Institut für Theoretische Physik

Institut für Theoretische Physik Arbeitsgruppe Halbleiterphysik

Older publications

  1. G.Czycholl, H.Kühl: Electronic Density of States of Binary Alloys within  the $\nu$-Cluster-Approximation,  Z. Phys. B 24, 257 (1976).
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  3. G.Czycholl, N.Grewe, H.J.Leder, S.Drosdziok: Dependence of Transport Properties on the Water Content in KCP, Solid State\ Commun. 22, 67 (1977).
  4. G.Czycholl, J.Zittartz: Electronic Transport in Substitutionally Disordered Systems. I.: Derivation of a Cluster Approximation, Z. Phys. B 30, 375 (1978).
  5. G.Czycholl: Electronic Transport in Substitutionally Disordered Systems. II.: MCPA-Results  and Monte-Carlo Studies for Binary Alloys , Z. Phys. B 30, 383 (1978)
  6. G.Czycholl, J.Zittartz: Electrical Conductivity for Lloyd's Disorder Model in One Dimension, Solid State Commun. 30, 289 (1979)
  7. H.J.Leder, G.Czycholl: Self-Consistent Alloy-Treatment of the Periodic Anderson Model: Susceptibility and Specific Heat of Intermediate Valence Compounds, Z. Phys. B 35, 7 (1979)
  8. G.Czycholl, H.J.Leder: Alloy Analog Approximation for the Periodic Anderson Model, J.Magn.Magn.Mat. 13, 192 (1979)
  9. G.Czycholl, B.Kramer: Nonvanishing Zero Temperature Static Conductivity in One Dimensional Disordered Systems, Solid State\ Commun. 32, 945 (1979).
  10. G.Czycholl, H.J.Leder: CPA Alloy Analog Treatment of the Disordered Extended Anderson Model, J.Magn.Magn.Mat. 15-18, 959 (1980)
  11. H.J.Leder, G.Czycholl: Theory of Substitutiuonal Alloys of Intermediate Valence Systems: Concentration and Temperature Dependence of the Static Magnetic Susceptibility, Z. Phys. B 38, 219 (1980)
  12. G.Czycholl, B.Kramer: Numerical Investigation of the Conductivity and Electron Localization of a One Dimensional Disordered System, Z. Phys. B 39, 193 (1980)
  13. H.J.Leder, G.Czycholl: Electronic Transport in Intermediate Valence Compounds, in: Recent Developments in Condensed Matter Physics, Vol.2, p.55; J.T.Devreese, L.F.Lemmers, V.E.van Doren, J.van Royen (eds.), Plenum Press: New York - London 1981
  14. G.Czycholl, B.Kramer: Numerical Investigation of the DC-Conductivity and Electron Localization in One-Dimensional Disordered Systems, in: Recent Developments in Condensed Matter Physics, Vol.2, p.159; J.T.Devreese, L.F.Lemmers, V.E.van Doren, J.van Royen (eds.), Plenum Press: New York - London 1981
  15. H.J.Leder, G.Czycholl: On the Electrical Resistivity in Intermediate Valence Systems, in: Valence Fluctuations in Solids, p.237, L.M.Falicov, W.Hanke, M.B.Maple (eds.), North-Holland: Amsterdam 1981
  16. G.Czycholl, H.J.Leder: Dynamical Susceptibility of Intermediate Valence Compounds, in: Valence Fluctuations in Solids, p.443, L.M.Falicov, W.Hanke, M.B.Maple (eds.), North-Holland: Amsterdam 1981
  17. G.Czycholl, H.J.Leder: Dynamical Properties of Intermediate Valence Compounds, in:Proceedings of the 4th International Seminar on Magnetism (Hetzdorf, liR, 1981), published in ''Wissenschaftliche Zeitschrift der Hochschule für Verkehrswesen'', Sonderbeilage No.3, p.29 (Dresden 1981)
  18. G.Czycholl, B.Kramer, A.MacKinnon: Conductivity and Localization of Electron States in One Dimensional Disordered Systems: Further Numerical Results, Z. Phys. B 43, 5 (1981)
  19. G.Czycholl, H.J.Leder: Transport Properties of Intermediate Valence Compounds Studied within the Alloy Analog Approximation of the Periodic Anderson Model, Z. Phys. B 44, 59 (1981)
  20. G.Czycholl: Dynamical Magnetic Response of Mixed Valent SmB6: A Theoretical Prediction, Phys. Rev. B25 (Rapid Communications), 3413 (1982)
  21. E.Baeck, G.Czycholl: Alloy Analog Approximation for the Spinless Falicov-Kimball Model with Hybridization, Solid State Commun. 43, 89 (1982)
  22. G.Czycholl, H.J.Leder: Alloy Analog Treatment of the Dynamical Magnetic Susceptibility of Intermediate Valence Compounds, Z. Phys.\ B 48, 67 (1982)
  23. G.Czycholl, H.Keiter, E.Niebur: Infinite Order Brillouin-Wigner Perturbation Theory of the Mixed Valent Impurity, in: Valence Instabilities, p.45, P.Wachter and H.Boppard (eds.), North-Holland: Amsterdam 1982
  24. H.Keiter, G.Czycholl: Integral Equation Studies for f-Electron Energies of Rare-Earth Ions in a Metallic Compound, J.Magn.Magn.Mat. 31-34, 477 (1983)
  25. G.Czycholl: CPA for Two-Dimensional Electronic Transport in Strong Magnetic Fields, Solid State Commun. 49, 203 (1984)
  26. E.Baeck, G.Czycholl: Resistivity and Specific Heat of Metallic Glasses due to the Interaction of Conduction Electrons with Two-Level Systems, J.Phys. C 17, 3569 (1984)
  27. G.Czycholl: Simple Disorder Models for Two-Dimensional Electronic Transport in Strong Magnetic Fields, in Proceedings LITPIM Suppl. (PTB-PG-1), p.306, L.Schweitzer and B.Kramer (eds.), PTB Braunschweig 1984
  28. G.Czycholl: Equation-of-Motion Treatment of the N-fold-Degenerate Anderson Model in the Large-N Limit, Phys. Rev. B 31, 2867 (1985)
  29. G.Czycholl, S.Doniach: A BCS Theory of Heavy Fermion Superconductivity, J.Magn.Magn.Mat. 47&48, 17 (1985)
  30. G.Czycholl: The Anderson Model in the Limit of Large Degeneracy N, J.Magn.Magn.Mat. 47&48,     350 (1985)
  31. G.Czycholl: Approximate Treatments of Intermediate Valence and Heavy Fermion Model Systems, Physics Reports 143, 277 (1986)
  32. G.Czycholl: Approximate Treatments of Periodic Intermediate Valence / Heavy Fermion Systems, J.Magn.Magn.Mat. 63&64, 257 (1987)
  33. G.Czycholl: The Diagonal and Hall Conductivity of a Two-Dimensional Electron System in a Strong Magnetic Field, Solid State Commun. 67, 499 (1988)
  34. G.Czycholl, W.Ponischowski: The Recursion Method for a Two-Dimensional Electron System in a Strong Magnetic Field, Z. Phys.\ B 73, 343 (1988)
  35. H.Schweitzer, G.Czycholl: Standard Perturbation Treatment of the Periodic Anderson Model, J.Magn.Magn.Mat. 76 & 77, 77 (1988)
  36. H.Schweitzer, G.Czycholl: U-Perturbation Treatment of Heavy-Fermion Systems, Z. Phys. B 74, 303 (1989)
  37. H.Schweitzer, G.Czycholl: Second Order U Perturbation Approach to the Anderson Lattice Model in High Dimensions, Solid State Commun.  69, 171 (1989)
  38. H.Schweitzer, G.Czycholl: Selfconsistent U-Perturbation Treatment of the Anderson Lattice Model in High Dimensions, Physica B 163, 415 (1990)
  39. H.Schweitzer, G.Czycholl: Selfconsistent Perturbational Approach to the Heavy Fermion Problem in High Dimensions, Z. Phys. B 79, 377 (1990)
  40. H.Schweitzer, G.Czycholl: The Second Order U-Perturbation Approach to the Anderson Lattice Model in One, Two and Three Dimensions, Solid State Commun. 74, 735 (1990)
  41. H.Schweitzer, G.Czycholl: Weak-Coupling Treatment of Correlated Electron Systems in Finite Dimensions, Physica B 165 & 166, 415 (1990)
  42. H.Schweitzer, G.Czycholl: Weak Coupling Treatment of the Hubbard Model in One, Two and Three Dimensions, Z. Phys. B 83, 93 (1991)
  43. H.Schweitzer, G.Czycholl: Resistivity and Thermopower of Heavy Fermion Systems, Phys. Rev. Letters 67, 3724 (1991)
  44. H.Schweitzer, G.Czycholl: Transport Properties of the Periodic Anderson Model in High Dimensions, J.Magn.Magn.Mat, 108, 150 (1992)
  45. G.Czycholl, Q.Qin: New 1/N-Expansion Method for the N-fold Degenerate Hubbard Model, Phys. Rev. Letters 68, 3244 (1992)
  46. G.Czycholl, H.Schweitzer: Perturbational Treatment of Heavy Fermions in High Dimensions, invited talk presented at the12th General Conference of the Condensed Matter Division of the European Physical Society (Prag 1992), published in: Physica Scripta\ T 45, 125 (1992)
  47. G.Czycholl, Q.Qin: Czycholl and Qin respond, Phys. Rev. Letters 69, 2879 (1992)
  48. G.Czycholl, Q.Qin, H.Schweitzer: Standard U-Perturbation Approach to the Heavy Fermion Problem in High Dimensions, Physica B 186 - 188, 844 (1993)
  49. Q.Qin, G.Czycholl: Transport Properties of the Hubbard Model in High Dimensions, in Proceedings of the SCES'93 (San Diego), Physica B 199 & 200, 219 (1994)
  50. E.Halvorsen, G.Uhrig, G.Czycholl: 1/d Corrections for Interacting Spinless Fermions: One-Particle Properties, Z. Phys. B 94, 291 (1994)
  51. S.Wermbter, G.Czycholl: Metal-Insulator-Transition and Fermi-Liquid Behavior in the Infinite Dimensional Hubbard Model, J. Phys.: Condens. Matter  6, 5439 (1994)
  52. E.Halvorsen, G.Czycholl: Reentrant Antiferromagnetism within a Weak-Coupling Treatment of the Hubbard Model, J.Phys.: Condens.Matter 6, 10331 (1994)
  53. S.Wermbter, G.Czycholl: Antiferromagnetism and Metal-Insulator-Transition in the Infinite Dimensional Hubbard Model, J. Phys.: Condens. Matter 7, 7335 (1995)
  54. H.Dierks, G.Czycholl: Tight-Binding Calculations of the Subband Structures of Zincblende-Semiconductor [001] Quantum-Wells, Z. Phys. B 99, 207 (1995/96).
  55. E.Halvorsen, G.Czycholl: Antiferromagnetism within a selfconsistent perturbation treatment of the symmetric periodic Anderson model, J. Phys.: Condens.Matter 8, 1775 (1996)
  56. S.Wermbter, K.Sabel, G.Czycholl: Electrical Resistivity of Heavy-Fermion Systems with non-magnetic Impurities, Phys. Rev. B 53, 2528 (1996)
  57. G.Czycholl, A.L.Kuzemsky, S.Wermbter: New Interpolative treatment of the Single-Impurity Anderson Model, Europhys. Lett. 34, 133 (1996)
  58. Bang-Gui Liu, Fu-Cho Pu, G.Czycholl: Effects of next-nearest-neighbor exchange on the magnetic properties of layered antiferromagnets, J.Magn. Magn.Mat. 154, 369 (1996)
  59. R.Jursa, S.Wermbter, G.Czycholl: Superconductivity within the Extended Hubbard Model, Proceedings of the 21st International Conference on Low Temperature Physics (Prague 1996), Czechoslovak Journal of Physics 46, Suppl. S2, 613 (1996)
  60. S.Wermbter, K.Wermbter, G.Czycholl: Nonmagnetic Impurities in Heavy Fermion Systems, in: SCES-96, L.Degiorgi, P.Wachter (eds.), Physica B 230 - 232, 463 (1997)
  61. Bang-Gui Liu, Gerd Czycholl: Accurate mapping of quantum Heisenberg magnetic models of spin s on strong-coupling magnon systems, J. Phys.: Condens.Matter 25, 5449 (1997)
  62. H.Dierks, G.Czycholl: Tight-binding calculation of linear excitonic absorption spectra of single quantum wells, Journ. Cryst. Growth 184/185, 877 (1998)
  63. G.Czycholl: Influence of Hybridization on the Properties of the Spinless Falicov-Kimball Model,  cond-mat/9805363, Phys. Rev. B 59, No. 4, 2642 (1999) 
  64. R.Jursa, S.Wermbter, G. Czycholl: Superconductivity in weakly correlated systems, Eur. Phys. J.  B 12,  387   (1999) 
  65.  G.Czycholl: Theoretische Festkörperphysik, Friedr.Vieweg & Sohn Verlag (Braunschweig/Wiesbaden 2000) bzw. Springer-Verlag (Heidelberg/Berlin 2000), ISBN 3-528-06952-X bzw. 3-540-41547-5
  66.  V. Janis, G. Czycholl:  Fluctuation-driven insulator-to-metal transition in an external magnetic field
  67. Phys. Rev. B  61, 9875 (2000)
  68.   L. Dulca, J. Banhart, G.Czycholl: Electrical conductivity of  finite metallic systems: Disorder
  69. Phys. Rev. B 61, 16502 (2000)
  70.  V.Zlatic, J.K.Freericks, R.Lemanski, G.Czycholl: Exact solution of the multicomponent Falicov-Kimball model in infinite dimensions, Phil. Mag. B  81, 1443 (2001)
  71.   G. Czycholl:  Resistivity and Thermoelectric Power of Heavy Fermion Systems
  72. Acta Physica Polonica B  32, 3345 (2001)
  73.   I.Schnell, G.Czycholl, R.C.Albers: Hubbard-U calculations for Cu  from first-principles Wannier functions
  74. Phys. Rev. B  65, 075103 (2002)
  75.  J.Banhart, G.Czycholl: Electrical conductivity of long-range  ordered alloys, Europhys. Lett. 58, 264 (2002)