences: Chemical Sciences, 95 (1-2). pp. 39-47.

Kumar, N and Mello, PA (1985) Information theory and resistance fluctuations in one-dimensional disordered conductors. In: Physical Review B, 31 (5). pp. 3109-3111.

Arumugam, S and Bhat, SV and Kumar, N and Ramanathan, KV and Srinivasan, R (1985) NMR and x-ray investigations of a plastic crystalline phase in MBBA. In: Molecular crystals and liquid crystals, 126 (2-4). pp. 161-173.

Kumar, N and Jayannavar, AM (1985) Quantum diffusion in thin disordered wires. In: Physical Review B, 32 (5). 3345 -3347.

Kumar, N (1984) Diamagnetism - a surprise in theoretical physics. In: Current science, 52 (23). pp. 1108-1110.

Heinrichs, J and Kumar, N (1984) Non-diffusive classical transport in a medium with static randomness. In: Journal of physics C: Solid State Physics, 17 (5). pp. 769-774.

Kumar, N (1983) Is one-parameter scaling theory of localisation consistent? Comment on Schuh's comment. In: Journal of Physics C: Solid State Physics, 16 (21). L745-L746.

Kumar, N (1983) Note on the one-parameter scaling theory of localisation. In: Journal of Physics C: Solid State Physics, 16 (4). L109-L111.

Kumar, N (1983) Note on the one-parameter scaling theory of localisation. In: Journal of Physics C: Solid State Physics, 16 (4). L109-L111.

Kumar, N and March, NH and Wasserman, A (1982) Critical-point Properties of Liquids and the Born-Green Theory. In: Physics and Chemistry of Liquids, 11 (3). pp. 271-275.

Kumar, N and Jayannavar, AM (1982) Frequency and temperature-dependent mobility of a charged carrier on a randomly interrupted strand. In: Physical Review B: Condensed Matter, 25 (6). pp. 4291-4294.

Jayannavar, AM and Kumar, N (1982) Nondiffusive Quantum Transport in a Dynamically Disordered Medium. In: Physical Review Letters, 48 (8). pp. 553-556.

Amritkar, RE and Kumar, N and Srinivasan, R (1981) Observability of conduction electron spin resonance (CESR) in superconductors. In: Solid State Communications, 38 (11). pp. 1095-1097.

Jayannavar, AM and Kumar, N (1981) Orbital diamagnetism of a charged Brownian particle undergoing a birth-death process. In: Journal Of Physics A-Mathematical And General, 14 (6). pp. 1399-1405.

Amritkar, RE and Kumar, N (1978) Coherence factors in excitonic insulators. In: Solid State Communications, 26 (10). pp. 627-631.

Kumar, N (1978) On Renormalization-Group Theoretic Approach to Anderson Localisation. In: Current Science (Bangalore), 47 (5). 143-144 .

Krishan, V and Kumar, N (1978) Upper mass limit for neutron star stability against black hole formation. In: Astrophysics and Space Science, 57 (1). 241-243 .

Heinrichs, J and Kumar, A Anil and Kumar, N (1977) Diffusion of localized optical excitations and trap emission in ruby. In: Journal of Physics C: Solid State Physics, 10 (3). pp. 391-396.

Heinrichs, J and Kumar, AA and Kumar, N (1976) Low-field hopping conductivity in granular metals. In: Journal of Physics C: Solid State Physics, 9 (17). pp. 3249-3257.

Kumar, N and Heinrichs, J and Kumar, AA (1975) Self-consistent theory of localization in weakly disordered systems. In: Solid State Communications, 17 (4). pp. 541-544.

Kumar, N and Kumar, AA (1974) Infinite divisibility and critical phenomena. In: Lettere Al Nuovo Cimento (1971 – 1985), 11 (1). pp. 39-43.

Kumar, N (1974) Intrinsic two-phonon-exchange mechanism of superconductivity and enhancement of Tc. In: Physical Review B: Condensed Matter, 9 (11). pp. 4993-4995.

Nandiniand, R and Kumar, N (1974) Resistance Minimum in Dilute Magnetic Alloys in the Absence of Impurity Moments. In: Physica Status Solidi B, 63 (1). 377 -384.

Kumar, N and Subramanian, RR (1974) A probabilistic approach to the problem of electron localization in disordered systems and sharpness of the mobility edge. In: Journal of Physics C: Solid State Physics, 7 (10). pp. 1817-1821.

Krishnasamy, L and Kumar, N (1973) Brillouin Scattering by Phonons Renormalized by Two-Magnon Excitations in Ferromagnetic Dielectrics. In: physica status solidi (b), 60 (2). 539 -545.

Reddy, AKN and Kumar, N (1973) Dipole-assisted mechanism for ion-transport across nerve cell-membranes. In: Current Science (Bangalore), 42 (10). pp. 337-339.

Nandini, R and Kumar, N (1973) Problem In Random Lattice Statics - Application To Fluorescence Quenching In Solid Phosphors Containing Random Imperfections. In: Progress of Theoretical Physics, 49 (5). pp. 1420-1427.

Krishnasami, MrsL and Kumar, N (1972) Phonon-mediated two-magnon light scattering from ferromagnetic insulators. In: Physics Letters A, 41 (5). pp. 445-446.

Kumar, N and Sridhar, R (1972) Exact energy eigenvalues for an attractive Coulomb potential with zero-radius hard core. In: Physics Letters A, 39 (5). pp. 389-390.

Kumar, N and Nandini, MissR (1972) Undamped Cooper pairs in a non-degenerate electron system. In: Physics Letters A, 38 (6). pp. 425-426.

Kumar, N (1971) Quantum kinematics of Fermi-Dirac vacuum-plus-one-electron problem. In: Proceedings of the Indian Academy of Sciences - Section A, 74 (2). pp. 79-82.

Kumar, N and Sinha, KP (1971) Quantum theoretic explanation of the Schwarz-Hora effect. In: Proceedings of the Indian Academy of Sciences - Section A, 74 (2). pp. 91-98.

Kumar, N and Sinha, KP (1971) Insulator-metal transition. In: Proceedings of the Indian Academy of Sciences - Section A, 73 (6). pp. 313-323.

Editorials/Short Communications

Ghosh, S and Sood, AK and Kumar, N (2003) Carbon nanotubes provide a charge - Response. In: Science, 300 (5623). pp. 1235-1236.

Kumar, N and Rao, CNR (1997) The nature of charge ordering in rare earth manganates and its strong dependence on the size of the A-site cations. In: Journal of Solid State Chemistry, 129 (2). pp. 363-366.

Pradhan, Prabhakar and Kumar, N (1994) Localization of light in coherently amplifying random media. In: Physical Review B: Condensed Matter, 50 (13). pp. 9644-9647.

Nacir, Tit and Prabhakar , Pradhan and Kumar, N (1994) Length-scale-dependent ensemble-averaged conductance of a 1D disordered conductor: Conductance minimum. In: Physical Review B: Condensed Matter, 49 (20). pp. 14715-14717.

Kumar, N (1993) Two-Fermi liquid model for high Tc superconductivity involving suppression of tunnelling by decoherence. In: Current Science (Bangalore), 64 (10). pp. 754-755.

Kumar, N (1991) Faraday and his fields. In: Current Science (Bangalore), 61 (12). pp. 790-791.

Simon, R and Kumar, N (1988) A note on the Berry phase for systems having one degree of freedom. In: Journal of Physics A: Mathematical and General, 21 (7). pp. 1725-1727.

Jayannavar, AM and Kumar, N (1988) Mooij correlation in disordered metals. In: Physical Review B: Condensed Matter, 37 (1). 573 -576.

Kumar, N and Jayannavar, AM (1986) Resistance fluctuation at the mobility edge. In: Journal of Physics C: Solid State Physics, 19 (4). L85-L89.

Preprint

Sarangi, S and Chockalingam, SP and Mavinkurve, Raghav G and Bhat, SV and Kumar, N (2005) Equipartition of Current in Parallel Conductors on Cooling Through the Superconducting Transition. [Preprint]

This list was generated on Mon Sep 22 06:11:04 2014 IST.