Publications of N. Hollmann

Efimenko, A. K.; Hollmann, N.; Hoefer, K.; Weinen, J.; Takegami, D.; Wolff, K. K.; Altendorf, S. G.; Hu, Z.; Rata, A. D.; Komarek, A. C. et al.; Nugroho, A. A.; Liao, Y. F.; Tsuei, K.-D.; Hsieh, H. H.; Lin, H.-J.; Chen, C. T.; Tjeng, L. H.; Kasinathan, D.: Electronic signature of the vacancy ordering in NbO (Nb₃O₃). Physical Review B 96 (19), 195112, pp. 1 - 7 (2017)

Sundermann, M.; Strigari, F.; Willers, T.; Weinen, J.; Liao, Y. F.; Tsuei, K.-D.; Hiraoka, N.; Ishii, H.; Yamaoka, H.; Mizuki, J. et al.; Zekko, Y.; Bauer, E. D.; Sarrao, J. L.; Thompson, J. D.; Lejay, P.; Muro, Y.; Yutani, K.; Takabatake, T.; Tanaka, A.; Hollmann, N.; Tjeng, L. H.; Severing, A.: Quantitative study of the f occupation in CeMIn₅ and other cerium compounds with hard X-rays. Journal of Electron Spectroscopy and Related Phenomena 209, pp. 1 - 8 (2016)

Agrestini, S.; Hu, Z.; Kuo, C.-Y.; Haverkort, M. W.; Ko, K.-T.; Hollmann, N.; Liu, Q.; Pellegrin, E.; Valvidares, M.; Herrero-Martin, J. et al.; Gargiani, P.; Gegenwart, P.; Schneider, M.; Esser, S.; Tanaka, A.; Komarek, A. C.; Tjeng, L. H.: Electronic and spin states of SrRuO₃ thin films: An x-ray magnetic circular dichroism study. Physical Review B 91 (7), 075127, pp. 1 - 5 (2015)

Istomin, S. Y.; Tyablikov, O. A.; Kazakov, S. M.; Antipov, E. V.; Kurbakov, A. I.; Tsirlin, A. A.; Hollmann, N.; Chin, Y. Y.; Lin, H.-J.; Chen, C. T. et al.; Tanaka, A.; Tjeng, L. H.; Hu, Z.: An unusual high-spin ground state of Co3+ in octahedral coordination in brownmillerite-type cobalt oxide. Dalton Transactions 44 (23), pp. 10708 - 10713 (2015)

Altendorf, S. G.; Reisner, A.; Chang, C. F.; Hollmann, N.; Rata, A. D.; Tjeng, L. H.: Growth and characterization of Sc-doped EuO thin films. Applied Physics Letters 104 (5), 052403, pp. 1 - 4 (2014)

Fecher, G. H.; Ebke, D.; Ouardi, S.; Agrestini, S.; Kuo, C.-Y.; Hollmann, N.; Hu, Z.; Gloskovskii, A.; Yakhou, F.; Brookes, N. B. et al.; Felser, C.: STATE OF Co AND Mn IN HALF-METALLIC FERROMAGNET Co₂MnSi EXPLORED BY MAGNETIC CIRCULAR DICHROISM IN HARD X-RAY PHOTOELECTRON EMISSION AND SOFT X-RAY ABSORPTION SPECTROSCOPIES. SPIN 4 (4), 1440017, pp. 1 - 16 (2014)

Hollmann, N.; Agrestini, S.; Hu, Z.; He, Z.; Schmidt, M.; Kuo, C.-Y.; Rotter, M.; Nugroho, A. A.; Sessi, V.; Tanaka, A. et al.; Brookes, N. B.; Tjeng, L. H.: Spectroscopic evidence for exceptionally high orbital moment induced by local distortions in α-CoV₂O₆. Physical Review B 89 (20), 201101, pp. 1 - 6 (2014)

Hollmann, N.; Hu, Z.; Maignan, A.; Günther, A.; Jang, L.-Y.; Tanaka, A.; Lin, H.-J.; Chen, C. T.; Thalmeier, P.; Tjeng, L. H.: Correlation effects in CaCu₃Ru₄O₁₂. Physical Review B 87 (15), 155122, pp. 155122-1 - 155122-8 (2013)

Altendorf, S. G.; Hollmann, N.; Sutarto, R.; Caspers, C.; Wicks, R. C.; Chin, Y.-Y.; Hu, Z.; Kierspel, H.; Elfimov, I. S.; Hsieh, H. H. et al.; Lin, H.-J.-; Chen, C. T.; Tjeng, L. H.: Spectroscopic observation of strain-assisted T_C enhancement in EuO upon Gd doping. Physical Review B 85 (8), 081201, pp. 081201-1 - 081201-4 (2012)

Gegner, J.; Gamza, M.; Ackerbauer, S.-V.; Hollmann, N.; Hu, Z.; Hsieh, H.-H.; Lin, H.-J.; Chen, C. T.; Ormeci, A.; Leithe-Jasper, A. et al.; Rosner, H.; Grin, Y.; Tjeng, L. H.: Insulator-metal transition in TiGePt: A combined photoelectron spectroscopy, x-ray absorption spectroscopy, and band structure study. Physical Review B 85 (23), 235106, pp. 1 - 7 (2012)

Simonson, J. W.; Yin, Z. P.; Pezzoli, M.; Guo, J.; Liu, J.; Post, K.; Efimenko, A.; Hollmann, N.; Hu, Z.; Lin, H.-J. et al.; Chen, C.-T.; Marques, C.; Leyva, V.; Smith, G.; Lynn, J. W...; Sun, L. L.; Kotliar, G.; Basov, D. N.; Tjeng, L. H.; Aronson, M. C.: From antiferromagnetic insulator to correlated metal in pressurized and doped LaMnPO. Proceedings of the National Academy of Sciences of the United States of America 109 (27), pp. E1815 - E1819 (2012)

Willers, T.; Adroja, D. T.; Rainford, B. D.; Hu, Z.; Hollmann, N.; Körner, P. O.; Chin, Y.-Y.; Schmitz, D.; Hsieh, H. H.; Lin, H.-J. et al.; Chen, C. T.; Bauer, E. D.; Sarrao, J. L.; McClellan, K. J.; Byler, D.; Geibel, C.; Steglich, F.; Aoki, H.; Lejay, P.; Tanaka, A.; Tjeng, L. H.; Severing, A.: Spectroscopic determination of crystal-field levels in CeRh₂Si₂ and CeRu₂Si₂ and of the 4f⁰ contributions in CeM₂Si₂ (M=Cu, Ru, Rh, Pd, and Au). Physical Review B 85 (3), 035117, pp. 035117-1 - 035117-8 (2012)

Hollmann, N.; Valldor, M.; Wu, H.; Hu, Z.; Qureshi, N.; Willers, T.; Chin, Y. Y.; Cezar, J. C.; Tanaka, A.; Brookes, N. B. et al.; Tjeng, L. H.: Orbital occupation and magnetism of tetrahedrally coordinated iron in CaBaFe₄O₇. Physical Review B 83 (18), 180405, pp. 180405-1 - 180405-4 (2011)

Willers, T.; Cezar, J. C.; Brookes, N. B.; Hu, Z.; Strigari, F.; Körner, P.; Hollmann, N.; Schmitz, D.; Bianchi, A.; Fisk, Z. et al.; Tanaka, A.; Tjeng, L. H.; Severing, A.: Magnetic Field Induced Orbital Polarization in Cubic YbInNi₄: Determining the Quartet Ground State Using X-Ray Linear Dichroism. Physical Review Letters 107 (23), 236402, pp. 236402-1 - 236402-5 (2011)

Wu, H.; Chang, C. F.; Schumann, O.; Hu, Z.; Cezar, J. C.; Burnus, T.; Hollmann, N.; Brookes, N. B.; Tanaka, A.; Braden, M. et al.; Tjeng, L. H.; Khomskii, D. I.: Orbital order in La_0.5Sr_1.5MnO₄: Beyond a common local Jahn-Teller picture. Physical Review B 84 (15), 155126, pp. 155126-1 - 155126-5 (2011)

Hollmann, N.; Hu, Z.; Willers, T.; Bohatý, L.; Becker, P.; Tanaka, A.; Hsieh, H. H.; Lin, H.-J.; Chen, C. T.; Tjeng, L. H.: Local symmetry and magnetic anisotropy in multiferroic MnWO₄ and antiferromagnetic CoWO₄ studied by soft x-ray absorption spectroscopy. Physical Review B 82 (18), 184429, pp. 184429-1 - 184429-6 (2010)

Taubitz, C.; Hu, Z.; Hollmann, N.; Chin, Y.-Y.; Kuepper, K.; Tsurkan, V.; Lin, H.-J.; Chen, C. T.; Tjeng, L. H.; Neumann, M.: Fe valence state at the surface of the Fe_0.5Cu_0.5Cr₂S₄ spinel. Physica Status Solidi RRL 4 (11), pp. 338 - 339 (2010)

Willers, T.; Hu, Z.; Hollmann, N.; Körner, P. O.; Gegner, J.; Burnus, T.; Fujiwara, H.; Tanaka, A.; Schmitz, D.; Hsieh, H. H. et al.; Lin, H.-J.; Chen, C. T.; Bauer, E. D.; Sarrao, J. L.; Goremychkin, E.; Koza, M.; Tjeng, L. H.; Severing, A.: Crystal-field and Kondo-scale investigations of CeMIn₅ (M = Co, Ir, and Rh): A combined x-ray absorption and inelastic neutron scattering study. Physical Review B 81 (19), 195114, pp. 195114-1 - 195114-10 (2010)

Hollmann, N.: Orbital occupation and local magnetism of novel transition metal oxides. Dissertation, Universität, Köln (2011)