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

2009
Zimmermann A S; Van Aken B B; Schmid H; Rivera J P; Li J; Vaknin D; Fiebig M . 2009. Anisotropy of antiferromagnetic 180A degrees domains in magnetoelectric LiMPO4 (M = Fe, Co, Ni). European Physical Journal B. 71:355-360. abstract
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Seok S; Kim T J; Hwang S Y; Kim Y D; Vaknin D; Kim D . 2009. Imaging of Collapsed Fatty Acid Films at Air-Water Interfaces. Langmuir. 25:9262-9269. abstract
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Li H F; Tian W; Zarestky J L; Kreyssig A; Ni N; Bud'ko S L; Canfield P C; Goldman A I; McQueeney R J; Vaknin D . 2009. Magnetic and lattice coupling in single-crystal SrFe2As2: A neutron scattering study. Physical Review B. 80:054407. abstract
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Li J Y; Jensen T B S; Andersen N H; Zarestky J L; McCallum R W; Chung J H; Lynn J W; Vaknin D . 2009. Tweaking the spin-wave dispersion and suppressing the incommensurate phase in LiNiPO4 by iron substitution. Physical Review B. 79:174435. abstract
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Bu W; Vaknin D . 2009. X-ray fluorescence spectroscopy from ions at charged vapor/water interfaces. Journal of Applied Physics. 105:084911. abstract
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Li J Y; Tian W; Chen Y; Zarestky J L; Lynn J W; Vaknin D . 2009. Antiferromagnetism in the magnetoelectric effect single crystal LiMnPO4. Physical Review B. 79:144410. abstract
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Kooijman E E; Vaknin D; Bu W; Joshi L; Kang S W; Gericke A; Mann E K; Kumar S . 2009. Structure of Ceramide-1-Phosphate at the Air-Water Solution Interface in the Absence and Presence of Ca2+. Biophysical Journal. 96:2204-2215. abstract
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Vaknin D; Bu W; Sung J; Jeon Y; Kim D . 2009. Thermally excited capillary waves at vapor/liquid interfaces of water-alcohol mixtures. Journal of Physics-Condensed Matter. 21:115105. abstract
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Jensen T B S; Christensen N B; Kenzelmann M; Ronnow H M; Niedermayer C; Andersen N H; Lefmann K; Jimenez-Ruiz M; Demmel F; Li J; Zarestky J L; Vaknin D . 2009. Anomalous spin waves and the commensurate-incommensurate magnetic phase transition in LiNiPO4. Physical Review B. 79:092413. abstract
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Jensen T B S; Christensen N B; Kenzelmann M; Ronnow H M; Niedermayer C; Andersen N H; Lefmann K; Schefer J; Von Zimmermann M; Li J; Zarestky J L; Vaknin D . 2009. Field-induced magnetic phases and electric polarization in LiNiPO4. Physical Review B. 79:092412. abstract
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