• Size Effect Ordering in [FePt]100-xCrx Nanoparticles 

  Thompson, G. B.; Srivastava, C.; Harrell, J. W.; Nikles, D. E. (2006-03-02)

  A series of [FePt]100−xCrx nanoparticles (x=5, 10, and 16at.%) was chemically synthesized by two different techniques. In one method, the simultaneous chemical reduction of FeCl2∙4H2O, Pt-acetylacetonate, and Cr-acetylacetonate ...
• In Situ Transmission Electron Microscopy of Ion Irradiated Fe-Pt Alloy Thin Films 

  Thompson, G. B.; Morgan, N. W.; Birtcher, R. C. (2006-12-21)

  We report the microstructural evolution during irradiation of FePt and FePt 25at.% thin films sputter deposited onto electron transparent silicon monoxide substrates. The films were studied in situ for 500keV Kr+ irradiation ...
• Microstructures and Magnetic Alignment of L10 FePt Nanoparticles 

  Kang, Shishou; Shi, Shifan; Jia, Zhiyong; Thompson, G. B.; Nikles, David. E.; Harrell, J. W. (2007-05-09)

  Chemically ordered FePt nanoparticles were obtained by high temperature annealing a mixture of FePt particles with NaCl. After the NaCl was removed with de-ionized water, the transformed FePt nanoparticles were redispersed ...
• Formation of FePt Nanoparticles by Organometallic Synthesis 

  Bagaria, H. G.; Johnson, D. T.; Srivastava, C.; Thompson, G. B.; Shamsuzzoha, M.; Nikles, D. E. (2007-05-23)

  Our interest in determining the mechanism of FePt nanoparticle formation has led to this study of the evolution of particle size and composition during synthesis. FePt nanoparticles were prepared by the simultaneous reduction ...
• Selective Area Synthesis of Magnesium Oxide Nanowires 

  Kim, G.; Martens, R. L.; Thompson, G. B.; Kim, B. C.; Gupta, A. (2007-11-28)

  Single crystalline magnesium oxide MgO nanowires exhibiting a square cross section have been grown on 001-oriented MgO and Si substrates using the vapor-liquid-solid growth mechanism. While the nanowires grow vertically ...
• Formation Mechanism and Composition Distribution of FePt Nanoparticles 

  Srivastava, Chandan; Balasubramanian, Jayendra; Turner, C. Heath; Wiest, John M.; Bagaria, Hitesh G.; Thompson, Gregory B. (2007-11-27)

  Self-assembled FePt nanoparticle arrays are candidate structures for ultrahigh density magnetic storage media. One of the factors limiting their application to this technology is particle-to-particle compositional variation. ...
• Compositional Evolution During the Synthesis of FePt Nanoparticles 

  Thompson, G. B.; Srivastava, Chandan; Nikles, David E. (2008-09-25)

  A series of FePt nanoparticles was synthesized by the thermal decomposition of iron pentacarbonyl and reduction in platinum acetylacetonate in phenyl ether solvent. A range of precursor molar ratios of 2, 1.5, and 1 ...
• Compositional Dependent Thin Film Stress States 

  Thompson, G. B.; Fu, B. (2010-08-23)

  This paper addresses in situ stress evolution of two-component FexPt1−x, where x spanned 0 to 1, alloy thin films. The stresses of the high-temperature, quenched-in, solid solution phase was determined by in situ wafer ...
• Influence of Fe Underlayers on Stress Evolution of Ti in Ti/Fe Multilayers 

  Thompson, Gregory B.; Wan, Li (2016-09-07)

  A series of 40–2 nm bilayer spacing Ti/Fe multilayers were sputter-deposited. As the length scale of individual Ti layers equaled to 2 nm, Ti phase transforms from a hexagonal close packed (hcp)- to-body centered cubic ...
• Influence of Surface Roughness on Secondary Electron Emission from Graphite 

  Burton, Thomas S.; Back, Tyson C.; Fairchild, Steven B.; Thompson, Gregory B. (2017-06-15)

  In this study, the authors address how surface roughness alters secondary electron emission. By using specific grades of metallographic polishing pads, controlled levels of roughness and surface features were imparted. As ...
• Influence of the Nb Growth Surface on the Allotropic Ti Phase Transformation in Nb/Ti/Nb Nanolaminates 

  Thompson, Gregory B.; Wan, Li; Yu, Xiao-Xiang (2016-09-14)

  As the thickness of a thin film is decreased, the interfacial structure becomes paramount and crystals can undergo phase transformations. Molecular dynamic simulations have been performed to capture how such transformation ...
• Interrelationship of in Situ Growth Stress Evolution and Phase Transformations in Ti/W Multilayered Thin Films 

  Thompson, Gregory B.; Wan, Li; Yu, Xiao-Xiang; Zhou, Xuyang (2016-06-24)

  This paper addresses the in situ growth stress evolution and phase transformation of bcc to hcp Ti in Ti/W multilayered thin films. A series of equal layer thicknesses from 20 nm to 1 nm were deposited. As the bilayer ...
• L10 Ordering of FePt Thin Films using Sub-10 ms Laser Pulses 

  Thompson, G. B.; Inaba, Y.; Kang, S.; Izatt, J. R.; Harrell, J. W.; Kubota, Y.; Klemmer, T. J. (2009-03-12)

  The structural and magnetic properties of 10 nm FePt thin films annealed using a 1064 nm wavelength laser with 10, 7.5, 5.0, and 2.5 ms pulses have been examined. The A1 to L10 phase transformation was confirmed by x-ray ...
• Ta clustering and Microstructural Evolution in the A1 To L10Fe52PtX(Ta1−X) Phase Transformation 

  Thompson, Gregory B.; Means, D.; Wang, B. (2010-11-29)

  A series of Fe52Pt48,Fe52.3Pt46.3Ta1.4 and Fe52Pt40.7Ta7.3 thin films were sputter deposited and subsequently annealed at 550 and 750 °C for 30 min. The as-deposited films, which adopted the A1 phase, had a change from a ...
• Tailoring Nucleation and Growth Conditions for Narrow Compositional Distributions in Colloidal Synthesized FePt Nanoparticles 

  Thompson, Gregory B.; Srivastava, Chandan; Nikles, David E. (2008-11-21)

  To eliminate compositional and size variabilities between individual binary nanoparticles, it is essential to control the mechanistic steps involved in nanoparticle synthesis. A common method for synthesizing FePt ...
• The FePt L10 Phase Transformation in Thin Films using Multiple Laser Pulsing 

  Inaba, Yuki; Thompson, Gregory B.; Harrell, J. W.; Klemmer, Tim; Kubota, Yukiko (2010-03-04)

  A series of ≈12 nm thick FePt thin films deposited onto glass substrates have been annealed with multiple 1064 nm wavelength laser pulses. The fluence was varied using pulse widths of 10.0, 5.0, and 2.5 ms. The peak ...
• Ti Segregation in Regulating the Stress and Microstructure Evolution in W-Ti Nanocrystalline Films 

  Thompson, Gregory B.; Kaub, Tyler (2017-08-22)

  This paper explores the effect of Ti's segregation and corresponding effect on the intrinsic thin film growth stress and microstructural evolution in a series of W1-x(Ti)x alloys where x is varied from 0 to 20 at. %. We ...
• Time-Temperature-Transformation Measurements of FePt Thin Films in the Millisecond Regime Using Pulse Laser Processing 

  Inaba, Yuki; Zana, Iulica; Swartz, Caleb; Kubota, Yukiko; Klemmer, Tim; Harrell, J. W.; Thompson, Gregory B. (2010-11-19)

  A section of the time-temperature-transformation TTT curve has been measured in the millisecond regime to describe the A1 to L10 transformation of 10 nm FePt thin films. Short time annealing was accomplished using a ...
• Local charge writing in epitaxial SmNiO3 thin films 

  Yan, Feng; Schoofs, Frank; Shi, Jian; Ha, Sieu D.; Jaramillo, R.; Ramanathan, Shriram (2014-02-28)

  We have investigated the evolution of work function in epitaxial correlated perovskite SmNiO3 (SNO) thin film spanning the metal-insulator transition (MIT) by Kelvin probe force microscopy (KPFM). Combining contact-mode ...
• Magnetic, ferroelectric, and dielectric properties of Bi(Sc0.5Fe0.5)O3–PbTiO3 thin films 

  Yan, F.; Sterianou, I.; Miao, S.; Reaney, I. M.; Lai, M. O.; Lu, L. (2009-04-01)

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