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  1. No Access

    Article

    Critical exponent of the electrical conductivity in the paracoherence region of a thin film of YBa2Cu3O7−x

    Critical exponent of the electrical conductivity in the paracoherence region (γ) of the high temperature superconductor YBa2Cu3O7−x (YBCO) has been estimated for high quality thin film on ZrO2 su...

    Manmeet K Marhas, K Balakrishnan, V Ganesan, R Srinivasan… in Bulletin of Materials Science (1994)

  2. No Access

    Article

    Persistent Photoconductivity Study on Ion Irradiated Carbon Films

    Conducting carbon films are irradiated by high energy ion beam and persistent photoconductivity has been found from the irradiated samples. A complex distribution of traps created mostly by random displacement...

    Somnath Bhattacharyya, D. Kanjilal, S. V. Subramanyam in MRS Online Proceedings Library (1995)

  3. No Access

    Chapter and Conference Paper

    Vortex Correlation in Bi2Sr2Ca1Cu2Ox Single Crystals with Columnar Defects

    Magnetic properties have been carried out using SQUID and ac susceptometer on Bi2Sr2Ca1Cu2Ox single crystals with different matching fields BΦ, corresponding to equal numbers of vortices and defects. The angle de...

    B. Chen, A. K. Pradhan, Naoki Koshizuka, D. Kanjilal… in Advances in Superconductivity X (1998)

  4. No Access

    Chapter and Conference Paper

    Melting transision in Bi-2212 crystals in the presence of point and columnar defects

    Effects of point disorder and columnar defects on the magnetotransport properties of Bi-2212 single crystals have been studied using flux transformer tecnique. The melting transition in BSCCO crystal is found ...

    A. K. Pradhan, B. Chen, G. D. Gu, D. Kanjilal, K. Nakao… in Advances in Superconductivity X (1998)

  5. No Access

    Article

    1/f Noise properties of swift heavy ion irradiated epitaxial thin films of YBCO

    Effect of 250 MeV107Ag ion irradiation induced columnar defects on the noise properties of the YBCO superconductor in the normal and superconducting state have been investigated. Magnitude of the spectral density...

    S K Arora, Ravi Kumar, D Kanjilal, G K Mehta, S Khatua… in Bulletin of Materials Science (1999)

  6. No Access

    Article

    Temperature dependence of current—voltage characteristics of Au/n-GaAs epitaxial Schottky diode

    The influence of temperature on current-voltage (I-V) characteristics of Au/n-GaAs Schottky diode formed on n-GaAs epitaxial layer grown by metal organic chemical vapour deposition technique has been investigated...

    R. Singh, S. K. Arora, Renu Tyagi, S. K. Agarwal… in Bulletin of Materials Science (2000)

  7. No Access

    Article

    Annealing effects on electrical characteristics of 100 MeV 28Si implantation in GaAs

    Electrical characteristics of single crystal 〈100〉 orientation n-GaAs substrates implanted at room temperature with 100 MeV 28Si ions to a dose of 1 × 1014 ions cm-2 are reported. The room temperature electrical ...

    A. M. Narsale, A. R. Damle, Yousuf P. Ali… in Journal of Materials Science: Materials in… (2000)

  8. No Access

    Chapter and Conference Paper

    Electronic-Excitation-Induced Enhancement in Metallicity on HOPG and Si Surfaces: In Situ STM/STS Studies

    Surfaces of highly oriented pyrolytic graphite (HOPG) and hydrogen passivated H-Si(111) after swift heavy ion (200MeV Au+13 and Ag+14 ions) irradiation have been investigated by home made in-situ high va cuum sca...

    J. P. Singh, D. Kanjilal in Nanoscale Spectroscopy and Its Application… (2002)

  9. No Access

    Article

    Peak effect at microwave frequencies in swift heavy ion irradiated YBa2Cu3O7-δthin films - investigation of vortex dynamics

    The vortex dynamics at microwave frequencies in YBa2Cu3O7-δ(YBCO) films has been studied. We observe a peak in the microwave surface resistance Rs vs. T (temperature) plots at 4.88 GHz in some films in magnetic f...

    Tamalika Banerjee, A. R. Bhangale, P. Raychaudhuri… in MRS Online Proceedings Library (2002)

  10. No Access

    Article

    Effect of swift heavy ion irradiation on surface resistance of DyBa2Cu3O7-δ thin films at microwave frequencies

    We report the observation of a propounced peak in surface resistance at microwave frequencies of 4.88 GHz and 9.55 GHz and its disappearance after irradiation with swift ions in laser ablated DyBa2Cu3O7-δ (DBCO) ...

    Ujwala Ail, Tamalika Banerjee, A R Bhangale, D Kanjilal, R Pinto in Pramana (2002)

  11. No Access

    Article

    Modification of magnetic anisotropy in metallic glasses using high-energy ion beam irradiation

    Heavy ion irradiation in the electronic stop** power region induces macroscopic dimensional change in metallic glasses and introduces magnetic anisotropy in some magnetic materials. The present work is on th...

    KV Amrute, UR Mhatre, SK Sinha, DC Kothari, R Nagarajan, D Kanjilal in Pramana (2002)

  12. No Access

    Article

    Peak effect at microwave frequencies in swift heavy ion irradiated YBa2Cu3O7-δ thin films

    The vortex dynamics at microwave frequencies in YBa2Cu3O7-δ (YBCO) films have been studied. We observe a peak in the microwave (4.88 and 9.55 GHz) surface resistance in some films in magnetic fields up to 0.8 T. ...

    Tamalika Banerjee, Avinash Bhangale, D Kanjilal, S P Pai, R Pinto in Pramana (2002)

  13. No Access

    Article

    The non-linear dynamics of vortices subjected to correlated and random pinning disorders in a quasi-2D superconductor

    Understanding the dynamics of vortex matter subjected to random and correlated pinning disorders in layered superconductors remains a topic of considerable interest. The dynamical behavior of vortices in these...

    Leena K. Sahoo, R C Budhani, D Kanjilal, G K Mehta in Pramana (2002)

  14. No Access

    Article

    ECR ion source based low energy ion beam facility

    Mass analyzed highly charged ion beams of energy ranging from a few keV to a few MeV plays an important role in various aspects of research in modern physics. In this paper a unique low energy ion beam facilit...

    P Kumar, G Rodrigues, U K Rao, C P Safvan, D Kanjilal, A Roy in Pramana (2002)

  15. No Access

    Article

    New modifications in 15 UD pelletron at nuclear science centre

    The 15 UD pelletron at NSC has been operational and performed well during the last 11 years. There have been major modifications performed for upgradation of pelletron system over this period. Major upgradatio...

    S Chopra, N S Pawar, M P Singh, Rakesh Kumar, J Prasad, V P Patel, Raj Pal… in Pramana (2002)

  16. No Access

    Article

    Effect of 80 MeV oxygen ion beam irradiation on the properties of CdTe thin films

    Polycrystalline CdTe thin films were irradiated with 80 MeV oxygen (O6+) ions for various fluences and its effect on the composition, structure, surface topography and optical properties have been investigated. T...

    R. Sathyamoorthy, S. Chandramohan, P. Sudhagar, D. Kanjilal… in Journal of Materials Science (2007)

  17. No Access

    Article

    Influence of SHI irradiation on the structure and surface topography of CdTe thin films on flexible substrate

    Impact of ion irradiation on thin films is an emerging area for materials modification. CdTe thin films grown by thermal evaporation on flexible molybdenum (Mo) substrate were irradiated with Swift (100 MeV) Ag+7

    S. Chandramohan, R. Sathyamoorthy… in Journal of Materials Science: Materials in… (2007)

  18. No Access

    Article

    Synthesis and improved photoluminescence of Eu:ZnO phosphor

    Zinc oxide doped with europium has been prepared by high temperature calcination method using ZnO, Eu2O3, and LiOH. Structural characterization by X-ray diffraction and optical studies by photoluminescence spectr...

    R. Krishna, D. Haranath, S. P. Singh, Harish Chander… in Journal of Materials Science (2007)

  19. No Access

    Article

    Mössbauer study of ferromagnetic metallic glasses irradiated by swift heavy ions at temperatures 100 and 300 K

    The effect of swift heavy ion irradiation on ferromagnetic metallic glasses Fe40Ni38Mo4B18 and Fe78Si9B13 has been studied. The ion beams used are 100 MeV 127I and 180 MeV 197Au. The specimens were irradiated at ...

    K. V. Amrute, D. C. Kothari, D. Kanjilal in Hyperfine Interactions (2008)

  20. No Access

    Chapter and Conference Paper

    Mössbauer study of ferromagnetic metallic glasses irradiated by swift heavy ions at temperatures 100 and 300 K

    The effect of swift heavy ion irradiation on ferromagnetic metallic glasses Fe40Ni38Mo4B18 and Fe78Si9B13 has been studied. The ion beams used are 100 MeV 127I and 180 MeV 197Au. The specimens were irradiated at ...

    K. V. Amrute, D. C. Kothari, D. Kanjilal in ICAME 2007 (2009)

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