Laboratory for Advanced Materials Science and Technology (LAMSAT)

Papers

2010

鈥 D. Mukherjee, T. Dhakal, R. Hyde, P. Mukherjee, H. Srikanth, and S. Witanachchi, 鈥淩ole of Epitaxy in Controlling the Magnetic and Magnetostrictive Properties of Cobolt Ferrite-PZT Bilayers鈥, Journal of Physics D: Applied Physics, Vol. 43, pg. 485001 (2010). PDF


鈥 A. Chaturvedi, T.P. Dhakal, S. Witanachchi, A.T. Le, M.H. Phan, and H. Srikanth 鈥淐ritical Length and Giant Magnetoimpedance in Co69Fe4.5Ni1.5Si10B15 Amorphous Ribbons鈥, Materials Sci. Eng. B-Advanced Functional Solid-state Materials, Vol. 172, No. 2, pg. 146-150 (2010). PDF


鈥 T. Dhakal, D. Mukherjee, R. Hyde, P. Mukherjee, M.H. Phan, H. Srikanth, and S. Witanachchi. 鈥淢agnetic Anisotropy and Field-Switching in Cobalt Ferrite Thin Films Deposited by Pulsed Laser Ablation鈥, Journal of Applied Physics, Vol. 107, No. 5, pg. 053914 1-6 (2010).

 

鈥 A. Chaturvedi, T.P. Dhakal, S. Witanachchi, A.T. Le, M.H. Phan, and H. Srikanth, 鈥淐orrelation Between Magnetic Softness, Sample Surface and Magnetoimpedance in Co69Fe4.5X1.5Si10B15 (X=Ni, Al, Cr) Amorphous Ribbons鈥, Physica B-Condensed Matter, Vol. 405, No. 13, pg. 2836-2839 (2010). PDF


鈥 D. Mukherjee, T. Dhakal, H. Srikanth, P. Mukherjee, and S. Witanachchi, 鈥淓vidence of Carrier-Mediated Magnetism in Mn-Doped ZnO Thin Films鈥, Physical Review B, Vol. 81, No. 20, pg. 205202 (2010). PDF


鈥 T. Dhakal, D. Mukherjee, P. Mukherjee, M. Phan, H. Srikanth, and S. Witanachchi, 鈥淢agnetic Anisotropy and Field-Switching in Cobalt Ferrite Thin Films Deposited by Pulsed Laser Ablation鈥, Journal of Applied Physics, Vol. 107, No. 5, pg. 053914 (2010). PDF


鈥 H. Verma, D. Mukherjee, S. Witanachchi, P. Mukherjee, and M. Batzill, 鈥淐omparative Study of ZnO Thin Film and Nano-Pillar Growth on YSZ(111) and Sapphire (0001) Substrates by Pulsed Laser Deposition鈥, Journal of Crystal Growth, Vol. 312, pg 2012-2018 (2010). PDF


鈥 D. Mukherjee, R. Hyde, T. Dhakal, H. Srikanth, P. Mukherjee, and S. Witanachchi. 鈥淚nvestigation of the Pb Depletion in Single and Dual Pulsed Laser Deposited Epitaxial PZT Thin Films and Their Structural Characterization鈥, in Multiferroic and Ferroelectric Materials (A. Gruverman, C.J. Fennie, I. Kunishima, B. Noheda, T.W. Noh, eds.) 2009 Materials Research Society Symposium Proceedings, Vol. 1199E, pg. 1199-F03-37, Warrendale, PA (2010). PDF


鈥 T. Dhakal, D. Mukherjee, R. Hyde, H. Srikanth, P. Mukherjee, and S. Witanachchi. 鈥淓nhancement in Ferroelectricity in V-Doped ZnO Thin Film Grown Using Laser Ablation鈥, in Multiferroic and Ferroelectric Materials (A. Gruverman, C.J. Fennie, I. Kunishima, B. Noheda, T.W. Noh, ed.) 2009 Materials Research Society Symposium Proceedings, Vol. 1199E, pg. 1199-F03-44, Warrendale, PA (2010). PDF


2009

鈥 J. Rejman, T. Dhakal, P. Mukherjee, S. Hariharan, and S. Witanachchi, 鈥淧ulsed Laser Deposition as a Novel Growth Technique of Multiferroic LuFe2O4 Thin Films鈥, Materials Research Society Symposium Proceedings, Vol. 1199E, pg. 1199-F03-22, (2009). PDF


鈥 S. Witanachchi, H. Weerasingha, A. Abou Mourad, and P. Mukherjee, 鈥淚nterface Interaction Between Thin Films of Transition Metal Compounds and Silicon Substrates Across the Native SiO2 Layer鈥, Physica B, Vol. 405, pg. 208-213 (2009). PDF


鈥 G. Dedigamuwa, J. Lewis, J. Zhang, X. Jiang, P. Mukherjee, and S. Witanachchi,  鈥淓nhanced Charge Transport in Surfactant-Free PbSe Quantum Dot Films Grown by a Laser-Assisted Spray Process鈥, Applied Physics Letters, Vol. 95, pg. 122107 (2009). PDF


鈥 D. Mukherjee, T. Dhakal, H. Srikanth, P. Mukherjee, and S. Witanachchi, 鈥淕rowth of ZnO:Mn/ZnO:V Heterostructures and Ferroelectric-Ferromagnetic Characterization鈥, Materials Research Society Symposium Proceedings, Vol. 1161, pg. 1161-I02-02 (2009). PDF


鈥 S. Pal, S. Chandra, M. H. Phan, P. Mukherjee, and H. Srikanth, "Carbon Nanostraws: Nanotubes Filled with Superparamagnetic Particles", Nanotechnology, Vol. 20, pg. 485604 (2009). PDF


鈥 S. Pal, M. B. Morales, P. Mukherjee, and H. Srikanth, 鈥淪ynthesis and Magnetic Properties of Gold-Coated Iron Oxide Nanoparticles鈥, Journal of Applied Physics, Vol. 105, 07B504 (2009) PDF


2008

鈥 R. Hyde, M. Beekman, G.S. Nolas, P. Mukherjee, and S. Witanachchi, 鈥淕rowth and Characterization of Germanium-Based Type I Clathrate Thin Films Deposited by Pulsed Laser Ablation鈥, in Advances in Electronic Ceramics, Ceramic Engineering and Science Proceedings (C. Randal, Hua-Tay Lin, K. Koumoto, and P. Clem, eds.), 2007 Proceedings of the 31st International Conference on Advanced Ceramics and Composites, American Ceramics Society, Vol. 28, Issue 8, pg. 211, Wiley (2008). PDF


2007

鈥 R. Heindl, H. Srikanth, S. Witanachchi, P. Mukherjee , A. Heim, G. Matthews, S. Balachandran, S. Natarajan, and T. Weller, 鈥淢ultifunctional Ferromagnetic Ferroelectric Thin Films for Microwave Applications鈥, Applied Physics Letters, Vol. 90, pg. 252507 (2007). PDF


鈥 G. S. Dedigamuwa, P. Mukherjee, H. Srikanth, and S. Witanachchi, 鈥淕rowth and Magnetic Characterization of Barium Ferrite Nanoparticle Coatings鈥, Advances in Electronic Ceramics, Ceramic Engineering and Science Proceedings, (C. Randal, Hua-Tay Lin, K. Koumoto, and P. Clem, eds.) Vol. 28, (2007).

 

鈥 R. Heindl, H. Srikanth, S. Witanachchi, P. Mukherjee , A. Heim, G. Matthews, T. Weller, A.S.Tatarenko, and G. Srinivasan, 鈥淪tructure, Magnetism and Tunable Microwave Properties of PLD-Grown Barium Ferrite/Barium Strontium Titanate Bi-Layer Films鈥, Journal of  Applied Physics, Vol. 101, 09M503, (2007). PDF


鈥 S. Witanachchi, H. Abou Mourad, H. Srikanth, and P. Mukherjee, 鈥淎nomalous Conductivity and Positive Magnetoresistance in FeSi- SiO2-Si Structures in the Vicinity of a Resistive Transition鈥, Applied Physics Letters, Vol. 90, no. 5, pg. 052102, (2007). PDF


鈥 S. Witanachchi, G. Dedigamuwa, and P. Mukherjee, 鈥淟aser-Assisted Spray Pyrolysis for the Growth of TiO2 and Fe2O3 Nanoparticle Coatings鈥, Journal of Materials Research, Vol. 22, pg. 649-654 (2007). PDF


2006

鈥 S. Witanachchi, R. Hyde, M. Beekman, D. Mukherjee, P. Mukherjee, and G. S. Nolas, 鈥淪ynthesis and Characterization of Bulk and Thin Film Clathrates for Solid State Power Conversion Applications鈥, IEEE Proceedings of the 25th International Conference on Thermoelectrics, Vienna, Austria, pg. 44-47 (2006). PDF


鈥 S. Witanachchi, R. Hyde, H. S. Nagaraja, M. Beekman, G. S. Nolas, and P. Mukherjee, 鈥淕rowth and Characterization of Germanium-Based Type I Clathrate Thin Films Deposited by Pulsed Laser Ablation鈥, in Materials and Technologies for Direct Thermal-to-Electric Energy Conversion (J. Yang, T.P. Hogan, R. Funahashi, G.S. Nolas, eds.) 2005 Materials Research Society Symposium Proceedings, Vol. 886, pg. 0886-F10-03, Warrendale, PA (2006). PDF


鈥 S. Witanachchi, H. Abou Mourad, and P. Mukherjee, 鈥淎nomalous Metal-to-Insulator Transition in FeSi Films Deposited on SiO2/Si Substrates鈥, Journal of Applied Physics, Vol. 99, No. 7, pg. 073710 (2006). PDF


2004

鈥 G. Dedigamuwa, U. Choppali, P. Mukherjee, and S. Witanachchi, 鈥淟aser-Assisted Spray Pyrolysis Process for the Growth of TiC Nanoparticle Coatings鈥, Nanoparticles and Nanowire Building Blocks 鈥 Synthesis, Processing, Characterization and Theory, Materials Research Society Symposium Proceedings (2004).

鈥 S. Witanachchi, P. Mahawela, and P. Mukherjee, 鈥淟aser-Triggered Hollow-Cathode Plasma Process for Film Growth鈥, Journal of Vacuum Science and Technology A, Vol. 22, No. 5, pg. 2061 (2004). PDF


2002

鈥 P. Mukherjee, S. Chen, J.B. Cuff, P. Sakthivel, and S. Witanachchi, "Evidence for the Physical Basis and Universality of the Elimination of Particulates using Dual-Laser Ablation. I. Dynamic Time-Resolved Target Melt Studies, and Film Growth of Y2O3  and ZnO", Journal of Applied Physics, Vol. 91, pg. 1828-1836 (2002). PDF


鈥 P. Mukherjee, S. Chen, J. B. Cuff, and S. Witanachchi, "Evidence for the Physical Basis and Universality of the Elimination of Particulates using Dual-Laser Ablation. II. Dynamic Time-Resolved Target Reflectivity and Film Growth of Zn", Journal of Applied Physics, Vol. 91, pg. 1837-1844 (2002). PDF


2001

鈥 P. Mukherjee, S. Chen, and Sarath Witanachchi, "A Novel Continuously Tunable, High Spectral Resolution Optical Filter for Two-Dimensional Imaging", Review of Scientific Instruments, Vol. 72, pg. 2624-2632 (2001). PDF


鈥 P. Mukherjee, J. B. Cuff, and S. Witanachchi, "A Novel Technique for Low-Jitter Dual-Laser Synchronization in a Thin Film Deposition System", Review of Scientific Instruments, Vol. 72, pg. 2380-2386 (2001). PDF


2000 and Prior

鈥 S. Witanachchi, A. M. Miyawa, and P. Mukherjee, "Highly Ionized Carbon Plasma Generation by Dual-Laser Ablation for Diamond-Like Carbon Film Growth", Laser-Solid Interactions for Materials Processing, Materials Research Society Symposium Proceedings, Vol. 616, pg. 235-240 (2000). PDF


鈥 S. Witanachchi, P. Mahawela, and P. Mukherjee, "A Hollow-Cathode Transient Plasma Process for Thin Film Growth", New Methods, Mechanisms and Models of Vapor Deposition, Materials Research Society Symposium Proceedings, Vol. 617, J3.6.1-6, (2000).

 

鈥 P. Mukherjee, S. Chen, and S. Witanachchi, 鈥淓ffect of Initial Plasma Geometry and Temperature on Dynamic Plume Expansion in Dual-Laser Ablation鈥, Applied Physics Letters, Vol. 74, pg. 1546-1548 (1999). PDF


鈥 P. Mukherjee, J. B. Cuff, and S. Witanachchi, 鈥淧lume Expansion and Stoichiometry in the Growth of Multi-Component Thin Films Using Dual-Laser Ablation鈥, Applied Surface Science, Vol. 127-129, pg. 620-625 (1998). PDF


鈥 S. Witanachchi, Y. Ying, A. M. Miyawa, and P. Mukherjee, 鈥淩oom Temperature Growth of Conducting ZnO Films鈥, Thin Film Structures for Photovoltaics, Materials Research Society Symposium Proceedings, Vol. 485, pg. 185-190 (1997). PDF


鈥 P. Mukherjee, P. Sakthivel, and S. Witanachchi, "Optical Detection of Slow Excited Neutrals in Plasma-Assisted Excimer Laser Ablation", Advanced Laser Processing of Materials, Materials Research Society Symposium Proceedings, Vol. 397, pg. 93-98 (1995). PDF


鈥 S. Witanachchi, K. Ahmed, P. Sakthivel, and P. Mukherjee, "Dual-Laser Ablation for Particulate-Free Film Growth", Applied Physics Letters, Vol. 66, pg. 1469 (1995). PDF


鈥 S. Witanachchi and P. Mukherjee, "Spot-size Dependent Bifurcation of Laser Ablated Plumes", Journal of Applied Physics, Vol. 78, pg. 4099-4103 (1995). PDF


鈥 S. Witanachchi and P. Mukherjee, "Role of Temporal Delay in Dual-Laser Ablated Plumes", Journal of Vacuum Science and Technology, Vol. A13, pg. 1171-1174 (1995). PDF


鈥 A. J. Kontkiewicz, A. M. Kontkiewicz, J. Siejka, S. Sen, G. Nowak, A. M. Hoff, P. Sakthivel, K. Ahmed, P. Mukherjee, S. Witanachchi, and J. Lagowski, "Evidence that Blue Luminescence of Oxidized Porous Silicon Originates From SiO2", Applied Physics Letters, Vol. 65, pg. 1436-1438 (1994). PDF


鈥 S. Sen, A. J. Kontkiewicz, J. Siejka, S. Sen, G. Nowak, P. Sakthivel, K. Ahmed, P. Mukherjee, S. Witanachchi, A. M. Hoff, and J. Lagowski, "Effect of Rapid Thermal Oxidation on Blue and Red Luminescence Bands of Porous Silicon", Materials Research Society Symposium Proceedings, (1994).

 

鈥 S. Witanachchi and P.J. Wolf, "Activated Reactive Laser Deposition of GeO2 Films鈥, Journal of Applied Physics, Vol. 76, pg. 2185-2190 (1994). PDF


鈥 P.J. Wolf, B.M. Patterson, and S. Witanachchi, "Spectroscopic Investigation of Laser Ablated Germanium Oxide", Materials Research Society Symposium Proceedings, Vol. 334, pg. 347-352 (1993). PDF


鈥 D. M. Oman, P. Sakthivel, and P. Mukherjee, "Temporal Synchronization of Independently Frequency Tunable Dual CO2 Laser Pulses", Journal of Applied Physics, Vol. 74, pg. 3599-3601 (1993).


鈥 P. Mukherjee, P. Sakthivel, K. Ahmed, and S. Witanachchi, "Study of Ion Activation in the In-situ Low-Temperature Laser Deposition of Superconducting YBa2Cu3O7-未 Films", Journal of Applied Physics, Vol. 74, pg. 1205-1208 (1993). PDF


鈥 P. Mukherjee and H. S. Kwok, "Resonant Inhomogeneous Molecular Absorption of Ultrashort Laser Pulses : Role of the Pulse Spectrum", Journal of the Optical Society of America B, Vol. 10, pg. 425-432 (1993). PDF


鈥 I. J. Bigio, T. R. Gosnell, P. Mukherjee, and J. D. Saffer, "Microwave Absorption Spectroscopy of DNA", Biopolymers, Vol. 33, No. 1, pg. 147-150 (1993).

 

鈥 N. D. Weston, P. Sakthivel, and P. Mukherjee, "Ultrasensitive Spectral Trace Detection of Individual Molecular Components in an Atmospheric Binary Mixture", Applied Optics, Vol. 32, pg. 828-835 (1993). PDF


鈥 S. Witanachchi, K. Ahmed, P. Sakthivel, and P. Mukherjee, "Dynamics of Ionic Enhancement in the Plasma-Assisted Laser Deposition of High Tc Superconductors", in Superconductivity and its Applications, H. S. Kwok, D. T. Shaw and M. J. Naughton, eds., AIP Conference Proceedings, Vol. 273, pg. 102-111 (1993). PDF


鈥 S. Witanachchi, K. Ahmed, P. Sakthivel, and P. Mukherjee, "An Ion Probe Study of Plasma-Assisted Laser Deposition", in Laser Ablation in Materials Processing: Fundamentals and Applications, (B. Braren, J. J. Dubowski and D. P. Norton, eds.) Materials Research Society Symposium Proceedings, Vol. 285, pg. 51-56 (1992). PDF


鈥 P. Sakthivel and P. Mukherjee, "Continuously Variable Distortion-Free Attenuation of High Power Transversely Excited Atmospheric CO2 Laser Pulses", Review of Scientific Instruments, Vol. 63, pg. 5294-5298 (1992). PDF


鈥 P. Mukherjee, P. Sakthivel, K. Ahmed, and S. Witanachchi, "Enhanced Ionization in Activated Reactive Laser-Ablated Plumes", LEOS '92 Conference Proceedings, IEEE Lasers and Electro-Optics Society, pg. 396-397 (Nov. 1992).