Muhammad Usman

Journals (11)

  • 40[J302] - [J_2018_3]

    Archana Tankasala, Joe Salfi, Juanita​ Bocquel, Benoit Voisin, Muhammad Usman, Gerhard Klimeck, Michelle Simmons, Lloyd Hollenberg, Sven Rogge, Rajib Rahman,
    "Two-electron states of a group V donor in silicon from atomistic full configuration interaction"
    Phys. Rev. B 97, 195301 – Published 2 May 2018;doi: 10.1103/PhysRevB.97.1953012018

    0

    0

  • 39[J264] - [J_2016_8]

    Muhammad Usman, Juanita​ Bocquel, Joe Salfi, Benoit Voisin, Archana Tankasala, Rajib Rahman, Michelle Simmons, Sven Rogge, Lloyd Hollenberg,
    "Spatial Metrology of Dopants in Silicon with Exact Lattice Site Precision"
    Nature Nanotechnology 11, 763–768 (2016);doi:10.1038/nnano.2016.832016

    0

    0

  • 38[J244] - [J_2015_12]

    Muhammad Usman, C. Hill, Rajib Rahman, Gerhard Klimeck, Michelle Simmons, Sven Rogge, Lloyd Hollenberg,
    "Strain and electric field control of hyperfine interactions for donor spin qubits in silicon"
    PHYSICAL REVIEW B 91, 245209 (2015), Published 25 June 2015;doi:10.1103/PhysRevB.91.2452092015

    0

    1

  • 37[J243] - [J_2015_11]

    Muhammad Usman, Rajib Rahman, Joe Salfi, Juanita​ Bocquel, Benoit Voisin, Sven Rogge, Gerhard Klimeck, Lloyd Hollenberg,
    "Donor hyperfine Stark shift and the role of central-cell corrections in tight-binding theory"
    Journal of Physics: Condensed Matter, 27 (2015) 154207 (7pp);doi:10.1088/0953-8984/27/15/1542072015

    0

    3

  • 36[J180] - [J_2012_07]

    Muhammad Usman, Vittorianna Tasco, Maria Todaro, Milena Giorgi, Eoin OReilly, Gerhard Klimeck, Adriana Passaseo,
    "The polarization response in InAs quantum dots: theoretical correlation between composition and electronic properties"
    IOP Nanotechnology, Volume 23, Number 16, Published 2 April 2012;doi:10.1088/0957-4484/23/16/1652022012

    0

    13

  • 35[J146] - [J_2011_5]

    Muhammad Usman, Susannah Heck, Edmund Clarke, Peter Spencer, Hoon Ryu, Ray Murray, Gerhard Klimeck,
    "Experimental and Theoretical Study of Polarization-Dependent Optical Transitions in InAs Quantum Dots at Telecommunication-Wavelengths (1300-1500 nm)"
    Journal of Applied Physics 83 19 pags 104510, 26 May 2011 ;doi:10.1063/1.35871672011

    63

    21

  • 34[J165] - [J_2011_20]

    Muhammad Usman, Tomoya Inoue, Yukihiro Harda, Gerhard Klimeck, Takashi Kita,
    "Experimental and atomistic theoretical study of degree of polarization from multilayer InAs/GaAs quantum dot stacks"
    Physical Review B 84, 115321, published September 23, 2011;doi: 10.1103/PhysRevB.84.1153212011

    15

    30

  • 33[J156] - [J_2011_14]

    Muhammad Usman, Yui-Hong Tan, Hoon Ryu, Shaikh Ahmed, Timothy Boykin, Gerhard Klimeck, Hubert Krenner,
    "Quantitative Excited State Spectroscopy of a Single InGaAs Quantum Dot Molecule through Multi-million Atom Electronic Structure Calculations"
    Nanotechnology 22 (2011) 315709 (14pp);doi:10.1088/0957-4484/22/31/3157092011

    26

    18

  • 32[J114] - [J_2009_14]

    Muhammad Usman, Hoon Ryu, David Ebert, Gerhard Klimeck,
    "Moving towards nano-TCAD through multi-million atom quantum dot simulations matching experimental data"
    IEEE Transactions on Nanotechnology, Vol. 8, Issue: 3, Page(s): 330 - 344, May 2009;doi : 10.1109/TNANO.2008.20119002009

    21

    30

  • 31[J104] - [J_2008_14]

    Shaikh Ahmed, Neerav Kharche, Rajib Rahman, Muhammad Usman, Sunhee Lee, Hoon Ryu, Hansang Bae, Steven Clark, Benjamin Haley, Maxim Naumov, Faisal Saied, Marek Korkusinski, Rick Kennel, Michael McLennan, Timothy Boykin, Gerhard Klimeck,
    "Multimillion Atom Simulations with NEMO 3-D"
    Springer Encyclopedia for Complexity, pp 5745-5783, 2008, Published 2009;doi:10.1007/978-0-387-30440-3_3432008

    130

    10

  • 30[J86] - [J_2007_13]

    Gerhard Klimeck, Shaikh Ahmed, Neerav Kharche, Marek Korkusinski, Muhammad Usman, Martha Prada, Timothy Boykin,
    "Atomistic Simulation of Realistically Sized Nanodevices Using NEMO 3-D: Part II - Applications"
    IEEE Transactions on Electron Devices, Vol. 54, Issue 9, Page(s):2090 - 2099, Sept. 2007, (INVITED) Special Issue on Nanoelectronic Device Modeling;doi : 10.1109/TED.2007.9048772007

    236

    83

Proceedings (6)

  • 29[P113] - [P_2009_3]

    Muhammad Usman, Hoon Ryu, Gerhard Klimeck,
    "Quantum Confined Stark Shift and Ground State Optical Transition Rate in [100] Laterally Biased InAs/GaAs Quantum Dots"
    to appear in IEEE proceedings of the 13th International Workshop on Computational Electronics, Tsinghua University, Beijing, May 27-29 2009.Page(s):1-4;doi:10.1109/IWCE.2009.50911402009

    275

    3

  • 28[P98] - [P_2008_9]

    Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck,
    "Atomistic tight binding study of strain-reduced confinement potentials in identical and non-identical InAs/GaAs vertically stacked quantum dots"
    8th IEEE Conference on Nanotechnology, 2008. NANO '08. Aug. 18-21 2008 Page(s):541-544;doi : 10.1109/NANO.2008.1612008

    0

    3

  • 27[P93] - [P_2008_4]

    Muhammad Usman, Dragica Vasileska, Gerhard Klimeck,
    "Strain-Engineered Self Organized InAs/GaAs Quantum Dots for Long Wavelength (1.3-1.5um) Optical Applications"
    Proceedings of ICPS 2008 (International Conference on the Physics of Semiconductors), Rio de Janeiro, Brazil, July 27-Aug 1, 2008.2008

    0

    0

  • 26[P80] - [P_2007_1]

    Shaikh Ahmed, Muhammad Usman, Neerav Kharche, Andrei Schliwa, Gerhard Klimeck,
    "Atomistic Simulation of Non-Degeneracy and Optical Polarization Anisotropy in Pyramidal Quantum Dots"
    proceedings of IEEE NEMs Jan 16-19, 2007, pgs. 937-942, Bangkok Thailand. oral presentation, 340 submission, 90% acceptance, 55% oral presentations.;doi : 10.1109/NEMS.2007.3521722007

    0

    11

  • 25[P76] - [P_2006_9]

    Shaikh Ahmed, Muhammad Usman, Clemens Heitzinger, Rajib Rahman, Andrei Schliwa, Gerhard Klimeck,
    "Symmetry Breaking and Fine Structure Splitting in Self-Assembled Zincblende Quantum Dots: Atomistic Simulations of Long-Range Strain and Piezoelectric Field"
    proceedings of the 28th International Conference on the Physics of Semiconductors, ICPS 2006, Vienna, Austria, July 24-28 2006, AIP Conference Proceedings Volume 893, pg 849;doi: 10.1063/1.27301572006

    0

    0

  • 24[P75] - [P_2006_8]

    Muhammad Usman, Shaikh Ahmed, Marek Korkusinski, Clemens Heitzinger, Gerhard Klimeck,
    "Strain and electronic structure interactions in realistically scaled quantum dot stacks"
    proceedings of the 28th International Conference on the Physics of Semiconductors, ICPS 2006, Vienna, Austria, July 24-28 2006, AIP Conference Proceedings Volume 893, pg 849.;doi : 10.1063/1.27301562006

    0

    3

Conferences (21)

  • 23[C451] - [C_2015_24]

    Archana Tankasala, Yu Wang, Joe Salfi, Juanita​ Bocquel, Benoit Voisin, Muhammad Usman, Sven Rogge, Michelle Simmons, Lloyd Hollenberg, Rajib Rahman, Gerhard Klimeck,
    "Modeling exchange interaction in bulk and sub-surface donor pairs in silicon for two-qubit gates​"
    Poster Session, ARO Quantum computing program review, San Diego, Aug 10-12, 20152015

    0

    0

  • 22[C450] - [C_2015_23]

    Juanita​ Bocquel, Benoit Voisin, Joe Salfi, Archana Tankasala, Muhammad Usman, Rajib Rahman, Bret Johnson, Jeffrey McCallum, Lloyd Hollenberg, Michelle Simmons, Sven Rogge,
    "Modeling exchange interaction in bulk and sub-surface donor pairs in silicon for two-qubit gates​"
    CQC2T Workshop at Kingscliff, New South Wales (NSW), Australia, February 18 - 20, 20152015

    0

    0

  • 21[C350] - [C_2012_6]

    Muhammad Usman, Yui-Hong Tan, Gerhard Klimeck,
    "Theoretical correlation between quantum dot composition and polarization properties"
    International Conference on quantum Dots DOTS (QD2012), May 13-18 2012, Santa Fe, New Mexico, USA2012

    0

    0

  • 20[C389] - [C_2011_38]

    Muhammad Usman, Susannah Heck, Edmund Clarke, Peter Spencer, Ray Murray, Gerhard Klimeck, Eoin OReilly,
    "Polarization-resolved Optical Transitions from InAs QDs at Telecommunication Wave-lengths"
    Quantum Dot Day Workshop January 10, 2011, University of Bristol, UK2011

    0

    0

  • 19[C284] - [C_2010_8]

    Muhammad Usman, Gerhard Klimeck,
    "Wavelength engineered InAs quantum dots"
    American Physical Society, March Meeting, March 15–19, 2010; Portland, Oregon (2010)2010

    0

    0

  • 18[I120] - [I_2009_1]

    Gerhard Klimeck, Mathieu Luisier, Rajib Rahman, Muhammad Usman, Neerav Kharche, Hoon Ryu, Sunhee Lee, Dragica Vasileska,
    "NEMO 3-D and OMEN: Nanoelectronic modeling tools for advanced semiconductor device studies and their deployment on nanoHUB.org"
    American Chemical Society meeting, Salt Lake City, Utah, 22-26 March 20092009

    0

    0

  • 17[C249] - [C_2009_7]

    Muhammad Usman, Hoon Ryu, Gerhard Klimeck,
    "Quantum Confined Stark Effect in Biased InAs/GaAs Quantum Dots"
    13th International Workshop on Computational Electronics, Tsinghua University, Beijing, May 27-29 2009.2009

    0

    0

  • 16[C245] - [C_2009_3]

    Muhammad Usman, Gerhard Klimeck,
    "Quantum confined stark effect in non-identical InAs/GaAs coupled quantum dots: Dependence on vertical electrical field"
    American Physical Society, March Meeting, March 16-20, Pittsburgh, PA, 2009.2009

    0

    0

  • 15[C243] - [C_2009_1]

    Gerhard Klimeck, Mathieu Luisier, Muhammad Usman, Neerav Kharche, Hoon Ryu, Sunhee Lee, Dragica Vasileska,
    "Nano-Scale Carrier Transport on an atomistic basis using NEMO 3-D and OMEN"
    Aspen Winter Conference on Unifying Themes in Condensed Matter, Jan. 12-16, 2009.2009

    0

    0

  • 14[I114] - [I_2008_9]

    Gerhard Klimeck, Neerav Kharche, Muhammad Usman, Timothy Boykin,
    "Multi-Million Atom Simulations of Strain and Electronic Structure with NEMO 3-D"
    Materials Science and Technology Conference and Exhibition (MS&T), Pittsburgh, October 5-9, 2008.2008

    0

    0

  • 13[C214] - [C_2008_3]

    Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck,
    "Strain and Piezoelectric Effects on the Electronic Structure of Coupled InxGa1-xAs/GaAs Self-Assembled Quantum Dots"
    American Physical Society, March Meeting 2008, March 10-14, 2008.2008

    0

    0

  • 12[C239] - [C_2008_28]

    Gerhard Klimeck, Mathieu Luisier, Muhammad Usman, Neerav Kharche, Hoon Ryu, Sunhee Lee, Dragica Vasileska,
    "Nanoelectronic Modeling using NEMO 3-D and OMEN and their Deployment on nanoHUB.org"
    13th Advanced Heterostructures nad Nanostructures Workshop, Hapuna Beach, Hawaii, Dec. 7-12, 2008.2008

    0

    0

  • 11[C238] - [C_2008_27]

    Hoon Ryu, Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck,
    "Atomistic Tight Binding Study of Interband Light Transitions in Self-assembled InAs/GaAs Quantum Dots"
    MRS Fall Meeting, Boston, Dec. 1-4, 2008.2008

    0

    0

  • 10[C229] - [C_2008_18]

    Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck,
    "Atomistic tight binding study of strain-reduced confinement potentials in identical and non-identical InAs/GaAs vertically stacked quantum dots"
    IEEE nano 2008, Arlington, TX, August 18-21, 2008;doi:10.1109/NANO.2008.1612008

    199

    0

  • 9[C227] - [C_2008_16]

    Muhammad Usman, Dragica Vasileska, Gerhard Klimeck,
    "Strain-Engineered Self Organized InAs/GaAs Quantum Dots for Long Wavelength (1.3-1.5um) Optical Applications"
    Proceedings of ICPS 2008 (International Conference on the Physics of Semiconductors), Rio de Janeiro, Brazil, July 27-Aug 1, 2008 (poster presentation).2008

    14

    0

  • 8[C223] - [C_2008_12]

    Gerhard Klimeck, Neerav Kharche, Muhammad Usman, Mathieu Luisier,
    "Atomistic Simulation of Realistically Sized Nanodevices Using NEMO 3-D and OMEN"
    Nanoelectronics Days, Aachen, Germarny, May 13-16, 2008.2008

    0

    0

  • 7[C183] - [C_2007_1]

    Shaikh Ahmed, Muhammad Usman, Neerav Kharche, Andrei Schliwa, Gerhard Klimeck,
    "Atomistic Simulation of Non-Degeneracy and Optical Polarization Anisotropy in Pyramidal Quantum Dots"
    IEEE International Conference on Nano/Micro Engineered and Molecular Systems (IEEE-NEMS), Jan 16-19, 2007, Bangkok Thailand. oral presentation, 340 submission, 90% acceptance, 55% oral presentations;doi:10.1109/NEMS.2007.3521722007

    0

    0

  • 6[I77] - [I_2006_9]

    Gerhard Klimeck, Shaikh Ahmed, Clemens Heitzinger, Neerav Kharche, Muhammad Usman, Mathieu Luisier, Raseong Kim, Neophytos Neophytou, Michael McLennan, Timothy Boykin,
    "Quantum Dot, Nanowire, ad Bandstructure Modeling and Deployment on nanoHUB.org"
    International Topical Workshop "Tera- and Nano-Devices: Physics and Modeling", University of Aizu, Aizu-Wakamatsu, Japan in October 16-19, 2006.2006

    0

    0

  • 5[C174] - [C_2006_28]

    Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck,
    "Symmetry Breaking and Fine Structure Splitting in Self-Assembled Zincblende Quantum Dots: Atomistic Simulations of Long-Range Strain and Piezoelectric Field"
    28th International Conference on the Physics of Semiconductors, ICPS 2006, Vienna, Austria, July 24-28 2006.2006

    0

    0

  • 4[C173] - [C_2006_27]

    Clemens Heitzinger, Muhammad Usman, Shaikh Ahmed, Gerhard Klimeck, Marek Korkusinski,
    "Strain and electronic structure interactions in realistically scaled quantum dot stacks"
    28th International Conference on the Physics of Semiconductors, ICPS 2006, Vienna, Austria, July 24-28 2006.2006

    0

    0

  • 3[C161] - [C_2006_15]

    Sebastien Goasguen, Jon Camden, Muhammad Usman, Steven Clark, Jaime Frey, Clemens Heitzinger, Gerhard Klimeck,
    "nanoHUB - nanoscience gateway to the TeraGrid"
    Teragrid 2006, Indianapolis, IN June 12-15, 2006.2006

    0

    0

Others (2)

  • 2[B1] - [B_2009_01]

    Shaikh Ahmed, Neerav Kharche, Rajib Rahman, Muhammad Usman, Sunhee Lee, Hoon Ryu, Hansang Bae, Steven Clark, Benjamin Haley, Maxim Naumov, Faisal Saied, Marek Korkusinski, Rick Kennel, Michael McLennan, Timothy Boykin, Gerhard Klimeck,
    "Multimillion Atom Simulations with Nemo3D"
    Part 13 2009

    0

    0

Muhammad Usman's Pages

Biography Group Publications