Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Hollmann, N."'
Autor:
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., Nugroho, A. A., Liao, Y. F., Tsuei, K. -D., Hsieh, H. H., Lin, H. -J., Chen, C. T., Tjeng, L. H., Kasinathan, D.
Publikováno v:
Phys. Rev. B 96, 195112 (2017)
We investigated the electronic structure of the vacancy-ordered 4d-transition metal monoxide NbO (Nb3O3) using angle-integrated soft- and hard-x-ray photoelectron spectroscopy as well as ultra-violet angle-resolved photoelectron spectroscopy. We foun
Externí odkaz:
http://arxiv.org/abs/1709.06738
Autor:
Sundermann, M., Strigari, F., Willers, T., Weinen, J., Liao, Y. F., Tsuei, K. -D., Hiraoka, N., Ishii, H., Yamaoka, H., Mizuki, J., 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.
Publikováno v:
J. Electron Spectrosc. Relat. Phenom. 209, 1 (2016)
We present bulk-sensitive hard x-ray photoelectron spectroscopy (HAXPES) data of the Ce3d core levels and lifetime-reduced L edge x-ray absorption spectroscopy (XAS) in the partial fluorescence yield (PFY) mode of the CeMIn5 family with M = Co, Rh, a
Externí odkaz:
http://arxiv.org/abs/1601.03270
Autor:
Agrestini, S., Hu, Z., Kuo, C. -Y., Haverkort, 1 M. W., Ko, K. -T., Hollmann, N., Liu, Q., Pellegrin, E., Valvidares, M., Herrero-Martin, J., Gargiani, P., Gegenwart, P., Schneider, M., Esser, S., Tanaka, A., Komarek, A. C., Tjeng, L. H.
Publikováno v:
Phys. Rev. B 91, 075127 (2015)
We report a study of the local magnetism in thin films of SrRuO3 grown on (111) and (001) oriented SrTiO3 substrates using x-ray magnetic circular dichroism spectroscopy (XMCD) at the Ru-L2,3 edges. The application of the sum rules to the XMCD data g
Externí odkaz:
http://arxiv.org/abs/1501.06899
Autor:
Hollmann, N., Agrestini, S., Hu, Z., He, Z., Schmidt, M., Kuo, C. -Y., Rotter, M., Nugroho, A. A., Sessi, V., Tanaka, A., Brookes, N. B., Tjeng, L. H.
Publikováno v:
Phys. Rev. B 89, 201101(R) (2014)
We present a combined experimental and theoretical study on the local magnetism of the Co ions in the spin-chain compound CoV2O6, which crystallizes in two different allotropic phases, alpha- and gamma-CoV2O6. Using x-ray magnetic circular dichroism,
Externí odkaz:
http://arxiv.org/abs/1307.6690
Autor:
Hollmann, N., Hu, Z., Maignan, A., Günther, A., Jang, L. -Y., Tanaka, A., Lin, H. -J., Chen, C. T., Thalmeier, P., Tjeng, L. H.
We have investigated the electronic structure of CaCu3Ru4O12 and LaCu3Ru4O12 using soft x-ray photoelectron and absorption spectroscopy together with band structure and cluster configuration interaction calculations. We found the Cu to be in a robust
Externí odkaz:
http://arxiv.org/abs/1211.2984
Publikováno v:
Phys. Rev. B 83, 174435 (2011)
We study the magnetic susceptibility of mixed-valent La2-xSrxCoO4 single crystals in the doping range of 0.5<= x <= 0.8 for temperatures up to 1000 K. The magnetism below room temperature is described by paramagnetic Co2+ in the high-spin state and b
Externí odkaz:
http://arxiv.org/abs/1204.0730
Autor:
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., Rosner, H., Grin, Yu., Tjeng, L. H.
We present a combined experimental and theoretical study of the electronic structure of the intermetallic compound TiGePt by means of photoelectron spectroscopy, x-ray absorption spectroscopy and fullpotential band structure calculations. It was rece
Externí odkaz:
http://arxiv.org/abs/1203.2095
Autor:
Simonson, J. W., Yin, Z. P., Pezzoli, M., Guo, J., Liu, J., Post, K., Efimenko, A., Hollmann, N., Hu, Z., Lin, H. -J., Chen, C. T., Marques, C., Leyva, V., Smith, G., Lynn, J. W., Sun, L., Kotliar, G., Basov, D. N., Tjeng, L. H., Aronson, M. C.
Publikováno v:
Proc. Natl. Acad. Sci 109, E1815-E1819 (2012)
Widespread adoption of superconducting technologies requires the discovery of new materials with enhanced properties, especially higher superconducting transition temperatures T$_{c}$. The unexpected discovery of high T$_{c}$ superconductivity in cup
Externí odkaz:
http://arxiv.org/abs/1110.5938
Autor:
Wu, Hua, Chang, C. F., Schumann, O., Hu, Z., Cezar, J. C., Burnus, T., Hollmann, N., Brookes, N. B., Tanaka, A., Braden, M., Tjeng, L. H., Khomskii, D. I.
Publikováno v:
Phys. Rev. B 84, 155126 (2011)
The standard way to find the orbital occupation of Jahn-Teller (JT) ions is to use structural data, with the assumption of a one-to-one correspondence between the orbital occupation and the associated JT distortion, e.g. in O6 octahedron. We show, ho
Externí odkaz:
http://arxiv.org/abs/1104.3717
We have measured field and temperature dependent magnetization of YbInNi4 to elucidate the nature of the magnetic transition at 3 K. For small fields we find magnetic order as previously reported. In contrast to former reports, however, our high reso
Externí odkaz:
http://arxiv.org/abs/1101.4770