Recent Submissions

  • Safety and efficacy of megakaryocytes induced from hematopoietic stem cells in murine and nonhuman primate models 

    Guan, Xin; Qin, Meng; Zhang, Yu; Wang, Yanan; Shen, Bin; Ren, Zhihua; Ding, Xinxin; Dai, Wei; Jiang, Yongping (Stem Cells Translational Medicine, 2016)
    Because of a lack of platelet supply and a U.S. Food and Drug Administration-approved platelet growth factor, megakaryocytes have emerged as an effective substitute for alleviating thrombocytopenia. Here, we report the ...
  • Detection of silicide formation in nanoscale visualization of interface electrostatics 

    Nolting, Westly; Durcan, Chris; LaBella, Vincent P. (Applied Physics Letters, 2017)
    The ability to detect localized silicide formation at a buried metal semiconductor Schottky interface is demonstrated via nanoscale measurements of the electrostatic barrier. This is accomplished by mapping the Schottky ...
  • Measurement of periodicity and strain in arrays of single crystal silicon and pseudomorphic Si1-xGex/Si fin structures using x-ray reciprocal space maps 

    Medikonda, Manasa; Muthinti, Gangadhara R.; Fronheiser, Jody; Kamineni, Vimal; Wormington, Matthew; Matney, Kevin; Adam, Thomas N.; Karapetrova, Evguenia; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    Characterization of the periodicity and strain state of an array of lithographically patterned silicon and silicon-germanium alloy on silicon fins using reciprocal space mapping of Bragg diffraction peaks is presented. ...
  • Engineering crystallinity of atomic layer deposited gate stacks containing ultrathin HfO2 and a Ti-based metal gate: Effects of postmetal gate anneal and integration schemes 

    Consiglio, Steven; Tapily, Kandabara; Clark, Robert D.; Hasegawa, Toshio; Amano, Fumitaka; Leusink, Gert J.; Jordan-Sweet, Jean; Vasić, Relja; Medikonda, Manasa; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    In this study, the authors examined the effects of different annealing schemes on crystallinity in atomic layer deposition (ALD) grown Ti-containing metal gates and ultrathin ALD HfO2 high-k dielectric layers, and corresponding ...
  • Optical properties of pseudomorphic Ge1−xSnx (x = 0 to 0.11) alloys on Ge(001) 

    Medikonda, Manasa; Muthinti, Gangadhara R.; Vasić, Relja; Adam, Thomas N.; Reznicek, Alexander; Wormington, Matthew; Malladi, Girish; Kim, Yihwan; Huang, Yi-Chiau; Diebold, Alain C. (Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2014)
    The characterization of the optical properties of pseudomorphic Ge1-xSnx/Ge/Si (x=0 to 0.11) alloys from the IR to UV is presented. The Ge1-xSnx alloys were epitaxially grown on relaxed Ge grown on Si. Rutherford backscattering ...
  • Enhancing one dimensional sensitivity with plasmonic coupling 

    O’Mullane, Samuel; Peterson, Brennan; Race, Joseph; Keller, Nick; Diebold, Alain C. (Optics Express, 2014)
    In this paper, we propose a cross-grating structure to enhance the critical dimension sensitivity of one dimensional nanometer scale metal gratings. Making use of the interaction between slight changes in refractive index ...
  • Enhancing one dimensional sensitivity with plasmonic coupling: Erratum 

    O’Mullane, Samuel; Peterson, Brennan; Race, Joseph; Keller, Nick; Diebold, Alain C. (Optics Express, 2016)
    Our manuscript contained data from unconverged rigorous coupled wave approximation (RCWA) simulations that resulted in incorrect description of minima locations. Here, converged RCWA simulations are presented with corrected ...
  • Metrology for block copolymer directed self-assembly structures using Mueller matrixbased scatterometry 

    Dixit, Dhairya J.; Kamineni, Vimal; Farrell, Richard; Hosler, Erik R.; Preil, Moshe; Race, Joseph; Peterson, Brennan; Diebold, Alain C. (Journal of Micro/Nanolithography, MEMS, and MOEMS, 2015)
    Patterning based on directed self-assembly (DSA) of block copolymer (BCP) has been demonstrated to be a cost-effective manufacturing technique for advanced sub-20-nm structures. This paper describes the application of ...
  • Pulsed-N2 assisted growth of 5-20 nm thick β−W films 

    Narasimham, Avyaya J.; Green, Avery; Matyi, Richard J.; Khare, Prasanna; Vo, Tuan; Diebold, Alain; LaBella, Vincent P. (AIP Advances, 2015)
    A technique to deposit 5-20 nm thick β-phase W using a 2-second periodic pulse of 1 sccm-N2 gas on Si(001) and SiN(5 nm)/Si(001) substrates is reported. Resistivity, X-ray photoelectron spectroscopy and X-ray reflectivity ...
  • Spectral element method for stability analysis of milling processes with discontinuous time-periodicity 

    Lehotzky, David; Insperger, Tamas; Khasawneh, Firas; Stepan, Gabor (International Journal of Advanced Manufacturing Technology, 2017)
    This paper presents an application of the spectral element method for the stability analysis of regenerative machine tool chatter models in milling operations. An extension of the spectral element method is introduced in ...
  • Determining form and data assimilation algorithm for weakly damped and driven Korteweg-de Vries equation - Fourier modes case 

    Jolly, Michael S.; Sadigov, Tural; Titi, Edriss S. (Nonlinear Analysis: Real World Applications, 2017-08)
    We show that the global attractor of a weakly damped and driven Korteweg–de Vries equation (KdV) is embedded in the long-time dynamics of an ordinary differential equation called a determining form. In particular, there ...
  • Tracking quintuple layer oxidation on cleaved Bi2Se3 by optical second-harmonic anisotropy 

    An, Yong Q.; Green, Avery J.; Diebold, Alain C. (Physical Review B, 2016)
    We find that the major and minor intensity lobes of a measured rotational-anisotropy pattern of optical second-harmonic generation (SHG) from a cleaved Bi2Se3 (111) surface can gradually change with time and eventually ...
  • Engineering structurally interacting RNA (sxRNA) 

    Doyle, Francis; Lapsia, Sameer; Spadaro, Salvatore; Wurz, Zachary E.; Bhaduri-McIntosh, Sumita; Tenenbaum, Scott A. (Scientific Reports, 2015)
    RNA-based three-way junctions (3WJs) are naturally occurring structures found in many functional RNA molecules including rRNA, tRNA, snRNA and ribozymes. 3WJs are typically characterized as resulting from an RNA molecule ...
  • Redox control of senescence and age-related disease 

    Chandrasekaran, Akshaya; Idelchik, Maria del Pilar Sosa; Melendez, J. Andrés (Redox Biology, 2017-03)
    The signaling networks that drive the aging process, associated functional deterioration, and pathologies has captured the scientific community's attention for decades. While many theories exist to explain the aging process, ...
  • Geometric algebra and information geometry for quantum computational software 

    Cafaro, Carlo (Physica A: Statistical Mechanics and its Applications, 2017-03-15)
    The art of quantum algorithm design is highly nontrivial. Grover’s search algorithm constitutes a masterpiece of quantum computational software. In this article, we use methods of geometric algebra (GA) and information ...
  • Enhancing Resource Sharing Access through System Integration 

    Pritting, Shannon; Jones III, William; Jackson, Timothy; Mulligan, Michael (Journal of Interlibrary Loan, Document Delivery & Electronic Reserve, 2017-04-12)
    The application and IT ecosystem of academic libraries typically includes multiple systems, with crucial functions requiring using or sharing information between them. However, library systems are often not well integrated, ...
  • Modeling the copper microstructure and elastic anisotropy and studying its impact on reliability in nanoscale interconnects 

    Basavalingappa, Adarsh; Shen, Ming Y.; Lloyd, James R. (Mechanics of Advanced Materials and Modern Processes, 2017)
    Copper is the primary metal used in integrated circuit manufacturing of today. Even though copper is face centered cubic it has significant mechanical anisotropy depending on the crystallographic orientations. Copper metal ...
  • Surface oxidation of the topological insulator Bi2Se3 

    Green, Avery J.; Dey, Sonal; An, Yong Q.; O'Brien, Brendan; O'Mullane, Samuel; Thiel, Bradley; Diebold, Alain C. (Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2016)
    An understanding of the aging and oxidation of the (0001) surface of Bi2Se3 is critical to a comprehensive physical picture of its topologically protected surface states. Here, the authors contribute new experimental ...
  • Modeling ellipsometric measurement of three-dimensional structures with rigorous coupled wave analysis and finite element method simulations 

    O’Mullane, Samuel; Keller, Nick; Diebold, Alain C. (Journal of Micro/Nanolithography, MEMS and MOEMS, 2016)
    Using rigorous coupled wave analysis (RCWA) and finite element method (FEM) simulations together, many interesting ellipsometric measurements can be investigated. This work specifically focuses on simulating copper grating ...
  • Role of Ge and Si substrates in higher-k tetragonal phase formation and interfacial properties in cyclical atomic layer deposition-anneal Hf1-xZrxO2/Al2O3 thin film stacks 

    Dey, Sonal; Tapily, Kandabara; Consiglio, Steven; Clark, Robert D.; Wajda, Cory S.; Leusink, Gert J.; Woll, Arthur R.; Diebold, Alain C. (Journal of Applied Physics, 2016)
    Using a five-step atomic layer deposition (ALD)-anneal (DADA) process, with 20 ALD cycles of metalorganic precursors followed by 40 s of rapid thermal annealing at 1073 K, we have developed highly crystalline Hf1-xZrxO2 ...

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