David Vaknin

Scientist II
Address
A500 Zaffarano Hall
Iowa State University
Ames, IA 50011
Phone 515-294-6023
Fax 515) 294-0689
Email vaknin@ameslab.gov

Research Interests

  • Structure and dynamics in low dimensional magnetic systems
  • Specific and non-specific phenomena at bio-membranes
  • Developments of surface sensitive x-ray methods to investigate thin organic films
  • Soft condensed matter physics
  • Graphite intercalation compounds
  • Neutron and x-ray scattering techniques, ESR, and transport properties

        Project Affiliations:
        Bioinspired Materials

        Group Website:
        Neutron Scattering Group
        
        

(Chronologically most recent on top)Education

  • Ph.D. Physics, Hebrew University of Jerusalem, Israel, 1987
  • M.Sc. Physics, Hebrew University of Jerusalem, Israel, 1981
  • B.Sc. Physics and Mathematics, Hebrew University of Jerusalem, Israel, 1978

(Chronologically most recent on top)Professional Appointments

  • 2004 - present Senior Physicist, Ames Laboratory, Iowa State University
  • 1995 - 2004 Physicist, Ames Laboratory, Iowa State University
  • 1993 Visiting Scientist Physics, Risø National Lab, Denmark
  • 1992 Visiting Scientist Physics, Risø National Lab, Denmark
  • 1991 - 1995 Associate Physicist, Ames Laboratory, Iowa State University
  • 1990 - 1991 Postdoctoral Fellow, Risø National Laboratory, Denmark
  • 1987 - 1989 Postdoctoral Fellow, University of Pennsylvania & Exxon Laboratories

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

2014
Rathnayake S S; Mirheydari M; Schulte A; Gillahan J E; Gentit T; Phillips A N; Okonkwo R K; Burger K N J; Mann E K; Vaknin D; Bu W; Agra-Kooijman D M; Kooijman E E . 2014. Insertion of apoLp-III into a lipid monolayer is more favorable for saturated, more ordered, acyl-chains. Biochimica Et Biophysica Acta-Biomembranes. 1838:482-492. abstract
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2013
Lindemann W R; Xiao T; Wang W J; Berry J E; Anderson N A; Houk R S; Shinar R; Shinar J; Vaknin D . 2013. An X-ray fluorescence study on the segregation of Cs and I in an inverted organic solar cell. Organic Electronics. 14:3190-3194. abstract
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Roy B; Pandey A; Zhang Q; Heitmann T W; Vaknin D; Johnston D C; Furukawa Y . 2013. Experimental evidence of a collinear antiferromagnetic ordering in the frustrated CoAl2O4 spinel. Physical Review B. 88:174415. abstract
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Wang W J; Sung W; Ao M; Anderson N A; Vaknin D; Kim D . 2013. Halide Ions Effects on Surface Excess of Long Chain Ionic Liquids Water Solutions. Journal of Physical Chemistry B. 117:13884-13892. abstract
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Zhang Q; Tian W; Li H F; Kim J W; Yan J Q; McCallum R W; Lograsso T A; Zarestky J L; Bud'ko S L; McQueeney R J; Vaknin D . 2013. Magnetic structures and interplay between rare-earth Ce and Fe magnetism in single-crystal CeFeAsO. Physical Review B. 88:174517. abstract
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Jayasekara W; Lee Y; Pandey A; Tucker G S; Sapkota A; Lamsal J; Calder S; Abernathy D L; Niedziela J L; Harmon B N; Kreyssig A; Vaknin D; Johnston D C; Goldman A I; McQueeney R J . 2013. Stripe Antiferromagnetic Spin Fluctuations in SrCo2As2. Physical Review Letters. 111:157001. abstract
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Zimmermann A S; Sondermann E; Li J Y; Vaknin D; Fiebig M . 2013. Antiferromagnetic order in Li(Ni1-xFex)PO4 (x=0.06, 0.20). Physical Review B. 88:014420. abstract
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Zhang Q; Wang W J; Kim J W; Hansen B; Ni N; Bud'ko S L; Canfield P C; McQueeney R J; Vaknin D . 2013. Magnetoelastic coupling and charge correlation lengths in a twin domain of Ba(Fe1-xCox)(2)As-2 (x=0.047): A high-resolution x-ray diffraction study. Physical Review B. 87:094510. abstract
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Zhang Q; Wang W J; Kim J W; Hansen B; Ni N; Bud'ko S L; Canfield P C; McQueeney R J; Vaknin D . 2013. Magnetoelastic coupling and charge correlation lengths in a twin domain of Ba(Fe1-xCox)(2)As-2 (x=0.047): A high-resolution x-ray diffraction study. Physical Review B. 87:094510. abstract
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Sung W; Vaknin D; Kim D . 2013. Different Adsorption Behavior of Rare Earth and Metallic Ion Complexes on Langmuir Mono layers Probed by Sum-Frequency Generation Spectroscopy. Journal of the Optical Society of Korea. 17:10-15. abstract
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