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 d'Aix-Marseille


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

Kuzmin M.D., Hayn R., Oison V. Ab initio calculated XANES and XMCD spectra of Fe(II) phthalocyanine. Physical Review B,vol. 79, p. 024413, 2009

Kondakova I.V., Kuzian R.O., Raymond L. Hayn R., Laguta V.V., Evidence for impurity-induced polar state in Sr1-xMnxTiO3 from density functional calculations. Physical Review B,vol. 79, p. 134117, 2009

Chanier T., Virot F., Hayn R. Chemical trend of exchange coupling in diluted magnetic II-VI semiconductors : Ab initio calculations. Physical Review B,vol. 79, p. 205204, 2009

Michelini F., Cavassilas N., Hayn R., Szczap M. Multiband kp models for strained zincblende crystals : Application to the fine structure of ZnO. Physical Review B,vol. 80, p. 245210, 2009

Holder M.G., Jesche A., Lombardo P., Hayn R., Vyalikh D.V., Danzenbächer, Kummer K., Krellner C., Geibel C. Kucherenko Yu., Kim T.K., Follath R., Molodtsov S.L., Laubschat C. CeFePO : f-d Hybridization and Quenching of Superconductivity. Physical Review Letters,vol. 104, p. 096402, 2010

Boukortt A., Berrah S., Hayn R., Zaoui A. First-principle calculation of the optical properties of zinc-blende Zn1-xCdxSySe1-y. Physica B,vol. 405, p. 763, 2010

Jonckheere T., Japaridze G.I., Martin T., Hayn R. Transport through a band insulator with Rashba spin-orbit coupling : Metal-insulator transition and spin-filtering effects. Physical Review B,vol. 81, p. 165443, 2010

Kuzian R.O., Laguta V.V., Daré A.-M., Kondakova I.V., Marysko M., Raymond L., Garmash E.P., Pavlikov V.N., Tkach A., Vilarinho P.M., Hayn R. Mechanism of magnetoelectricity in manganese doped incipient ferroelectrics. EPL (Europhysics Letters),vol. 92, p. 17007, 2010

Kuzian R.O., Daré A.-M., Kondakova I.V., Raymond L., Hayn R., Laguta V.V. Magneto-electric couplings in Sr1-xMnxTi1-yMnyO3. IOP Conference Series : Materials Science and Engineering,vol. 15, p. 012047, 2010

Savoyant A., Daré A.-M., Hayn R., Kuzian R., Stepanov A. Hybridization and magnetic anisotropy of S-state ions in wurtzite DMS. Physica Status Solidi B,Vol. 247, 1691, 2010

Boukortt A., Hayn R., Virot F., Zaoui A. Influence of magnetic Co impurities on the optical interband transitions in ZnO. Physica status solidi B,Vol. 248, 980, 2011

Virot F., Hayn R., Boukortt A. Electronic structure and Jahn-Teller effect in GaN :Mn and ZnS :Cr. Journal of Physics : Condensed Matter,Vol. 23, p. 025503, 2011

Sargolzaei M., Lotfizadeh N., Hayn R. First principles study on magnetic properties of Zn vacancies in ZnO doped with single chalcogen X (X=S, Se, and Te). Journal of Applied Physics,vol. 109, p. 073705, 2011

Virot F., Hayn R., Richter M., van den Brink J. Metacinnabar (b-HgS) : A strong 3D topological insulator with highly anisotropic surface states. Physical Review Letters,Vol. 106, 236806, 2011

Oison V., Saadi L., Lambert-Mauriat C., Hayn R.Mechanism of CO and O3 sensing on WO3 surfaces : First principle study.Sens. Actuators B : Chem., doi :10.1016/j.snb.2011.08.018, 2011

Lombardo P., Ezzaidi Y., Hayn R. Spin polarized Kondo transport through a quantum dot connected to ferromagnetic leads.Physica E, doi :10.1016/j.physe.2011.08.022, 2011

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