Malkinski

Leszek Malkinski, Ph.D.

Professor of Physics and Materials Science

Biography
  • M.S., Warsaw University of Technology, Warsaw, Poland, 1984
  • Ph.D., Institute of Physics, Polish Academy of Sciences, Warsaw, Poland, 1991

Contact

Research Specialties
  • Condensed Matter Physics
  • Materials Science - Nanotechnology
  • Thin Film Technology

Lab Personnel
  • Happyson Gavi - PhD Student
  • MD Mahmudul Hasan - PhD Student
  • Atikur Rahman - M.S. Student
  • David Wellmeyer - Undergraduate

Courses
  • PHYS 6501 - Advanced Electrodynamics
  • PHYS 6301 - Advanced Classical Mechanics
  • PHYS 5401 - Quantum Mechanics
  • PHYS 4901 - Condensed Matter and Material Science
  • PHYS 4501/4503 - Electricity and Magnetism
  • PHYS 4901 - Special Topic: Physics of Semiconducting Materials
  • PHYS 4901 - Special Topic: Modern Magnetic Materials and Applications
  • PHYS 4150 - Microprocessor and Scientific Instrumentation
  • PHYS 4160G - Advanced Physics Laboratory
  • PHYS 3301 - Intermediate Mechanics
  • PHYS 1061/1062 Introductory Physics (calculus based)
  • PHYS 1031/1032 Introductory Physics (algebra based)

Prof. Malkinski’s group is conducting diverse research on magnetic, ferroelectric and semiconducting materials and their applications in information technology, spintronics, wireless communications, sensors, nondestructive testing and biotechnology.

 

Current projects:

  • Next generation solar cells based on ferroelectric-semiconductor composites.
  • Self-assembly of complex architectures using micro-origami techniques. Flat thin film patterns with residual stresses tend to fold and roll when released from a substrate be selective etching, and form complex 3-dimensional structure, such as tubes, or cages.
  • Multiferroic composites consisting of piezoelectric and magnetostrictive layers exhibit strong magnetoelectric coupling which can be used to build highly sensitive magnetic sensors or to control ferromagnetic resonance in microwave filters using voltage.
  • Core-shell nanoparticles of piezoelectric and magnetostrictive materials have potential to remotely stimulate functions of voltage-gated ion channels in mammalian cells. These nanoparticles placed alternating magnetic field can produce local electric field in the vicinity of the cell and open or close ion channels. This is collaborative research with Loyola University.
  • Ferronematics – composites of magnetic nanoparticles embedded into liquid crystals. The presence of elongated magnetic nanoparticles allows control of polarization of the liquid crystals with magnetic. This is a collaborative project with the University of Colorado at Colorado Springs.

The main equipment available for these projects is the ultrahigh-vacuum sputtering and evaporation system with in-vacuum analysis tools RHEED, LEED, RGA and Auger Spectroscopy. Thin film patterns are made using Microwriter ML3 in “class 100” cleanroom. Instrumentation in other AMRI laboratories is used for structural characterization and measurements of magnetic, microwave and ferroelectric properties of the materials.

 

Recent Papers

  • R. Eskandari, X, Zhang and L. Malkinski. Polarization-dependent photovoltaic effect in fer-roelectric-semiconductor system, Appl. Phys. Lett. 110, 121105 (2017); doi: 10.1063/1.4978749 (March 2017) L. Malkinski, R. Eskandari, Magnetic Micro-Origami, (book chapter) (2016) Ch.10 in: Magnetic Materials, Ed. by Khan Maaz, ISBN 978-953-51-2428-3, 276 pages, Publisher: InTech, DOI: 10.5772/61497 2
  • K.-H. Choi, K.C. Nam, L. Malkinski, E. H. Choi, J.-S. Jung and B.J. Park, Size-Dependent Photodynamic Anticancer Activity of Biocompatible Multifunctional Magnetic Submicron Particles in Prostate Cancer Cells, Molecules 21 (9) 1187 (2016)
  • Malkinski, M. McGehee, T. Gould, R. Eskandari and A. Chalastaras. Phase Control of Mag-netic Susceptibility of Multiferroic Composites, IEEE Trans. on Magn. 51, (11) 2505503 (2015) A. Kargol and L Malkinski, R. Eskandari, M. Carter and D. Livingston, “Cellular defibrilla-tion: interaction of micro-scale electric fields with voltage-gated ion channels”, J. Biol. Phys. Vol.41. No.3, 1-10 (2015)
  • Economou, E. C.1, Garbovskiy, Yu., Glushchenko, A., Adireddy, S. Wiley, J. B., Malkinski, L. M. and Celinski, Z. Magneto-optical properties of a ferronematic colloid, IEEE Trans, on Magn. Vol. 50 (11) 2802204 Dec 2014 DOI:10.1109/TMAG.2014.2329875
  • A. Ayala, J.D. Alexander, A.U. Kargol, L. Malkinski and A. Kargol, Piezoelectric micro-and manoparticles do not affect growth rates of mammalian cells in vitro, J. Bionanaosci. Vol 8 No 4, 309-314, 2014
  • L. Malkinski, “Magnetics with a twist”, (invited) Magnetics Technology International maga-zine, pp 8-14, 2013
  • S.-G. Min., J. Gaffney, R. Eskandari, J. Tripathy, J.-H. Lim, J. B. Wiley and L. Malkinski, “Novel approach to control diameter of self-rolled magnetic microtubes by anodizing Ti lay-er” Magnetics Letters, 3, 4000304, pp.1-4 (2012)
  • A. Kargol, L. Malkinski and G. Caruntu “Biomedical Applications of Multiferroic Nanoparticles” in “Advanced Magnetic Materials”, (book chapter) Intech 2012 ch.4, pp. 89-118 (28 pages). G. Parkinson, U. Diebold, J. Tang and L. Malkinski,” Tailoring the Interface Properties of Magnetite for Spintronics” in: “Advanced Magnetic Materials” (book chapter) Intech. 2012, ch. 3 pp. 61-88 (22 pages)
  • Yu. Grabovskiy, J.R. Baptist, J. Thompson, T. Hunter, J.H. Lim, S.-G. Min, J. B. Wiley, L. M. Malkinski, A. Glushchenko, and Z. Celinski, “Increasing the switching speed of liquid crystal devices with magnetic nanorods”, Appl. Phys. Lett. 101, 181109 pp. 1-5 (2012)