Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Willers T"'
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:
Sundermann, M., Strigari, F., Willers, T., Winkler, H., Prokofiev, A., Ablett, J. M., Rueff, J. -P., Schmitz, D., Weschke, E., Sala, M. Moretti, Al-Zein, A., Tanaka, A., Haverkort, M. W., Kasinathan, D., Tjeng, L. H., Paschen, S., Severing, A.
Publikováno v:
Sci. Rep. 5, 17937 (2015)
Topological insulators form a novel state of matter that provides new opportunities to create unique quantum phenomena. While the materials used so far are based on semiconductors, recent theoretical studies predict that also strongly correlated syst
Externí odkaz:
http://arxiv.org/abs/1508.07129
Autor:
Willers, T., Strigari, F., Hu, Z., Sessi, V., Brookes, N. B., Bauer, E. D., Thompson, J. D., Sarrao, J. L., Tanaka, A., Wirth, S., Tjeng, L. H., Severing, A.
Publikováno v:
Proc. Natl. Acad. Sci. U.S.A. 112 (8), 2384 (2015)
The 4f crystal-electric field ground state wave functions of CeRh(1-x)Ir(x)In5 have been determined by linear polarization dependent soft x-ray absorption spectroscopy (XAS) at T = 8 K. We demonstrate that these ground state wave functions correlate
Externí odkaz:
http://arxiv.org/abs/1309.3409
Autor:
Haupricht, T., Weinen, J., Tanaka, A., Gierth, R., Altendorf, S. G., Chin, Y. -Y., Willers, T., Gegner, J., Fujiwara, H., Strigari, F., Hendricks, A., Regesch, D., Hu, Z., Wu, Hua, Tsuei, K. -D., Liao, Y. F., Hsieh, H. H., Lin, H. -J., Chen, C. T., Tjeng, L. H.
We report on a comparative study of the valence band electronic structure of NiO as bulk material and of NiO as impurity in MgO. From the impurity we have been able to determine reliably the parameters which describe the local correlations, thereby e
Externí odkaz:
http://arxiv.org/abs/1210.6675
Autor:
Strigari, F., Willers, T., Muro, Y., Yutani, K., Takabatake, T., Hu, Z., Chin, Y. -Y., Agrestini, S., Lin, H. -J., Chen, C. T., Tanaka, A., Haverkort, M. W., Tjeng, L. H., Severing, A.
Publikováno v:
Phys. Rev. B 86, 081105(R) (2012)
We have succeeded in establishing the crystal-field ground state of CeRu2Al10, an orthorhombic intermetallic compound recently identified as a Kondo insulator. Using polarization dependent soft x-ray absorption spectroscopy at the Ce M4,5 edges, toge
Externí odkaz:
http://arxiv.org/abs/1208.2842
Autor:
Willers, T., Strigari, F., Hiraoka, N., Cai, Y. Q., Haverkort, M. W., Tsuei, K. -D., Liao, Y. F., Seiro, S., Geibel, C., Steglich, F., Tjeng, L. H., Severing, A.
Publikováno v:
Phys. Rev. Lett. 109, 046401 (2012)
We have successfully determined the hitherto unknown sign of the B44 Stevens crystal-field parameter of the tetragonal heavy-fermion compound CeCu2Si2 using vector q dependent non-resonant inelastic x-ray scattering (NIXS) experiments at the cerium N
Externí odkaz:
http://arxiv.org/abs/1205.1915
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
Autor:
Chang, C. F., Schlappa, J., Buchholz, M., Tanaka, A., Schierle, E., Schmitz, D., Ott, H., Sutarto, R., Willers, T., Metcalf, P., Tjeng, L. H., Schuessler-Langeheine, C.
We studied the (001/2) diffraction peak in the low-temperature phase of magnetite (Fe3O4) using resonant soft x-ray diffraction (RSXD) at the Fe-L2,3 and O-K resonance. We studied both molecular-beam-epitaxy (MBE) grown thin films and in-situ cleaved
Externí odkaz:
http://arxiv.org/abs/1101.2548
Autor:
Severing, A., Givord, F., Boucherle, J. -X., Willers, T., Rotter, M., Fisk, Z., Bianchi, A., Fernandez-Diaz, M. T., Stunault, A., Rainford, B. D., Taylor, J., Goremychkin, E.
The magnetic form factor of YbInNi4 has been determined via the flipping ratios R with polarized neutron diffraction and the scattering function S(Q,w) was measured in an inelastic neutron scattering experiment. Both experiments were performed with t
Externí odkaz:
http://arxiv.org/abs/1012.4937
Autor:
Hollmann, N., Hu, Z., Wu, Hua, Valldor, M., Qureshi, N., Willers, T., Chin, Y. -Y., Cezar, J. C., Tanaka, A., Brookes, N. B., Tjeng, L. H.
CaBaFe4O7 is a mixed-valent transition metal oxide having both Fe2+ and Fe3+ ions in tetrahedral coordination. Here we characterize its magnetic properties by magnetization measurements and investigate its local electronic structure using soft x-ray
Externí odkaz:
http://arxiv.org/abs/1011.4818