 | Roland Hayn |
| IM2NP Faculté des Sciences et Techniques Avenue Escadrille Normandie Niemen Case 142 13397 Marseille Cedex 20 France | |
| téléphone : +33 (0) 4 91 28 90 52 fax : + 33 (0) 4 91 28 87 75 | |
| mail : roland.hayn@im2np.fr |
| | Roland Hayn |
| IM2NP Faculté des Sciences et Techniques Avenue Escadrille Normandie Niemen Case 142 13397 Marseille Cedex 20 France | |
| téléphone : +33 (0) 4 91 28 90 52 fax : + 33 (0) 4 91 28 87 75 | |
| mail : roland.hayn@im2np.fr |
Professeur, Université Paul Cézanne Aix-Marseille III
Domaines d'activité :
Calcul des structures électroniques de matériaux magnétiques ou fortement corrélés.
Publications récentes :
Rosner H., Drechsler S.-L., Koepernik K., Hayn R., Eschrig H. Possibility of a spin-Peierls state in CuSiO3 from electronic structure theory. Physical Review B, vol. 63, p. 073104-, 2001
Siurakshina L., Ihle D., Hayn R. Magnetic order and finite-temperature properties of the two-dimensional frustrated Heisenberg model. Physical Review B, vol. 64, p. 104406-, 2001
Hayn R., Pashchenko V.A., Stepanov A., Masuda T. and Uchinokura K. Magnetic anisotropy of BaCu2Si2O7 : theory and antiferromagnetic resonance. Physical Review B, vol. 66, p.184414-, 2002
Kuzian R.O., Hayn R., Barabanov A.F. Drude peak treatment by mode coupling approximation in the one-dimensional t-J model. Physics Letters A, vol. 294, p. 227, 2002
Moskvin A.S., Neudert R., Knupfer M., Fink J., Hayn R. Character of charge transfer excitons in Sr2CuO2Cl2. Physical Review B, vol. 65, p. 180512-, 2002
Yaresko A.N., Perlov A.Y., Hayn R., Rosner H. Exchange integrals of Sr2CuO2Cl2 and Ba2Cu3O4Cl2 from LDA+U calculations. Physical Review B, vol. 65, p. 115111-, 2002
Daré A.M., Hayn R. and Richard J.L. Orbital and spin exchange in LiNiO2. Europhysics Letters, vol. 61, p. 803-, 2003
Drechsler S.L., Malek J., Hayn R., Knupfer M., Moskvin A.S., Fink J. Low-energy excitations in an undoped cuprate-description beyond the standard pdsigma-model ?. International Journal of Modern Physics B, vol. 17, p. 3324-, 2003
Kovacevic Z., Plakida N.M., Hayn R. Resonant states in high temperatures superconductors with impurities. Theoretical and Mathematical Physics, vol. 136, p. 1155-, 2003
Kuzian R.O., Hayn R., Barabanov A.F. Dispersion of the dielectric function of a charge-transfer insulator. Physical Review B, vol. 68, p. 195106-, 2003
Kuzian R.O., Hayn R., Richter J. Recursion method and one-hole spectral function of the Majumdar-Ghosh model. European Physical Journal B, vol. 35, p. 21-, 2003
Moskvin A.S., Malek J., Knupfer M., Neudert R., Fink J., Hayn R., Drechsler S.-L., Motoyama N., Eisaki H., Uchida S. Evidence for two types of low-energy charge transfer excitations in Sr2CuO3. Physical Review Letters, vol. 91, p. 037001-, 2003
Avella A., Mancini F., Hayn R. The energy-scale dependent composite operator method for the single-impurity Anderson model. European Physical Journal B, vol. 37, p. 465-471, 2004
Chaplygin I., Hayn R. Sb2O2VO3 as a candidate for an ideal inorganic spin-Peierls compound. Physical Review B, vol. 70, p. 064510, 2004
Elgazzar S., Opahle I., Hayn R., Oppeneer P.M. Calculated de Haas-van Alphen quantities of CeMin5 (M=Co, Rh, and Ir) compounds. Physical Review B, vol. 69, p. 214510, 2004
Lombardo P., Daré A.M., Hayn R. Effect of Hund's exchange on the spectral function of a triply orbital degenerate correlated metal. Physical Review B, vol. 72, p. 245115, 2005
Mertz D., Hayn R., Opahle I., Rosner H. Calculated magnetocrystalline anisotropy and magnetic moment distribution in Li2Cu02. Physical Review B, vol. 72, p. 085133, 2005
Bertaina S., Hayn R. Exchange integrals and magnetization distribution in BaCu2X2O7 (X=Ge, Si). Physical Review B, vol. 73, p. 212409, 2006
Chanier T. , Sargolzaei M. , Opahle I., Hayn R., Koepernik K. LSDA+U versus LSDA: Towards a better description of the magnetic nearest-neighbor exchange in Co- and Mn-doped ZnO. Physical Review B, vol. 73, p. 134418, 2006
Hayn R., Lombardo P., Matho K. Spectral density of the Hubbard model by the continued fraction method. Physical Review B, vol. 74, n° 20, p. 205124, 2006
Kuzian R., Daré A.M., Sati P., and Hayn R. Crystal-field theory of Co2+ in doped ZnO. Physical Review B, vol. 74, p.155201, 2006
Lombardo P., Hayn R. Japaridze G.I. Insulator-metal-insulator transition and selective spectral-weight transfer in a disordered strongly correlated system. Physical Review B, vol. 74, p. 085116, 2006
Sati P., Hayn R., Kuzian R., Régnier S., Schäfer S., Stepanov A., Morhain C., Deparis C., Laügt M., Goiran M., and Golacki Z. Magnetic anisotropy of Co2+ as signature of intrinsic ferromagnetism in ZnO:Co. Physical Review Letters, vol. 96, p. 017203, 2006
Japaridze G. I., Hayn R., Lombardo P., Müller-Hartmann E. Band-insulator–metal–Mott-insulator transition in the half-filled t-t′ ionic Hubbard chain. Physical Review B, vol. 75, n° 24, p. 245122, 2007
Oppeneer P.M., Elgazzar S., Shick A.B., Opahle I., Rusz J., Hayn R. Fermi surface changes due to localized-delocalized f-state transitions in Ce-115 and Pu-115 compounds. Journal of Magnetism and Magnetic Materials, vol. 310, p. 1684-1690, 2007
Serdouk S., Hayn R. , Autran J.-L. Theory of spin dependent tunnelling current in ferromagnetic metal-oxide-silicon structures. Journal of Applied Physics, vol. 102, p. 113707, 2007
Chanier T., Opahle I., Sargolzaei M., Hayn R., Lannoo M. Magnetic state around cation vacancies in II-VI semiconductors. Physical Review Letters, vol. 100, p. 026405 , 2008
Craco L., Lombardo P., Hayn R., Japaridze G. I., Müller-Hartmann E. Electronic phase transitions in the half-filled ionic Hubbard model. Physical Review B, vol. 78, n° 7, p. 075121, 2008
Ghorayeb A. M., Costes M., Goiran M., Broto J.-M., Schäfer S., Hayn R., Richter J., Millet P., and Stepanov A. High-field magnetization and electron spin resonance in the spin-gap system eta-Na1.286V2O5. Physical Review B, vol. 77, p. 224434 (1 à 6), 2008
Lombardo P., Guisiano J.C., Hayn R. Full diagonal disorder in a strongly correlated system. Physica B : Condensed Matter, vol. 403, p. 3485, 2008
