Laboratory for Theory of Defects in Materials (LTDM)

Head:   Ilya Ovid'ko
Staff: Ivan Archakov
Sergey Bobylev
Mikhail Gutkin
Anna Kolesnikova
Kristina Mikaelyan
Anna Reizis
Alexander Sheinerman
Nikolai Skiba

The Laboratory for Theory of Defects in Materials focuses its research activity on the following scientific areas:
A. Theory of intergrain and interphase boundaries in nanostructured bulk materials and films.
B. Modeling of the effects of grain boundaries on high-TCsuperconductivity.
C. Theory of defects and plastic deformation processes in advanced (nanostructured, crystalline, composite, non-crystalline) materials.

List of Selected Publications in 2001-2004::

  1. Monograph: M.Yu. Gutkin and I.A. Ovid'ko, Plastic Deformation in Nanocrystalline Materials (Springer, Berlin, N.Y., etc., 2004).
  2. Monograph: M.Yu. Gutkin and I.A. Ovid'ko, Physical Mechanics of Deformed Nanostructures. Volume 1: Nanocrystalline Materials (St.Petersburg: Yanus, 2003) (in Russian)
  3. Monograph: M.Yu. Gutkin and I.A. Ovid'ko, Defects and Plasticity Mechanisms in Nanostructured and Non-crystalline Materials (St.Petersburg, Yanus, 2001) (in Russian)
  4. I.A. Ovid'ko, Deformation of nanostructures, Science 295 (2002) 2386 (pdf, 116 Kb).
  5. I.A. Ovid'ko, Relaxation mechanisms in strained nanoislands, Phys.Rev.Lett. 88, N4 (2002) 046103 (1-4), (pdf, 95 Kb)
  6. A.L. Kolesnikova and I.A. Ovid'ko, Orientation order in nanoparticles in composite films, Phys.Rev.B, 69 (2004) 035412 (pdf, 272 Kb).
  7. S.V. Bobylev, M.Yu. Gutkin and I.A. Ovid'ko,Transformations of grain boundaries in deformed nanocrystalline materials, Acta Mater., 52, N 5 (2004) 3793-3805 (pdf, 368 Kb).
  8. I.A. Ovid'ko and A.G. Sheinerman, Misfit dislocation loops in composite nanowires, Phil. Mag., 84, N 20 (2004) 2103-2118 (pdf, 174 Kb)
  9. I.A. Ovid'ko and A.G. Sheinerman, Triple junction nanocracks in deformed nanocrystalline materials, Acta Mater., 52, N 5 (2004) 1201-1209 (pdf, 320 Kb).
  10. S.V. Bobylev, M.Yu. Gutkin and I.A. Ovid'ko, Decay of low-angle tilt boundaries in deformed nanocrystalline materials, J. Phys. D 37 (2004) 269-272 (pdf, 106 Kb).
  11. M.Yu. Gutkin, I.A. Ovid'ko and N.V. Skiba, Strengthening and softening mechanisms in nanocrystalline materials under superplastic deformation, Acta Mater. 52, N 6 (2004), 1711-1720 (pdf, 336 Kb).
  12. M.Yu.Gutkin, I.A Ovid'ko and C.S.Pande, Yield stress of nanocrystalline materials: Role of grain boundary dislocations, triple junctions and Coble creep, Philos.Mag. 83, N 9 (2004), 847-863 (pdf, 170 Kb).
  13. I.A. Ovid'ko, Deformation and diffusion modes in nanocrystalline materials, Int.Mater.Rev. (2004), in press.
  14. I.A. Ovid'ko and A.G. Sheinerman, Enhanced formation of nanowires and quantum dots on dislocated substrates, J. Phys.: Condens. Matter 16 (2004), 2161-2170 (pdf, 170 Kb).
  15. I.A. Ovid'ko and A.G. Sheinerman, Delocalized dislocations in quantum dots, J.Exp.Theor.Phys. 98, N 2 (2004) 334-337 (transl. in Zh.Teor.Exp.Fiz. 125, No 2 (2004) 377-381).
  16. S.V. Bobylev and I.A. Ovid'ko, Transformations of faceted grain boundaries in high-Tc superconductors, Phys. Rev. B 67 (2003) 132506 (1-4) (pdf, 50 Kb).
  17. I.A. Ovid'ko, Nanodefects in nanostructures, Philos.Mag.Lett. 83, N 10 (2003) 611-620 (pdf, 272 Kb).
  18. A.A.Fedorov, M.Yu. Gutkin M.Yu. and I.A. Ovid'ko, Transformations of grain boundary dislocation pile-ups at triple junctions in nano- and polycrystalline materials, Acta Mater. 51, No 4 (2003) 887-898 (pdf, 166 Kb).
  19. M.Yu. Gutkin, I.A. Ovid'ko and N.V. Skiba, Crossover from grain boundary sliding to rotational deformation in nanocrystalline materials, Acta Mater. 51, N 14 (2003) 4059-4071 (pdf, 192 Kb).
  20. I.A. Ovid'ko and A.G. Sheinerman, Hyperdislocations in misfit dislocation networks in solid films, J. Phys.: Condens. Matter 15 (2003) 2127-2135 (pdf, 136 Kb).
  21. I.A. Ovid'ko, A.G. Sheinerman and N.V.Skiba, Competing relaxation mechanisms in strained semiconducting and superconducting films, J. Phys.: Condens. Matter 15, N 8 (2003) 1173-1181 (pdf, 164 Kb).
  22. M.Yu. Gutkin, I.A. Ovid'ko and N.V.Skiba, Transformations of grain boundaries due to disclination motion and emission of dislocation pairs, Mater.Sci.Eng.A 339, N1-2, 2003, 73-80 (pdf, 244 Kb).
  23. I.A. Ovid'ko and A.G. Sheinerman, Grain boundary dislocations and enhanced diffusion in nanocrystalline bulk materials and films, Philos.Mag.A 83, N 13 (2003) 1551-1563 (pdf, 150 Kb).
  24. M.Yu. Gutkin, I.A. Ovid'ko and N.V. Skiba, Strengthening mechanism for high-strain-rate superplasticity in nanocrystalline materials, J.Phys. D 36, N 12 (2003) L47-L50 (pdf, 88 Kb).
  25. M.Yu. Gutkin, I.A. Ovid'ko and A.G. Sheinerman, Misfit dislocations in composites with nano-wires, J. Phys.: Condens. Matter 15 (2003) 1173-1181 (pdf, 256 Kb).
  26. S.V. Bobylev, M.Yu. Gutkin and I.A. Ovid'ko, Nanograins with 90° grain boundaries in high transition temperature superconducting films, J. Phys.: Condens. Matter 15 (2003) 7925-7937 (pdf, 170 Kb).
  27. M.Yu. Gutkin, I.A Ovid'ko and C.S.Pande, Physical mechanisms of plastic flow in nanocrystalline materials. Chapter 8, in: Nanoclusters and Nanocrystals, edited by H.S. Nalwa (American Sci. Publ.: California, 2003) pp.225-252.
  28. I.A Ovid'ko, Interfacial defects in nanostructures. Chapter 4, in: Encyclopedia of Nanoscience and Nanotechnology, edited by H.S. Nalwa (American Sci. Publ.: California, 2003)
  29. M.Yu. Gutkin and I.A. Ovid'ko, Yield stress and plastic deformation of nanocrystalline materials, Advances in Mechanics 2, No 1 (2003) 68-125 (in Russian) (pdf, 400 Kb).
  30. M.Yu. Gutkin and I.A. Ovid'ko, Disclinations and rotational deformation in nanocrystalline materials // Rev.Adv.Mater.Sci. 4, No 2 (2003) 79-114 (pdf, 512 Kb).
  31. I.A. Ovid'ko and A.B. Reizis, Kinetics of point defects and amorphization processes in thin films under irradiation, Phys. Sol. State 45, No 9 (2003) 1679-1682 (pdf, 42 Kb).
  32. S.V. Bobylev and I.A. Ovid'ko, Dislocation structure and transport properties of low-angle tilt boundaries in high-temperature superconductors, Tech.Phys. 48, N6 (2003) 722-6.
  33. S.V. Bobylev and I.A. Ovid'ko, Faceted grain boundaries in polycrystalline films, Phys. Sol.State 45, No 10 (2003) 1926-1931 (pdf, 70 Kb), [FTT 45, No 10 (2003) 1833-1838].
  34. N.F. Morozov, I.A. Ovid'ko, Yu.V. Petrov and A.G. Sheinerman, Formation and convergence of nanocracks in mechanically loaded nanocrystalline solids, Rev.Adv.Mater.Sci. 4, No 1 (2003) 65-69 (pdf, 116 Kb).
  35. A.L. Kolesnikova, I.A. Ovid'ko and A.A. Fedorov, Local migration of grain boundaries in polycrystalline materials under plastic deformation conditions, Tech.Phys.Lett. 29, N6 (2003) 488-490.
  36. I.A. Ovid'ko and A.G. Sheinerman, Defects in 2D arrays of quantum dots, Rev.Adv.Mater.Sci. 4, N 2 (2003), 163-169 (pdf, 78 Kb).
  37. E.B. Baturin, A.L. Kolesnikova and I.A. Ovid'ko, Elastic energy of grain boundaries in nanocrystalline films consisting of columnar grains, Inorganic Materials 39, N4 (2003) 418-23. [Neorgan. Mater. 39, N4 (2003) 505-510].
  38. I.A. Ovid'ko and Sheinerman A.G., Perfect, partial and split dislocations in quantum dots, Phys. Rev. B 66 (2002) 245309 (1-8) (pdf, 100 Kb).
  39. A.A. Fedorov, M.Yu. Gutkin M.Yu. and I.A. Ovid'ko, Triple junction diffusion and plastic flow in fine-grained materials, Scr.Mater., 47, 2002, 51-55 (pdf, 88 Kb).
  40. I.A. Ovid'ko and Sheinerman A.G., Nano-islands on a composite substrate with misfit dislocations, Appl. Phys.A 74, N 2, 2002, 273-7 (pdf, 144 Kb).
  41. M.Yu. Gutkin, I.A. Ovid'ko and N.V. Skiba, Changes in the grain boundary misorientation caused by emission of dislocation pairs, Tech. Phys. Lett 28, N5, 2002, 437-8.
  42. I.A. Ovid'ko and Sheinerman A.G., Dislocation dipoles in nano-scale films with compositional inhomogeneities, Philos.Mag.A 82, N16, (2002), 3119-3127 (pdf, 256 Kb).
  43. M. Bender, N. Katsrakis, G. Kiriakidis, I.A. Ovid'ko and A.B. Reizis Physical mechanisms of enhanced conductivity in irradiated InOx nanocrystalline films, Mater.Phys.Mech. 5, N1, 2002, 10-4.
  44. Gutkin M.Yu. and Ovid'ko I.A., Misfit dislocations and phase transformations in high-Tc superconducting films, J.Phys.: Condens.Matter., 15, N 47 (2002) 12551-12562 (pdf, 152 Kb).
  45. Gutkin M.Yu. and Ovid'ko I.A., inetics of cellular dislocations in nanostructured solids under superplastic deformation, Ann.Chimie 27, N3, 2002, 111-6.
  46. A.A. Fedorov, A.L. Kolesnikova and I.A. Ovid'ko, Grain boundary dislocation structures near triple junctions in nano- and polycrystalline materials, Mater.Phys.Mech. 5, N1, 2002, 49-55 (pdf, 118 Kb).
  47. Ovid'ko I.A.,Interfaces and stresses in nanostructured and high-Tc superconducting materials, in: Science and Technology of Interfaces, International Symposium in Honor of Dr. Bhakta Rath, ed. by S. Ankem, C.S. Pande, I.Ovid'ko and S. Ranganathan (TMS, Warrendale, 2002) p. 245-56.
  48. M.Yu.Gutkin, A.L.Kolesnikova, I.A. Ovid'ko and N.V.Skiba, Rotational deformation mechanism in fine-grained materials, J.Metast.Nanocryst.Mater. 12, 2002, 47-57 (pdf, 448 Kb).
  49. Ovid'ko I.A. and Sheinerman A.G., Misfit dislocations in thin films on plastically deformed substrates, Phys.Sol.State 44, No. 7, 2002, 1298-1304 (pdf, 74 Kb).
  50. Ovid'ko I.A., Effects of misfit stresses on high-Tc superconductivity in thin-film cuprates, J.Phys.: Condens.Matter 13, N 4, 2001, L97-103 (pdf, 86 Kb)
  51. E.B. Baturin, A.L. Kolesnikova and I.A. Ovid'ko, Interfacial elastic fields of nano- and microcrystalline inclusions in composites, Inorganic Materials 38, N1, 2002, 85-90.
  52. Ovid'ko I.A. and Sheinerman A.G., Misfit dislocation dipoles in nanodimensional films with periodically modulated composition, Tech.Phys.Lett. 28, N3, 2002, 198-200 (pdf, 38 Kb).
  53. A.L. Kolesnikova, A.E. Romanov, I.A. Ovid'ko, Misfit disclination structures in nanocrystalline films, Solid State Phenomena, 87 (2002) 265-76 (pdf, 616 Kb).
  54. Gutkin M.Yu. and Ovid'ko I.A., Transformations of low-angle tilt boundaries in high-Tc superconductors, Phys. Rev. B 63, 2001, 64515 (1-9) (pdf, 120 Kb)
  55. S.V.Bobylev, I.A.Ovid'ko, A.G.Sheinerman, Effects of misfit stresses on the structure and transport properties of grain boundaries in high-Tc superconducting films, Phys.Rev.B 64, N 22, 2001, 224507. (pdf, 128 Kb)
  56. I.A. Ovid'ko, Dilatation stresses and transport properties of grain boundaries in high-Tc superconductors, Mater.Sci.Eng. A 313, N1-2 (2001) 207-17 (pdf, 240 Kb)
  57. I.A. Ovid'ko, A.G.Sheinerman, Nano-wires associated with compositional inhomogeneities in multilayered films, J.Phys.: Condens.Matter. 13, 2001, 9645-53 (pdf, 160 Kb)
  58. I.A. Ovid'ko I.A., A.G.Sheinerman, Misfit dislocations in multilayered films on disclinated substrates, J.Phys.: Condens.Matter. 13, N35, 2001, 7937-51 (pdf, 168 Kb)
  59. M.Yu.Gutkin, I.A. Ovid'ko, C.S.Pande, Theoretical models of plastic deformation processes in nanocrystalline materials, Rev.Adv.Mater.Sci. 2, N 1, 2001, 80-102 (pdf, 224 Kb)
  60. Gutkin M.Yu., Mikaelyan K.N. and Ovid'ko I.A., Generation and evolution of partial misfit dislocations and stacking faults in thin-film heterostructures, Phys. Sol. State 43, N1, 2001, 42-6 (pdf, 128 Kb)
  61. Ovid'ko I.A and Reizis A.B., Grain boundary dislocation climb and diffusion in nanocrystalline solids, Phys. Sol. State 43, N1, 2001, 35-8 (pdf, 112 Kb)
  62. I.A. Ovid'ko I.A., A.G. Sheinerman, Dislocation dipoles in nanocrystalline films, J.Nanosci.Nanotechnol. 1 , N2, 2001, 215-20.
  63. M.D. Baro, Yu.R. Kolobov, I.A. Ovid'ko, H.-E. Schaefer, B.B. Straumal, R.Z. Valiev, I.V. Alexandrov, M. Ivanov, K. Reimann, A.B. Reizis, S. Surinach, A.P. Zhilyaev, Diffusion and related phenomena in bulk nanostructured materials, Rev.Adv.Mater.Sci. 2, N1, 2001, 1-43 (pdf, 808 Kb)

Organizational Activities:

Participation in organization of the following international scientific meetings:

  • NN2005 2nd International Conference on Nanomaterials and Nanotechnologies (Crete, Greece; June 14-18, 2005)
  • NMM2004 International Workshop on Interface Controlled Materials: Research and Design (St.Petersburg, Russia, 2004)
  • MRS Fall 2003 Symposium NANO: MRS Symposium Q "Mechanical Properties of Nanostructured Materials and Nanocomposites", Boston, USA, December 1-5, 2003
    (Call for Papers, pdf;   Guide for Abstract Submission, pdf)
  • NN2003: International Conference on Nanomaterials and Nanotechnologies (Crete, Greece; August 30 - September 6, 2003)
  • MRS Fall 2002 Symposium : Nanomaterials for Structural Applications (pdf) (Boston, USA, December 2-6, 2002)
  • NATO Advanced Study Institute on Synthesis, Functional Properties and Applications of Nanostructures (Crete, Greece, 2002)
  • STI-2002   TMS Annual Meeting, Seattle, Washington - USA, February 17-21, 2002
    International Symposium on Science and Technology of Interfaces in Honor of Dr. Bhakta Rath
  • ICMRD 2000 International Workshop on Interface Controlled Materials: Research and Design (St.Petersburg, Russia, 2000)
  • AAIS 99 International Workshop on Applied Aspects of Interface Science (St.Petersburg, Russia, 1999)
  • ARW 99 Advanced Research Workshop on Nanostructured Films and Coatings, (Santorini, Greece, 1999)
  • Russia-US Workshop on Nanoparticles and Nanostructures (St.Petersburg, Russia, 1997)

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Last updated  July 30, 2004