Recent Presentations

Charge Density in Nanorings from Scanning Force Microscopy, Moshe Gordon, Benjamin Goykadosh, Yonathan Magendzo, Fredy Zypman, Materials Research Society Fall Meeting, Session  Materials and Energy (CH01.21.02) Dec 5, 2023

Magnetic susceptibility measurements from magnetic resonance imaging (MRI), Roman Fleysher, Yonathan Magendzo, Fredy R Zypman, Abstract: SS01.00047, APS March Meeting 2023, Las Vegas, Nevada (March 5-10), Session SS01. (1:30pm-3pm, PST), 1:30 PM, Tuesday, March 21, 2023.

Publications

  1. Permittivity from first principles, Fredy R. Zypman, American Institute of Physics Advances, September 2023, 13 (9): 095003. https://doi.org/10.1063/5.0166346
  2. Micro-thermography for imaging ice crystal growth and nucleation inside non-transparent materials, M Zalazar, F Zypman, R Drori, Rev Sci Instrum (2023) 94 (5): 054903. https://doi.org/10.1063/5.0142245
  3. Charge-Regulated Interactions: The Case of a Nanoparticle and a Sphere of Arbitrary Dielectric Constants, Fredy Zypman, Langmuir (2022) 38 (11), 3561-3567, DOI: 10.1021/acs.langmuir.2c00141
  4. Quantum flexoelectric nanobending, Fredy Zypman, Journal of Applied Physics 129, 194305 (2021)
  5. Surface gravity of rotating dumbbell shapes, Wai-Ting Lam, Marian Gidea, Fredy Zypman, Astrophysics and Space Science 366, 28 (2021). https://doi.org/10.1007/s10509-021-03934-6
  6. Charge Calibration Standard for Atomic Force Microscope Tips in Liquids, Li L, Steinmetz NF, Eppell SJ, Zypman FR. Langmuir. 2020 Nov 17;36(45):13621-13632
  7. Method to Quantify Nanoscale Surface Charge in Liquid with Atomic Force Microscopy
    Li, Li; Eppell, Steven J.; Zypman, Fredy R. LANGMUIR   Volume: ‏ 36   Issue: ‏ 15   Pages: ‏ 4123-4134   Published: ‏ APR 21 2020
  8. Euler-Bernoulli theory accurately predicts atomic force microscope cantilever shape during non-equilibrium snap-to-contact motion Eppell, Steven J.; Friedenberg, David; Payton, Oliver; Loren Picco, Fredy Zypman
    NANOTECHNOLOGY   Volume: ‏ 31   Issue: ‏ 18     Article Number: 185702   Published: ‏ MAY 1 2020
  9. F.R. Zypman, Mathematical expression for the capacitance of coplanar strips, Journal of Electrostatics 101 (2019) 103371
  10. Y. Eisenberg, F.R. Zypman, Ring of Charge Probed With Atomic Force Microscopy Dielectric Tip, Journal of Electrostatics 97C (2019) 95-100
  11. Zypman, F.R. (2018) Nanoparticle Charge in Fluid from Atomic Force Microscopy Forces within the Nonlinear Poisson-Boltzmann Equation. Journal of Applied Mathematics and Physics, 6, 1315-1323. https://doi.org/10.4236/jamp.2018.66110
  12. F.R. Zypman, The Tlönian Cone, Borges Languaje and Reality, pages 103-111, Literatures of the Americas, Palgrave-Macmillan (2018)
  13. D. Lazarev, F.R.Zypman, Charge and size of a ring in an electrolyte with atomic force microscopy, Journal of Electrostatics, Volume 87, June 2017, Pages 243-255
  14. Steven J. Eppell,  Matthew Feinstein,  Li Li,   Brandon White, and  Fredy R. Zypman, Signal distortion in atomic force microscopy photodetector, Review of Scientific Instruments 88, 103703 (2017); https://doi.org/10.1063/1.5008833
  15. S. Eppell1, L. Li, F. Zypman, Unexplored territory in the AFM force curve contains nanomechanics information, AIP Advances 7, 105208 (2017); https://doi.org/10.1063/1.5007826 
  16. Lam, W.-T. and Zypman, F.R. (2016) Interaction Energy between an Atomic Force Microscope Tip and a Charged Particle in Electrolyte. Journal of Applied Mathematics and Physics, 4, 1989-1997. http://dx.doi.org/10.4236/jamp.2016.411199
  17. S. Eppell, Y.  Liu and F. Zypman, Accuracy of AFM force distance curves via direct solution of the Euler-Bernoulli equation,  AIP Advances, 6, 035322 (2016), http://dx.doi.org/10.1063/1.4945409
  18. D. Lazarev, F.R.Zypman, Determination of charge and size of rings by atomic force microscopy, Journal of Electrostatics, Volume 83, October 2016, Pages 69-72
  19.  Fredy R. Zypman, Supersymmetric Displaced Number States, Symmetry 2015, 7(2), 1017-1027; doi:10.3390/sym7021017
  20.  P.B. Abel, S.J. Eppell, A.M. Walker, F.R. Zypman, Viscosity of liquids from the transfer function of microcantilevers, Measurement 61, (2015) Pages 67-74, ISSN 0263-2241, http://dx.doi.org/10.1016/j.measurement.2014.10.019
  21. J. Mehlman and F.R. Zypman, Scanning Probe Microscope Force Reconstruction Algorithm via Time-Domain Analysis of Cantilever Bending Motion, J. Adv. Microsc. Res. 9, 268-274 (2014) http://www.ingentaconnect.com/content/asp/jamr/2014/00000009/00000004/art00004?token=00461939da89ea468275c277b42573a674c767734732c747975592f3f3b2cd7966a215
  22.  Paul Creeger, Fredy Zypman, Entropy Content During Nanometric Stick-Slip Motion, Entropy 16 (2014) 3062-3073
  23.  F.R. Zypman, S.J. Eppell, Electrostatic Force Curves in Finite-Size-Ion Electrolytes, Langmuir, 29  (2013) 11908–11914
  24. Mordechai Kornbluth and Fredy Zypman, Uncertainties of coherent states for a generalized supersymmetric annihilation operator, J. Math. Phys. 54 (2013) 012101; http://dx.doi.org/10.1063/1.4772607
  25. Fredy R. Zypman, ELectrostatic Clocks, American Journal of Physics, Volume 80, 36 (2012)
  26. G. Barach, H. Fort, Y. Mehlman and F. Zypman, "Information in the Traveling Salesman Problem," Applied Mathematics, Vol. 3 No. 8, pp. 926-930. doi: 10.4236/am.2012.38138 (2012)
  27. K.E. Jarmusik, S.J. Eppell, D.J. Lacks, F.R. Zypman, Obtaining charge distributions on geometrically generic nanostructures using scanning force microscopy, Langmuir 27, 1803 (2011)
  28. Fredy Zypman, Parametric ergodicity to measure roughness from a single sample, Physica A: Statistical Mechanics and its Applications, 390 (6), 1124, (2011)
  29. Fredy Zypman, Intrinsic dissipation in atomic force microscopy cantilevers, Ultramicroscopy, Volume 111, Issue 8, Pages 1014–1017 (2011)
  30. Fredy Zypman, Handbook of Functions Errata, viXra.org > Mathematical Physics > viXra:1006.0052, 21 June (2010)
  31. H. Fort, M. Kornbluth, F. Zypman, Traveling salesman problem for finite-size cities, Mathematical Structures in Computer Science 20, 1067-1078 (2010)
  32. Fredy Zypman, Promotion of Scanning Tunneling Spectroscopy current on nanotubes by bending, J. Adv. Microsc. Res. 5, 196-199 (2010)
  33. Pablo Fleurquin, Hugo Fort, Mordechai Kornbluth, Roman Sandler, Mordecai Segall and Fredy Zypman Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces, Entropy 12 480-489 (2010)
  34. Fredy Zypman, Internal damping for noncontact atomic force microscopy cantilevers, J. Vac. Sci. Technol. B 28, C4E24 (2010)
  35. Fredy Zypman, Transitional Wigner surmises from the spacing distribution of 4 × 4 matrices, J. Phys. A: Math. Theor. 43 225203 (2010)
  36. Jesuan Betancourt, Fredy Zypman, Francisco Solá, Oscar Resto,Luis Fonseca, The influence of roughness on the mechanical spectroscopy of SiO2 nanorods grown by e-beam irradiation, Superlattices and Microstructures, 45 458-468 (2009)
  37. Fredy R. Zypman, John Ferrante, Analytical algorithm for Equivalent Crystal Theory, Computational Materials Science, 42(4) 659-663 (2008)
  38. Fredy Zypman, Instrument-Dependent Cadherin Monolayer Interactions, Journal of Biological Physics 33(5) 477-483 (2008)
  39. Fredy Zypman, Characterization of nanowires and molecular switches with scanning tunneling microscopy, Ultramicroscopy 108(10) 999-1004 (2008)
  40. A.M. Schilowitz, D.G. Yablon, E. Lansey, F.R. Zypman, Measuring hydrocarbon viscosity with oscillating microcantilevers, Measurement 41(10) 1169-1175 (2008)
  41. Fredy R. Zypman, C. Marc Bastuscheck, Mapping of normal modes by perturbation, Am. J. Phys. 76(6) 533 (2008)
  42. F.R. Zypman , “Instantaneous center of rotation and centrodes: background and new examples”, The International Journal of Mechanical Engineering Education 35 (1) 79-90 (2007)
  43. A.I. Frenkel, L. D. Menard, P. Northrup, J. A. Rodriquez, F. Zypman, D. Glasner, S.-P. Gao, H. Xu, J. C. Yang, R. G. Nuzzo ”Geometry and Charge State of Mixed-Ligand Au13 Nanoclusters”, AIP Conf. Proc. 882, 749-751 (2007)
  44. Marc Bastuscheck, Fredy Zypman, “Electromagnetic cavity to explore disordered systems”, Physica A: Statistical Mechanics and its Applications 386 (2) 633-639 (2007)
  45. F Zypman, Exact expressions for colloidal plane-particle interaction forces and energies with applications to atomic force microscopy”, J Phys Condens Matter 18 (2006) 2795
  46. Eli Lansey, Ari Lapin, Fredy Zypman, “Level statistics in disordered linear networks”, Physica A: Statistical Mechanics and its Applications 386 (2) 655-658
  47. F Zypman, J Ferrante, “Gradient Equivalent Crystal Theory”, J Phys Condens Matter 18 (2006) 6095
  48. J Ferrante, F Zypman, “Generalization of equivalent crystal theory to include angular dependence”, Comp Mater Science 36 (2006) 425
  49. F Zypman, “Scanning Force Microscopy in the classroom”, Forum on Materials Science Education, editors T Finlayson, F Goodchild, M Norton, S Oliver, Mat Res Soc 909 E (2006) Warrendale, PA
  50. S Buldyrev, J Ferrante, F Zypman, “Dry friction avalanches: experiment and theory”, Phys Rev E 74 (2006) 066110
  51. F Zypman, “Off-axis electric field of a ring of charge”, Am J Phys 74 (2006) 295
  52. "SOLVABLE HAMILTONIAN FOR SUPERLATTICE NANOWIRES", F. ZYPMAN, PHYS. REV. B 71, 165313 (2005)
  53. “STM CHARACTERIZATION OF OXIDE/SILICON INTERFACES”, L. NEMZER, F. ZYPMAN, MAT RES SOC 786, 78 (2004)
  54. "SELF-ORGANIZED CRITICALITY IN NANOTRIBOLOGY”, M. ADLER, J. FERRANTE, A. SCHILOWITZ, D. YABLON, F. ZYPMAN, MAT RES SOC 782, 111 (2004)
  55. “GENERALIZATION OF EQUIVALENT CRYSTAL THEORY TO INCLUDE ANGULAR DEPENDENCE”, J. FERRANTE, F. ZYPMAN, NASA TM 212979 (2004)
  56. “FAST ATOMIC FORCE MICROSCOPY”, F. ZYPMAN, ENCYCLOPEDIA OF NANOSCIENCE AND NANOTECHNOLOGY, 3, 307 (2004)
  57. “MACROSCOPIC MODEL OF SCANNING FORCE MICROSCOPY”, C. GUERRA, F. ZYPMAN, PATENT 6799464, OCTOBER 2004
  58. “F ZYPMAN, J FERRANTE, M JANSEN, K SCANLON, P ABEL, “EVIDENCE OF SELF-ORGANIZED CRITICALITY IN DRY SLIDING FRICTION”, J. PHYS. COND. MATT. LETT. 15, 191 (2003)
  59. F ZYPMAN, C GUERRA, “CHARACTERIZATION OF HETEROGENEITY IN CONCRETE AND CEMENT BY MECHANICAL SPECTROSCOPY”, CEMENT AND CONCRETE RESEARCH 33, 241 (2003)
  60. J PIQUERAS, F ZYPMAN, D BONNEL, A SHREVE, “SPATIALLY RESOLVED CHARACTERIZATION OF LOCAL PHENOMENA IN MATERIALS AND NANO STRUCTURES”. M. RES. S., WARRENDALE, PENNSYLVANIA (2003)
  61. J STEIN, F ZYPMAN, “SPECTROSOCPY OF ATOMIC CHAINS WITH TUNNELING MICROSCOPY”, ULTRAMICROSCOPY 97, 7 (2003)
  62. J STEIN, F ZYPMAN, “TUNNELING SPECTROSCOPY OF SHORT ATOMIC CHAINS”, M. RES. SOC. 738, 299 (2003)
  63. "GEOMETRIC RECONSTRUCTION OF TUMORS BY ELECTROMAGNETIC SCATTERING", O COHEN, F ZYPMAN, IEEE (2003)
  64. “Scanning force microscope to determine interaction forces with high frequency cantilever”, Fredy R Zypman, Steven J Eppell, US Patent Number 6,452,170, September 17, 2002
  65. “The poor man’s scanning force microscope”, Claudio Guerra-Vela and Fredy Zypman, European Journal of Physics 23, 145 (2002)
  66. “Electromagnetic waves through disordered systems: comparison of intensity, transmission and conductance”, Gabriel Cwilich and Fredy R. Zypman, MRS 699, 264 (2002)
  67. “Squeezing out hidden force information from scanning force microscopes”, BA Todd, SJ Eppell and Fredy R Zypman, Applied Physics Letters 79, 1888 (2001)
  68. “Density of states on a staircase”, Fredy R Zypman, Am J Phys 69, 1156 (2001)
  69. “Transmittance quantities probability distributions of waves through disordered systems”, Gabriel Cwilich and Fredy R Zypman, in Advances in Materials Theory and Modeling-Bridging over Multiple-Length and Time Scales, ed V Bulatov et al, 677, AA451 (2001)
  70. “STM spectroscopy of polymers”, Fredy R Zypman, Scanning 24, 154 (2002)
  71. “Effects of EM frequency and object morphology on temperature profiles by the extended boundary condition method”, Rafael R Canales, Luis F Fonseca, Fredy R Zypman, Applied Computational Electromagnetics 18, 655 (2002)
  72. “Quantum capacitor at a metal-liquid interface”, Fredy R Zypman, Am J Phys 69, 601 (2001)
  73. “Hidden fractals in light transmission through disordered multilayer photonic systems”, Fredy R Zypman, in Microphotonic- Materials, Physics and Applications, ed.K. Wada, P. Wiltzius, T.F. Krauss, K. Asakawa, E.L. Thomas, 637, E511 (2001)
  74. “Effects of frequency and scatterer’s shape on heat deposition: T-Matrix approach”, Rafael R Canales, Luis F Fonseca, Fredy R Zypman, Applied Computational Electromagnetics 17, 170 (2001)
  75. “The macroscopic scanning force `microscope”, Fredy R Zypman, Claudio Guerra-Vela Eur. J. Phys. 22, 17-30 (2001)
  76. “Improved analysis of the time domain response of scanning force microscope cantilevers”, Brian A. Todd, Steven J. Eppell, Fredy R. Zypman, Journal of Applied Physics 88, 6973-7369 (2000)
  77. “New advances in scanning probe spectroscopy: Theory and applications”, Fredy R Zypman, Recent Res Devel. Vacuum Sci & Tech 2, 149-163 (2000)
  78. “Scanning force microscope with high frequency cantilever”, Fredy R Zypman, Steven J Eppell, US Patent Number 6,145,374, November 14, 2000
  79. "Improved Algorithm to Extract Force-Distance Curves from Scanning Force Microscope Data", Steven J. Eppell, Brian A. Todd, Fredy R. Zypman, in Materials Issues and Modeling for Device Nanofabrication, ed. L. Merhari, et.al., 584, 189 (2000)
  80. “Effect of eccentricity on electric field profiles in ellipsoids”, Rafael R Canales, Luis F Fonseca, Fredy R Zypman, Computing Research 2, 7 (2000) 
  81. “T-Matrix computer code applied to electromagnetic field penetration in Magnetic Resonance Imaging”, Rafael R Canales, Luis F Fonseca, Fredy R Zypman, Applied Computational Electromagnetics 16, 189 (2000)
  82. “Magnetic Resonance Imaging Heat Deposition in Non-uniform Ellipsoidal Objects”, Rafael R Canales, Luis F Fonseca, Fredy R Zypman, Computing Research 1, 71 (1999)
  83. "Surface morphology and chemically active sites on Ru-based ultracapacitors: Montecarlo simulations with Embedded Atom potentials", Lesser Blum, Marc D Legault, Fredy R Zypman, Modeling and Simulation of Microsystems 2, 75 (1999)
  84. “Medidas dieléctricas mediante un analizador de redes escalar”, Fredy R. Zypman, Materia, virtual peer reviewed journal www.notimat.coppe.ufrj.br(1999)
  85. "Quantum Engineering: From Electrons to your Compact Disc", Fredy R Zypman, for general audience, Morris Publishing (1999)
  86. “Penn-UPR Materials Program (PUMP)”, I Ramos, F Zypman, J Santiago, A McGhie, Frontiers in Education 13a9, 1,(1999)
  87. "High Frequency Response of a Scanning Force Microscope Cantilever", Fredy R Zypman, Steven J Eppell, J Vac Sci Technol B16, 2099 (1998)
  88. “Peierls potential for dislocations in FCC metals”, Ariel Moreno-Gobbi, Gustavo Paolini, Fredy R Zypman, Computational Materials Science 11, 145 (1998)
  89. “Electrostatic tip-surface interaction in scanning force microscopy: a convenient expression useful for arbitrary tip and sample geometries”, Fredy R Zypman, Steven J Eppell, J Vac Sci Technol B15, 1853 (1997)
  90. “Electron scattering in STM”, Fredy R Zypman, Luis Fonseca, Phys Rev B55, 15012 (1997)
  91. "Tight-Binding Surface Correction to the Embedded Atom Method Embedding Function", Fredy R Zypman, John Ferrante, J Phys, Condes Matter 7, 9433 (1995).
  92. "MRI Electromagnetic Field Penetration in Cylindrical Objects", Fredy R Zypman, Comput Biol Med 26, 161 (1996).
  93. "Impurity Induced Correction to EAM Embedding Function" Fredy R Zypman, John Ferrante, Physica, Physica A 231, 337 (1996).
  94. “Crystallography”, Fredy R Zypman, in Macmillan Encyclopedia of Physics, John S Ridgen, Editor, New York (1996).
  95. “Energetics of epitaxial monolayers deposited on a (111) surface of an FCC crystal: application to a Cu monolayer on Au(111)”, Fredy R Zypman, Luis F Fonseca, L Blum, Proc Mat Res Soc. 1996
  96. "Time-independent tunneling for a tip-sample system in Scanning Tunneling Microscopy", Fredy R Zypman, Luis F Fonseca, Phys Rev B51, 2501 (1995).
  97. "Theory of Tunneling Spectroscopy", FR Zypman, LF Fonseca, Y Goldstein, Phys Rev B49, 1981 (1994)
  98. "Electrostatic Potential of Impurities in Quantum Wells", FR Zypman, IEEE J Quantum Electronics Letter 29, 2719 (1993).
  99. "First Principles Electrostatic Potential of Impurities in Quantum Wells", FR Zypman, in Condensed Matter Theories 8, 119 (1993).
  100. "Symbolic Programming Helps to Teach Debye-Scherrer Diffraction", FR Zypman, Computers in jics 7, 22 (1993).
  101. "Probing the Resolution Limits and Tip Interactions of AFM in the Study of Globular Proteins", S Eppell, FR Zypman, R Marchant, Langmuir 9, 2281 (1993).
  102. "Disordering in 69GaAs/71GaAs Isotope Superlattice Structures", F Tan, H You, U Gösele W Jäger, D Boeringer, F Zypman, R Tsu, S Lee, J Appl Phys 72, 5206 (1992).
  103. "Disordering and Characterization Studies of 69GaAs/71GaAs Isotope Superlattice Structures: The Effect of Outdiffusion of the Substrate Dopant Si ", F Tan, H You, U Gösele W Jäger, F Zypman, R Tsu, S Lee, Mat Res Soc 19, 873 (1992).
  104. "Moments to Remember-The Conditions for Equating Torque and Rate of Change of Angular Momentum", FR Zypman, Am J Phys 58, 41 (1990).
  105. "New Insights in the Physics of Resonant Tunneling", R Tsu and FR Zypman, Surface Science 228, 418 (1990).
  106. "Optimizing Blood Vessel Contrast in Fast Three-Dimensional MRI", E Haacke, T Masaryk, P Wielopolski, F Zypman, J Tkach, S Amartur, J Mitchell, M Clampitt, C Paschal, Magnetic Resonance in Medicine 14, 202 (1990).
  107. "Effects of Charge Transfer on the Microscopic Theory of Strain-Layer Epitaxy", R Tsu, FR Zypman, RF Greene, Mat Res Soc Symp Proc, 148, 373 (1989).
  108. "A Layer Model for RF Penetration, Heating and Screening in NMR", RW Brown, EM Haacke, MA Martens, JL Patrick, FR Zypman, J Mag Res 80, 225 (1988).
  109. "Supercoherent States", C Aragone, FR Zypman, J of Phys A 90, 2267 (1986)