Matthew J. Kramer

Scientist II
Address
225 Wilhelm Hall
The Ames Laboratory
Ames, IA 50011-3020
Phone 515-294-0276
Fax 515-294-4291
Email mjkramer@ameslab.gov

Research Interests

  • Materials properties of glass forming metallic alloys
  • Quasicrystals
  • High temperature intermetallics
  • High temperature superconductors
  • Ceramics and silicates with emphasis on electron microscopy and x-ray diffraction
  • Utilizing new characterization techniques to investigate the dynamics of phase transformations
  • Computer modeling of physical systems

        Project Affiliations:

(Chronologically most recent on top)Education

  • Ph.D. Iowa State University, 1998
  • M.S. University of Rochester, 1983
  • B.S. University of Rochester, 1979

(Chronologically most recent on top)Professional Appointments

  • 2001 - present Group Leader, Materials Characterization/Metal & Ceramic Sciences Program
  • 1996 - present Scientist, Metallurgy and Ceramics Division, Ames Laboratory
  • 1989 - 1995 Associate Scientist, Metallurgy and Ceramics Division, Ames Laboratory

(Chronologically most recent on top)Honors & Awards

  • 1998 Co-recipient of the Materials Chemistry Outstanding Scientific Accomplishment Award for “Surface Properties of Quasicrystals”
  • 1997 Co-recipient of R & D 100, Nanocrystalline Composite Coercive Magnet Powders
  • 1996 Co-recipient of the Department of Energy Materials Science Award for Significant Implication for DOE Related Technologies in Metallurgy and Ceramics
  • 1995 Co-recipient of the Department of Energy Materials Science Award for Sustained Outstanding Research in Solid State Physics

(Chronologically most recent on top)Publications with the Ames Laboratory

2007
Rong C B; Poudyal N; Chaubey G S; Nandwana V; Skomski R; Wu Y Q; Kramer M J; Liu J P . 2007. Structural phase transition and ferromagnetism in monodisperse 3 nm FePt particles. Journal of Applied Physics. 102:043913. abstract
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Mendelev M I; Sordelet D J; Kramer M J . 2007. Using atomistic computer simulations to analyze x-ray diffraction data from metallic glasses. Journal of Applied Physics. 102:043501. abstract
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Yang N; Dennis K W; McCallum R W; Kramer M J; Zhang Y; Lee P L . 2007. Critical bond lengths and their role in spontaneous magnetostriction of R2Fe17CX(R = Y, Nd, Gd, Tb, Er). Journal of Magnetism and Magnetic Materials. 311:630-638. abstract
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Kai-Ming Ho

None
Address
A502 Zaffarano Hall
Iowa State University
Ames, IA 50011
Phone 515-294-1960
Fax 515-294-0689
Email kmh@ameslab.gov

Research Interests

  • Total energy calculations and molecular dynamical simulations of condensed matter systems, esp. clusters and surfaces
  • Multiscale simulation
  • Photonic crystals
  • Genetic algorithm for geometry optimization
  • Protein structure and dynamics

        Project Affiliations:
        Photonic Systems

(Chronologically most recent on top)Education

  • Ph.D. Physics, University of California, Berkeley, 1978
  • B.Sc(Sp) University of Hong Kong, 1973

(Chronologically most recent on top)Professional Appointments

  • 1988 - present Senior Scientist, Ames Lab
  • 1988 - present Professor, Iowa State University
  • 1987 - 1989 Head, Theory Group, Microelectronics Research Center, Iowa State University
  • 1985 - 1988 Physicist, Ames Lab
  • 1985 - 1988 Associate Professor, Iowa State University
  • 1982 - 1985 Assistant Professor, Iowa State University
  • 1984, 1988 Visiting Scientist, Kernforschungszentrum Karlsruhe, Karlsruhe, Germany
  • 1980 - 1985 Associate Physicist, Ames Lab
  • 1978 - 1980 Postdoctoral fellow, Ames Lab

(Chronologically most recent on top)Honors & Awards

  • 2001 Energy 100 Award (USDOE)
  • 2001 Science 100 Award (USDOE)
  • 1997 - present Distinguished Professor in Liberal Arts and Sciences, Iowa State University
  • 1996 Sustained Outstanding Research in Solid State Physics (DOE Materials Science Division)
  • 1996 Sustained Outstanding Research in Solid State Physics (DOE Materials Science Division)
  • 1995 - present Fellow, American Physical Society
  • 1992 Outstanding Scientific Accomplishments in Solid State Physics (DOE Materials Science Division)

(Chronologically most recent on top)Publications with the Ames Laboratory

2007
Oh C H; Hwang U J; Kim J S; Kim Y S; Lee J H; Kim C H; Ho K M . 2007. Analysis of surface relief gratings on Azo polymer films. Journal of the Korean Physical Society. 50:1022-1026. abstract
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Lee J H; Leung W; Ahn J; Lee T; Park I S; Constant K; Ho K M . 2007. Layer-by-layer photonic crystal fabricated by low-temperature atomic layer deposition. Applied Physics Letters. 90:151101. abstract
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Hu X H; Cao J R; Li M; Ye Z; Miyawaki M; Ho K M; Weiss S M; Subramania G S; GarciaSantamaria F . 2007. Gain-scattering-matrix method for photonic crystal laser simulations - art. no. 66400I. Active Photonic Crystals. 6640:I6400-I6400. abstract
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Bruce Harmon

Scientist, Ames Laboratory and Distinguished Professor, Iowa State University
Address
A520 Zaffarano Hall
Iowa State University
Ames, IA 50011
Phone 515-294-7712
Fax 515-294-0689
Email harmon@ameslab.gov

Research Interests

First principles calculations to study magnetism, electronic structure, lattice dynamics, superconductivity, optics, and just about everything else, particularly magnetic molecules and spin Hamiltonians; strong interactions and frequent collaboration with experimental groups, recently emphasizing magnetic x-ray scattering, and high resolution angle resolved photoemission.


        Project Affiliations:

(Chronologically most recent on top)Education

  • Ph.D. Northwestern University, 1973
  • B.S. Illinois Institute of Technology, 1968

(Chronologically most recent on top)Professional Appointments

  • 1996 - present Director, Center for Physical and Computational Mathematics, IPRT/ISU
  • 1996 - 1998 Program Director, Applied Mathematics, Ames Laboratory
  • 1995 - present Deputy Director, Ames Laboratory
  • 1994 - present Distinguished Professor, Department of Physics and Astronomy, Iowa State University
  • 1983 - 2008 Program Director, Condensed Matter Physics, Ames Laboratory
  • 1982 - 1994 Professor, Department of Physics and Astronomy, Iowa State University
  • 1978 - 1982 Associate Professor, Department of Physics and Astronomy, Iowa State University
  • 1975 - 1978 Assistant Professor, Department of Physics and Astronomy, Iowa State University

(Chronologically most recent on top)Honors & Awards

  • 2008 Named one of the inaugural “Outstanding Referees” by the APS
  • 1995 DOE Outstanding Research Award for Solid State Physics
  • 1994 Fellow, American Physical Society (APS)

(Chronologically most recent on top)Publications with the Ames Laboratory

2007
Paudyal D; Pecharsky V K; Gschneidner K A; Harmon B N . 2007. Magnetism of Gd5Ge4 from first principles. Physical Review B. 75:094427. abstract
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Haskel D; Lee Y B; Harmon B N; Islam Z; Lang J C; Srajer G; Mudryk Y; Gschneidner K A; Pecharsky V K . 2007. Role of Ge in bridging ferromagnetism in the giant magnetocaloric Gd-5(Ge1-xSix)(4) alloys. Physical Review Letters. 98:247205. abstract
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Boukhvalov D W; Al-Saqer M; Kurmaev E Z; Moewes A; Galakhov V R; Finkelstein L D; Chiuzbaian S; Neumann M; Dobrovitski V V; Katsnelson M I; Lichtenstein A I; Harmon B N; Endo K; North J M; Dalal N S . 2007. Electronic structure of a Mn-12 molecular magnet: Theory and experiment. Physical Review B. 75:014419. abstract
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Antonov V N; Harmon B N; Yaresko A N; Shpak A P . 2007. Electronic structure, noncollinear magnetism, and x-ray magnetic circular dichroism in the Mn3ZnC perovskite. Physical Review B. 75:165114. abstract
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Zhang W X; Dobrovitski V V; Santos L F; Viola L; Harmon B N . 2007. Suppression of electron spin decoherence in a quantum dot. Journal of Modern Optics. 54:2629-2640. abstract
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Paul Canfield

Ames Laboratory Associate and Distinguished Professor, Iowa State University
Address
59 Physics Hall
Iowa State University
Ames, IA 50011
Phone 515-294-6270
Email canfield@ameslab.gov

Research Interests

Design, discovery, growth and characterization of new and exotic materials with electronic and/or magnetic phase transitions are the primary focus of my research group. Compounds are usually prepared in single crystal form, so the measurement of the anisotropic, temperature and applied magnetic field dependent magnetization, specific heat, electrical resistivity, and thermoelectric power are our primary characterization measurements.


        Project Affiliations:

        Group Website:

(Chronologically most recent on top)Education

  • Ph.D. Physics, University of California at Los Angeles, 1990
  • B.S. Physics, University of Virginia, Graduated Summa Cum Laude, 1983

(Chronologically most recent on top)Professional Appointments

  • 2006 - present Distinguished Professor, Department of Physics and Astronomy, Iowa State University
  • 2001 - present Senior Physicist, Ames Laboratory
  • 2001 - 2006 Full Professor, Department of Physics and Astronomy, Iowa State University
  • 1999 - 2000 Faculty Improvement Leave in Grenoble, France as Researcher in C.E.A. and Adjunct Professor in University of Grenoble
  • 1998 - 2001 Associate Professor (Tenured), Department of Physics and Astronomy, Iowa State University
  • 1996 - 1998 Assistant Professor (Tenure Track), Department of Physics and Astronomy, Iowa State University
  • 1995 - 2001 Physicist, Ames Laboratory
  • 1994 - 1996 Adjunct Research Assistant Professor, Department of Physics and Astronomy, Iowa State University
  • 1993 - 1995 Associate Physicist, Ames Laboratory
  • 1990 - 1993 Postdoctoral research, Los Alamos National Laboratory

(Chronologically most recent on top)Honors & Awards

  • 2012 Lawrence Award
  • 2009 Robert Allen Wright Professorship (Endowed Chair of Physics)
  • 2006 Distinguished Professor
  • 2005 Mid-Career Achievement Award
  • 2001 Master Teacher Award
  • 2001 APS Fellow
  • 1998 Award for Early Excellence in Research
  • 1995 DOE Outstanding Scientific Accomplishment Award for Solid State Physics

(Chronologically most recent on top)Publications with the Ames Laboratory

2007
Doyle B P; Carleschi E; Magnano E; Malvestuto M; Dee A A; Wills A S; Janssen Y; Canfield P C . 2007. Temperature-independent ytterbium valence in YbGaGe. Physical Review B. 75:235109. abstract
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Simon F; Muranyi F; Feher T; Janossy A; Forro L; Petrovic C; Bud'ko S L; Canfield P C . 2007. Spin-lattice relaxation time of conduction electrons in MgB2. Physical Review B. 76:024519. abstract
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Prozorov R; Vannette M D; Samolyuk G D; Law S A; Bud'ko S L; Canfield P C . 2007. Contactless measurements of Shubnikov-de Haas oscillations in the magnetically ordered state of CeAgSb2 and SmAgSb2 single crystals. Physical Review B. 75:014413. abstract
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Bonville P; Rams M; Krolas K; Sanchez J P; Canfield P C; Trovarelli O; Geibel C . 2007. Magnetic structures and crystal field in the heavy electron materials YbAgGe and YbPtIn. European Physical Journal B. 55:77-84. abstract
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Torikachvili M S; Bud'ko S L; Law S A; Tillman M E; Mun E D; Canfield P C . 2007. Hydrostatic pressure study of pure and doped La1-xRxAgSb2 (R=Ce,Nd) charge-density-wave compounds. Physical Review B. 76:235110. abstract
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Dolinsek J; McGuiness P J; Klanjsek M; Smiljanic I; Smontara A; Zijlstra E S; Bose S K; Fisher I R; Kramer M J; Canfield P C . 2007. Reply to "Comment on 'Extrinsic origin of the insulating behavior of polygrain icosahedral Al-Pd-Re quasicrystals'". Physical Review B. 76:216202. abstract
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Janssen Y; Chang S; Kreyssig A; Kracher A; Mozharivskyj Y; Misra S; Canfield P C . 2007. Magnetic phase diagram of Ce2Fe17. Physical Review B. 76:054420. abstract
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Szabo P; Samuely P; Pribulova Z; Angst M; Bud'ko S; Canfield P C; Marcus J . 2007. Point-contact spectroscopy of Al- and C-doped MgB2: Superconducting energy gaps and scattering studies. Physical Review B. 75:144507. abstract
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Prozorov T; Mallapragada S K; Narasimhan B; Wang L J; Palo P; Nilsen-Hamilton M; Williams T J; Bazylinski D A; Prozorov R; Canfield P C . 2007. Protein-mediated synthesis of uniform superparamagnetic magnetite nanocrystals. Advanced Functional Materials. 17:951-957. abstract
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Rana Biswas

Scientist I
Address
A506 Zaffarano Hall
Iowa State University
Ames, IA 50011
Phone 515-294-6987
Fax 515-294-0689
Email biswasr@ameslab.gov

Research Interests

  • Molecular dynamics and electronic properties of semiconductor materials
  • Structure and light-induced properties of thin film silicon materials for photovoltaic applications
  • Quantum dots for solar energy conversion
  • Design of photonic band gap crystals with electromagnetic simulations
  • Light management in solar cell structures
  • Sharp infrared emitters using photonic crystals
  • Development of novel sensors using plasmonic crystals
  • Novel applications of photonic band gap materials and non-linear effects

        Project Affiliations:
        Photonic Systems

(Chronologically most recent on top)Education

  • Ph.D. Physics, Cornell University, 1984
  • M.S. Physics, Cornell University, 1982
  • M.Sc Physics, Indian Institute of Technology, Bombay, 1978
  • B.S. Physics/Math, Bombay University, 1976

(Chronologically most recent on top)Professional Appointments

  • 2004 - present Adjunct Associate Professor, Dept. of Electrical Engineering, Iowa State University
  • 1998 - present Scientist, Ames Laboratory and Microelectronics Research Center
  • 1993 - present Adjunct Associate Professor, Dept. of Physics & Astronomy, Iowa State University
  • 1989 - 1998 Associate Scientist, Ames Laboratory and Microelectronics Research Center
  • 1986 - 1988 Consultant, Exxon Research, NJ
  • 1984 - 1986 Postdoctoral Member of Technical Staff, AT&T Bell Laboratories, NJ

(Chronologically most recent on top)Honors & Awards

  • 2009 Fellow, American Physical Society For theoretical contributions to the dynamics of semiconductors, solar materials, and photonic crystals
  • 2008 Ames Laboratory Insider “Filtering out the noise” News Release
  • 2006 Materials Research Lecturer, California Institute of Technology

(Chronologically most recent on top)Publications with the Ames Laboratory

2010
Biswas R; Zhou D Y . 2010. Simulation and modelling of photonic and plasmonic crystal back reflectors for efficient light trapping. Physica Status Solidi a-Applications and Materials Science. 207:667-670. abstract
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2009
Curtin B; Biswas R; Dalal V . 2009. Photonic crystal based back reflectors for light management and enhanced absorption in amorphous silicon solar cells. Applied Physics Letters. 95:231102. abstract
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Stieler D; Barsic A; Biswas R; Tuttle G; Ho K M . 2009. A planar four-port channel drop filter in the three-dimensional woodpile photonic crystal. Optics Express. 17:6128-6133. abstract
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2008
Zhou D Y; Biswas R . 2008. Photonic crystal enhanced light-trapping in thin film solar cells. Journal of Applied Physics. 103:093102. abstract
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Sigalas M M; Biswas R . 2008. Slot defect in three-dimensional photonic crystals. Physical Review B. 78:033101. abstract
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Biswas R; Zhou D; Puscasu I; Johnson E; Taylor A; Zhao W . 2008. Sharp thermal emission and absorption from conformally coated metallic photonic crystal with triangular lattice. Applied Physics Letters. 93:063307. abstract
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Biswas R; Christensen C; Muehlmeier J; Tuttle G; Ho K M . 2008. Waveguide circuits in three-dimensional photonic crystals. Photonics and Nanostructures-Fundamentals and Applications. 6:134-141. abstract
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Biswas R; Han Y Y; Karra P; Sherman P; Chandra A . 2008. Diffusion-limited agglomeration and defect generation during chemical mechanical planarization. Journal of the Electrochemical Society. 155:D534-D537. abstract
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2007
Biswas R; Neginhal S; Ding C G; Puscasu I; Johnson E . 2007. Mechanisms underlying extraordinary transmission enhancement in subwavelength hole arrays. Journal of the Optical Society of America B-Optical Physics. 24:2589-2596. abstract
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Biswas R; Pan B; Wagner S; Chu V; Atwater H A; Yamamoto K; Zan H W . 2007. Simulation of realistic core-shell silicon nanowires. Amorphous and Polycrystalline Thin-Film Silicon Science and Technology 2006. 910:15-20. abstract
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Mufit Akinc

Ames Laboratory Associate and Professor, Iowa State University
Address
2220C Hoover Hall
Iowa State University
Ames, IA 50011
Phone 515-294-0738
Fax 515-294-5444
Email makinc@iastate.edu

Research Interests

Design and processing of bioceramics and hybrid materials, synthesis and processing of ceramic powders, solid-liquid, solid-gas interfaces in materials systems, processing of high temperature materials.


        Project Affiliations:
        Bioinspired Materials

(Chronologically most recent on top)Education

  • Post-doc Materials Sciences, Argonne National Laboratory, 1977
  • Ph.D. Ceramic Engineering, Iowa State University, 1977
  • M.S. Chemistry, Middle East Technical University, Ankara, Turkey, 1973
  • B.S. Chemistry, Middle East Technical University, Ankara, Turkey, 1970

(Chronologically most recent on top)Honors & Awards

  • 2010 Fellow, American Association for the Advancement of Science
  • 2009 International Service Award, Iowa State University
  • 2008 Fulbright Scholar, Fulbright Lectureship Award
  • 2008 - 2011 Member, Board of Trustees, ASM International
  • 2008 Fellow, ASM International
  • 2006 Ross Coffin Purdy Award, American Ceramic Society
  • 2006 - 2010 International Advisor, National Institute of Materials Science of Japan
  • 2002 - 2004 Member, Executive Council, University Materials Council
  • 2003 Member, European Academy of Sciences
  • 2001 Faculty Citation, Iowa State University
  • 1996 Fellow, American Ceramic Society
  • 1992 - 1993 Liaison Scientist for Materials, ONR European Office

(Chronologically most recent on top)Publications with the Ames Laboratory

2007
Enlow D; Rawal A; Kanapathipillai M; Schmidt-Rohr K; Mallapragada S; Lo C T; Thiyagarajan P; Akinc M . 2007. Synthesis and characterization of self-assembled block copolymer templated calcium phosphate nanocomposite gels. Journal of Materials Chemistry. 17:1570-1578. abstract
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