Dr. Ashutosh Tiwari

Dr. Ashutosh Tiwari
Research Associate/ Senior Researcher
NSF Center for Advanced Materials and Smart Structures
Department of Materials Science & Engineering
North Carolina State University
Raleigh, NC 27695-7916

Education:


Ph.D. 2000 Solid State Physics & Materials Science Indian Institute of Technology, Kanpur
M.Sc. 1993 Physics, Indian Institute of Technology, Delhi
B.Sc. 1990 Physics (Hons.), Christ Church College, Kanpur

Awards and Honors:

Membership:
Research Interest:

Low temperature electrical, magnetic and thermodynanic properties of transition metal perovskite oxides; Superconductors and Giant magnetoresistive materials; Wide band gap II-VI and III-V semiconductors; Transparent conductors; Disordered metallic systems; Metal-insulator transition; Thin film deposition and processing; Laser ablation; Sputtering; Thermal & e-beam evaporation, Transmission electron microscopy, etc


Teaching Interest:


Electricity, Magnetism and magnetic materials, Modern Phsics, Optics, Fundamentals of thin film growth, Advanced materials processing, Structural characterization techniques, Low-temperature techniques, Theromdynamics, etc


Skills:


Work Experience:

2001-present: Research Associate, Center for Advanced Materials and Smart Structures, North Carolina State University, Raleigh
1999-2001: Post-doctoral Fellow, Department of Physics and Astronomy, University of Delaware, Newak
1993-1999: Research Assistant, Department of Physics, Indian Institute of Technology, Kanpur

Publications: Published more than 50 papers in reputed international journals and conferences

Ten Recent Selected Publications:


  1. Tiwari A, Chugh A, Jin C, et al., "Role of self-assembled gold nanodots in improving the electrical and optical characteristics of zinc oxide films" Journal of Nanoscience and Nanotechnology 3, 368-371, 2003
  2. Ashutosh Tiwari et al., “Rectifying electrical characteristics of ZnO/La0.7Ca0.3MnO3 heterostructure ” Applied Physics Letters 83, 1773, 2003.
  3. Wang H, Zhang X, Gupta A, Ashutosh Tiwari and J Narayan "Growth and characteristics of TaN/TiN superlattice structures" Applied Physics Letters 83, 3072-3074,2003
  4. Ashutosh Tiwari, J. Narayan, C. Jin and A. Kvit " Growth of Epitaxial NdNiO3 and Integration with Si(100)" Applied physics letters, 80, 1337, 2002
  5. Ashutosh Tiwari, C. Jin and J. Narayan "Stress induced tuning of metal-insulator transition in NdNiO3 films" Applied Physics Letters, May 20,2002
  6. Ashutosh Tiwari, K. P. Rajeev and J. Narayan "Low temperature electrical transport in La1-xNdXNiO3" Solid State Communications 121, 357, 2002
  7. H. Wang, Ashutosh Tiwari, A. Kvit, X. Zhang and J. Narayan " Epitaxial growth of TaN films on Si(100) and (111)" Applied physics letters 80, 2323, 2002
  8. H. Wang, Ashutosh Tiwari, A. Kvit, X. Zhang and J. Narayan "Copper diffusion characteristics in single-crystal and polycrystalline TaN" Applied physics letters 81, 2002
  9. Ashutosh Tiwari, C. Jin, A. Kvit, D. Kumar, J. F. Muth, J. Narayan "Structural, optical and magnetic properties of diluted magnetic semiconducting Zn1-xMnxO films" Solid State Communications 121, 371, 2002
  10. Ashutosh Tiwari and K. P. Rajeev " Electron tunneling experiments on La0.7A0.3MnO3 (A=Ca, Sr, Ba)" Physical Review B 60, 10591, 1999
  11. Ashutosh Tiwari and K. P. Rajeev "Electrical transport in LaNiO3-d" Journal of Physics:Condensed Matter 11, 3291,1999
  12. Ashutosh Tiwari and K. P. Rajeev " Effect of oxygen stoichiometry on the electrical resistivity behaviour of NdNiO3-d" Solid State Communications 109, 119, 1999