Search Results - "Mehta, G.K"

Adhesion enhancement of diamond coatings on WC tools by high energy ion irradiation by Dilawar, Nita, Kapil, Rahul, Brahamprakash, Vankar, V.D, Avasthi, D.K, Kabiraj, D, Mehta, G.K

“…Microcrystalline diamond thin films were deposited on cemented tungsten carbide cutting tools by hot-filament chemical vapour deposition process. The coatings…”
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Microstructural modifications in diamond-like carbon thin films caused by high energy ion irradiation by Barshilia, H.C., Sah, Somna, Mehta, B.R., Vankar, V.D., Avasthi, D.K., Jaipal, Mehta, G.K.

“…The effect of high energy (85 MeV) nickel ions on diamond-like carbon thin films, deposited by microwave discharge of acetylene and methane gases mixed with…”
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Preface by Mehta, G.K

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Preface by Mehta, G.K.

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Accelerator based materials science research in India by Mehta, G.K.

“…Materials science research with ion beams has been basically developed by nuclear physicists. It started with the development of accelerator based techniques…”
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Effect of disorder on the exponent in the coherence region in high temperature superconductors by Kaur, Manmeet, Srinivasan, R., Mehta, G.K., Kanjilal, D., Pinto, R., Ogale, S.B., Mohan, S., Ganesan, V.

“…Effect of disorder on the electrical resistance near the superconducting transition temperature in the paracoherence region of high temperature YBa 2Cu 3O 7− δ…”
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Materials modification with high energy heavy ions by Mehta, G.K

“…Fast ions moving through condensed matter produce a track of excitations and ionizations that can have lasting effects depending on the properties of the…”
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AC response of vortices subjected to pinning by columnar defects in Tl 2Ba 2CaCu 2O 8 epitaxial films by Sahoo, L.K, Budhani, R.C, Kanjilal, D, Mehta, G.K

“…A micro-Hall-probe-based ac susceptometer is used to study the dynamics of vortices in Tl 2Ba 2CaCu 2O 8 (Tl-2212) epitaxial films with and without correlated…”
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Influence of 85 MeV oxygen ion irradiation on magnetization behavior of micron-sized and nano-sized powders of strontium ferrite (SrFe 12O 19) by Shinde, S.R, Bhagwat, A, Patil, S.I, Ogale, S.B, Mehta, G.K, Date, S.K, Marest, G

“…The consequences of 85 MeV 16O ion irradiations on the magnetization behavior of micron-sized and nano-sized powders of hexagonal ferrite (SrFe 12O 19) are…”
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AC response of vortices subjected to pinning by columnar defects in Tl2Ba2CaCu2O8 epitaxial films by Sahoo, L.K, Budhani, R.C, Kanjilal, D, Mehta, G.K

“…A micro-Hall-probe-based ac susceptometer is used to study the dynamics of vortices in Tl2Ba2CaCu2O8 (Tl-2212) epitaxial films with and without correlated…”
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Influence of 85MeV oxygen ion irradiation on magnetization behavior of micron-sized and nano-sized powders of strontium ferrite (SrFe12O19) by Shinde, S.R, Bhagwat, A, Patil, S.I, Ogale, S.B, Mehta, G.K, Date, S.K, Marest, G

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Angular dependence of magnetotransport properties in YBa 2Cu 3O 7−δ films with columnar defects by Bhalla, G.L., Divakar, Ujjual, Trigunayat, G.C., Kumar, Ravi, Kanjilal, D., Mehta, G.K.

“…Vortex dynamics of YBa 2Cu 3O 7−δ films with controlled columnar defects (CD) were investigated using angle resolved resistivity measurements. The Bose Glass…”
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Swift heavy ion-based materials science research at NSC by Singh, J.P, Singh, R, Ghosh, S, Tripathi, A, Kabiraj, D, Gupta, S, Som, T, Kumar, Ravi, Arora, S.K, Asokan, K, Avasthi, D.K, Kanjilal, D, Mishra, N.C, Mehta, G.K

“…Effects of large electronic excitation in different types of materials, viz. metals, semiconductors, superconductors, polymers and organic crystals are being…”
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XRT mapping of strain induced by 200 MeV Ag 14+ ions in Si(001) by Sharma, B.B., Gupta, S.R., Kumar, Vikram, Tiwari, U., Sen, P., Mehta, G.K.

“…The strain field generated by 200 MeV Ag 14+ ions in Si (001) crystals has been investigated using X-ray topography. By choosing suitable diffraction vectors…”
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1/ f noise properties of a La 1− xCa xMnO 3 thin film by Arora, S.K, Kumar, Ravi, Kanjilal, D, Bathe, Ravi, Patil, S.I, Ogale, S.B, Mehta, G.K

“…The voltage noise studies of the La 0.75Ca 0.25MnO 3 (LCMO) thin film in the low frequency region are presented. The observed noise arises due to resistance…”
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Radiation hardness of polycrystalline diamond thin films irradiated with 100 MeV I 7+ ions by Dilawar, Nita, Kapil, Rahul, Vankar, V.D., Avasthi, D.K., Kabiraj, D., Mehta, G.K.

“…Polycrystalline diamond thin films grown by hot-filament chemical vapour deposition (CVD) process were irradiated with 100 MeV I 7+ ions. The as-deposited and…”
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Radiation hardness of polycrystalline diamond thin films irradiated with 100 MeV I7+ ions by Dilawar, Nita, Kapil, Rahul, Vankar, V.D., Avasthi, D.K., Kabiraj, D., Mehta, G.K.

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Dissociation kinetics of molecular hydrogen in a microwave plasma and its influence on the hydrogen content in diamond films by Sharda, Tarun, Misra, D.S, Avasthi, D.K, Mehta, G.K

“…Double probe measurements were performed in a microwave plasma at various hydrogen pressures. Electron temperature increases with the growth pressure. Electron…”
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Granularity controlled irradiation response of cuprate superconductors by Mishra, N.C, Behera, D, Mohanty, T, Mohanta, D, Kanjilal, D, Mehta, G.K, Pinto, R

“…Confining to an energy range where ions can neither create defects through elastic energy loss nor they can create defects through latent track formation, we…”
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In situ 1/ f noise studies on swift heavy ion irradiated p-type silicon by Arora, S.K, Singh, Rajendra, Kumar, Ravi, Kanjilal, D, Mehta, G.K

“…We have used in situ resistance and conduction noise measurements to study the influence of swift heavy ion (SHI) irradiation induced defects on the conduction…”
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