Publications - Neumann

S. Khanra, K. Kuepper, T. Weyhermüller, M. Prinz, M. Raekers, S. Voget, A.V. Postnikov, F.M.F. de Groot, S.J. George, M. Coldea, M. Neumann, P. Chaudhuri
Inorg. Chem. 47, 4605 - 4617 (2008)
"Star-Shaped Molecule of Mn^II₄O₆ Core with an S_t = 10 High Spin State. A Theoretical and Experimental Study with XPS, XMCD and Other Magnetic Methods"

V. Simon, O. Ponta, S. Simon, D.A.Udvar, M. Neumann
phys. stat. sol.(a) 205, 1139 -1143 (2008)
"The effect of gadolinium addition on the surface structure of Bi₂O₃-GeO₂ glasses and vitroceramics"

L.-H. Bi, S.S. Mal, N.H. Nsouli, M.H. Dickman, U. Kortz, S. Nellutla, N.S. Dalal, M. Prinz, G. Hofmann, M. Neumann
J. Clust. Sci. (2008) 19, 259 – 273 (2008)
"Mixed-Valence 24-Vanadophosphate Decorated with Six Ru^II(dmso)₃ Groups: [{Ru^II₃(dmso)₉PV^V₁₁V^IVRu^IIIO₃₇(OH)₃}₂]^8-"

E. Burzo, I. Balasz, I.G. Deac, M. Neumann, R. Tetean
Physica B403, 1601 – 1602 (2008)
"Physical properties of La_1-xPb_xMnO₃ perovskites"

C. Lazar, E. Burzo, M. Neumann
J. Optoelectron. Adv. M.10, 780 - 782 (2008)
"XPS study of RNi₄B compounds, where R = Nd, Tb, Dy, Ho and Er"

I. Balasz, E. Burzo, M. Neumann
J. Optoelectron. Adv. M.10, 857 – 859 (2008)
"XPS and resistivity studies on Y-Ca-Mn-Al perovskites"

S. Rada, M. Culea, M. Neumann, E. Culea
Chem. Phys. Lett. 460, 196 – 199 (2008)
"Structural role of europium ions in lead-borate glasses inferred from spectroscopic and DFT studies"

K. Kuepper, M. Raekers, C. Taubitz, H. Hesse, M. Neumann, A.T. Young, C. Piamonteze, F. Bondino, K.C. Prince
J. Appl. Phys. 104, 036103 (2008)
"Fe valence state of Sr₂FeMoO₆ probed by x-ray absorption spectroscopy: The sample age matters"

L. Pop, E. Culea, M. Bosca, M. Neumann, R. Muntean, P. Pascuta, S. Rada
J. Optoelectron. Adv. M.10, 619-622 (2008)
"X-ray photoelectron spectroscopic studies of lead-bismuthate glasses with rare earths"

S. Rada, E. Culea, M. Bosca, M. Culea, P. Pascuta, M. Neumann
J. Optoelectron. Adv. M.10, 2316-2318 (2008)
"Effect of the introduction of gadolinium ions in Boro-tellurite glasses"

V. Simon, O. Ponta, S. Simon, M. Neumann
J. Optoelectron. Adv. M.10, 2325-2327 (2008)
"Atomic environment changes induced by rare earths addition to heavy metal glasses"

A.E. Raj, V. Senthilkumar, V. Swaminathan, J. Wollschläger, M. Suendorf, M. Neumann, M. Jayachandran, C. Sanjeeviraja
Thin Solid Films 517, 510 - 516 (2008)
"Studies on Transparent Spinel Magnesium Indium Oxide Thin Films Prepared by Spray Pyrolisis"

G. Abrasonis, A.C. Scheinost, S. Zhou, R. Torres, R. Gago, I. Ignacio, K. Kuepper, K. Potzger, M. Krause,A. Kolitsch, W. Möller, S. Bartkowski, M. Neumann, R. Gareev
J. Phys. Chem. C112, 12628 – 12637 (2008)
"X-ray spectroscopic and magnetic investigation of C:Ni nanocomposite films grown by ion beam co-sputtering"

V. Rednic, L. Rednic, M. Coldea, V. Pop, M. Neumann, R. Pacurariu, A.R. Tunyagi
Central European J. Physics 6, 434 – 439 (2008)
"X-ray photoelectron spectroscopy and magnetism of Mn_1-xAl_xNi₃ alloys"

V.R. Galakhov, M.A. Melkozerova, T.P. Chupakhina, G.V. Bazuev, M. Raekers, M. Neumann, C.L. Molodtsov
Bull. Russ. Acad. Sci: Physics 72, 1403 – 1405 (2008), Izvestiya RAN, seriya fiz. 72, 1483 – 1485 (2008)
"Valence states of 3d ions determined by X ray spectroscopy"

S. Rada, P. Pascuta, M. Bosca, M. Culea, V. Rus, M. Neumann, E. Culea
J. Optoelectron. Adv. M. 10, 3221-3224 (2008)
"Spectroscopic and quantum chemical investigation of the boro-bismuthate glass structure"

V.R. Galkhov, M.C. Falub, K. Kuepper, M. Neumann
J. Struct. Chem. 49, S54 – S58 (2008)
"X-ray Spectroscopy of Lanthanum Manganites: Nature of Doping Holes, Correlation Effects and Orbital Ordering"

V.R. Galakhov, M. Neumann, D.G. Kellerman
Appl. Phys. A94, 497 – 500 (2009)
"Electronic structure of defective lithium cobaltites Li_xCoO₂"

M. Neumann, K. Kuepper
Surf. Sci. 603, 1613 – 1621 (2009)
"X-ray spectroscopic techniques are powerful tools for electronic structure investigations of transition metal oxides"

M. Prinz, M. Raekers, M. Neumann, K. Kuepper, S. Khanra, T. Weyhermüller, P. Chaudhuri
Z. Phys. Chem. 223, 145 – 155 (2009)
"Synthesis, structure and valency verification of a Mn₆^IIIO₂-cluster"

M. Raekers, K. Kuepper, S. Bartkowski, M. Prinz, A. V. Postnikov, K. Potzger, S. Zhou, A. Arulraj, N. Stüßer, R. Uecker, W. L. Yang, M. Neumann
Phys. Rev. B79, 125114 (2009)
"Electronic and magnetic structure of RScO₃ (R=Sm,Gd,Dy) from x-ray spectroscopies and first-principles calculations"

C. Taubitz, K. Kuepper, M. Raekers, V.R. Galakhov, V. Felea, V. Tsurkan, M. Neumann
phys. stat. sol. B 246, 1470 - 1475 (2009)
"Reinvestigation of the Fe, Cu and Cr valences in (FeCu)Cr₂S₄ spinels"

S. Pintea, V. Rednic, P. Marginean, N. Aldea, Hu Tiandou, Z. Wu, M. Neumann, F. Matei
Superlattices and Microstructures 46, 130 – 136 (2009)
"Crystalline and electronic structure of Ni nanoclusters supported on Al₂O₃ and Cr₂O₃ investigated by XRD, XAS and XPS methods"

N. Aldea, V. Rednic, S. Pintea, P. Marnean, B. Barz, A. Gluhoi, B.E. Nieuwenhuys, M. Neumann, X. Yaning, F. Matei
Superlattices and Microstructures 46, 141 – 148 (2009)
"Local, global and electronic structure of supported gold nanoclusters determined by EXAFS, XRD and XPS methods"

R. Pacurariu, V. Rednic, M. Coldea, D. Benea, V. Pop, O. Isnard, M. Neumann
phys. stat. sol. (b) 246, 50 – 55 (2009)
"Effects of substitution of Ni by Sb in MnNi"

T. Weisemoeller, F. Bertram, S. Gevers, A. Greuling, C. Deiter, H. Tobergte, M. Neumann, J. Wollschlaeger, A. Giussani, T. Schroeder
J.Appl. Phys. 105, 124108 (2009)
"Postdeposition annealing induced transition from hexagonal Pr₂O₃ to cubic PrO₂ films on Si(111)"

V. Simon, S. Cavalu, S. Simon, H. Mocuta, E. Vanea, M. Prinz, M. Neumann
Solid State Ionics 180, 764 – 769 (2009)
"Surface functionalisation of sol-gel derived aluminosilicates in simulated body fluids"

V. Rednic, M. Coldea, S.K. Mendiratta, M. Valente, V. Pop, M. Neumann, L. Rednic
J. Magn. Magn. Mat. 321, 3415 – 3421 (2009)
"X-ray photoelectron spectroscopy and magnetism of Mn_1-xAl_xNi alloys"

H. Schäfer, P. Ptacek, K. Hickmann, M. Prinz, M. Neumann, M. Haase
Russ. J. Inorg. Chem. 54, 1914 – 1920 (2009)
"Investigation of KYF₄:Yb, Er//KYF₄ Nanocrystals – Mechanism of the KYF₄ - Formation"

V. Simon, D. Lazar, R.V.F. Turcu, H. Mocuta, K. Magyari, M. Prinz, M. Neumann, S. Simon
Materials Science and Engineering B165, 247 - 251 (2009)
"Atomic environment in sol-gel derived nanocrystalline hydroxyapatite"

E.Z. Kurmaev, J.Mcleod, A. Buling, N.A. Skorikov, A. Moewes, M. Neumann, M.A. Korotin, Yu.A. Izyumov, P. Canfield
Phys. Rev. B80, 054508 (2009)
"The electronic structure of CaFe₂As₂: DFT calculations, resonant inelastic x-ray scattering and x-ray photoelectron spectra"

N.H. Nsouli, M. Prinz, N. Damnik, M. Neumann, E. Talik, U. Kortz
Eur. J. Inorg. Chem. 2009, 5096 – 5101 (2009)
"Dimeric Nickel Containing Tungstogermanate [{β-GeNi₂W₁₀O₃₆(OH)₂(H₂O)}₂]^12-"

K. Kuepper, M. Raekers, C. Taubitz, M. Prinz, C. Derks, M. Neumann, A.V. Postnikov, F.M.F. de Groot, C. Piamonteze, D. Prabakharan, S.J. Blundell,
Phys. Rev. B 80, 220409(R) (2009)
"Charge order, enhanced orbital moment, and absence of magnetic frustration in layered muliferroic LuFe₂O₄"