Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Schlappa, J."'
Autor:
Gerasimova, N., La Civita, D., Samoylova, L., Vannoni, M., Villanueva, R., Hickin, D., Carley, R., Gort, R., Van Kuiken, B., Miedema, P., Guyarder, L. Le, Mercadier, L., Mercurio, G., Schlappa, J., Teichman, M., Yaroslavtsev, A., Sinn, H., Scherz, A.
The SASE3 soft X-ray beamline at the European XFEL has been designed and built to provide experiments with pink or monochromatic beam in the photon energy range 250 eV - 3000 eV. Here, we focus on the monochromatic operation of the SASE3 beamline and
Externí odkaz:
http://arxiv.org/abs/2206.08729
Autor:
Turenne, D., Yaroslavtsev, A., Wang, X., Unikandanuni, V., Vaskivskyi, I., Schneider, M., Jal, E., Carley, R., Mercurio, G., Gort, R., Agarwal, N., Van Kuiken, B., Mercadier, L., Schlappa, J., Guyader, L. Le, Gerasimova, N., Teichmann, M., Lomidze, D., Castoldi, A., Potorochin, D., Mukkattukavil, D., Brock, J., Hagström, N. Z., Reid, A. H., Shen, X., Wang, X. J., Maldonado, P., Kvashnin, Y., Carva, K., Wang, J., Takahashi, Y. K., Fullerton, E. E., Eisebitt, S., Oppeneer, P. M., Molodtsov, S., Scherz, A., Bonetti, S., Iacocca, E., Dürr, H. A.
Magnetic nanoparticles such as FePt in the L10-phase are the bedrock of our current data storage technology. As the grains become smaller to keep up with technological demands, the superparamagnetic limit calls for materials with higher magneto-cryst
Externí odkaz:
http://arxiv.org/abs/2111.01649
Autor:
Guo, H., Li, Z. W., Chang, C. F., Hu, Z., Kuo, C. -Y., Perring, T. G., Schmidt, W., Piovano, A., Schmalzl, K., Walker, H. C., Lin, H. J., Chen, C. T., Blanco-Canosa, S., Schlappa, J., Schüßler-Langeheine, C., Hansmann, P., Khomskii, D. I., Tjeng, L. H., Komarek, A. C.
Publikováno v:
Sci. Rep. 10, 18012 (2020)
We have successfully grown centimeter-sized layered $R$SrNiO$_4$ single crystals under high oxygen pressures of 120 bar by the floating zone technique. This enabled us to perform neutron scattering experiments where we observe close to quarter-intege
Externí odkaz:
http://arxiv.org/abs/2007.03544
Autor:
Schlappa, J., Kumar, U., Zhou, K. J., Singh, S., Mourigal, M., Strocov, V. N., Revcolevschi, A., Patthey, L., Rønnow, H. M., Johnston, S., Schmitt, T.
One-dimensional (1D) magnetic insulators have attracted significant interest as a platform for studying emergent phenomena such as quasiparticle fractionalization and quantum criticality. The antiferromagnetic Heisenberg chain of spins-1/2 is an impo
Externí odkaz:
http://arxiv.org/abs/1802.09329
Autor:
Benckiser, E., Fels, L., Ghiringhelli, G., Sala, M. Moretti, Schmitt, T., Schlappa, J., Strocov, V. N., Mufti, N., Blake, G. R., Nugroho, A. A., Palstra, T. T. M., Haverkort, M. W., Wohlfeld, K., Grüninger, M.
Publikováno v:
Phys. Rev. B 88, 205115 (2013)
We report on the observation of orbital excitations in YVO3 by means of resonant inelastic x-ray scattering (RIXS) at energies across the vanadium L3 and oxygen K absorption edges. Due to the excellent experimental resolution we are able to resolve t
Externí odkaz:
http://arxiv.org/abs/1307.6027
Autor:
Schlappa, J., Wohlfeld, K., Zhou, K. J., Mourigal, M., Haverkort, M. W., Strocov, V. N., Hozoi, L., Monney, C., Nishimoto, S., Singh, S., Revcolevschi, A., Caux, J. -S., Patthey, L., Rønnow, H. M., Brink, J. van den, Schmitt, T.
Publikováno v:
Nature 485, 82-85 (03 May 2012)
As an elementary particle the electron carries spin \hbar/2 and charge e. When binding to the atomic nucleus it also acquires an angular momentum quantum number corresponding to the quantized atomic orbital it occupies (e.g., s, p or d). Even if elec
Externí odkaz:
http://arxiv.org/abs/1205.1954
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:
Hancock, J. N., Viennois, R., van der Marel, D., Rønnow, H. M., Guarise, M., Lin, P. -H., Grioni, M., Sala, M. Moretti, Ghiringhelli, G., Strocov, V. N., Schlappa, J., Schmitt, T.
Publikováno v:
Phys. Rev. B 82, 020513(R) (2010)
We present a detailed analysis of resonant inelastic scattering (RIXS) from Fe$_{1.087}$Te with unprecedented energy resolution. In contrast to the sharp peaks typically seen in insulating systems at the transition metal $L_3$ edge, we observe spectr
Externí odkaz:
http://arxiv.org/abs/1004.3759
Autor:
Schlappa, J., Chang, C. F., Schierle, E., Tanaka, A., Feyerherm, R., Hu, Z., Ott, H., Friedt, O., Dudzik, E., Hung, H. -H., Benomar, M., Braden, M., Tjeng, L. H., Schuessler-Langeheine, C.
We studied the stripe phase of La1.8Sr0.2NiO4 using neutron diffraction, resonant soft x-ray diffraction (RSXD) at the Ni L2,3 edges, and resonant x-ray diffraction (RXD) at the Ni K threshold. Differences in the q-space resolution of the different t
Externí odkaz:
http://arxiv.org/abs/0903.0994
Autor:
Schlappa, J., Schmitt, T., Vernay, F., Strocov, V. N., Ilakovac, V., Thielemann, B., Rønnow, H. M., Vanishri, S., Piazzalunga, A., Wang, X., Braicovich, L., Ghiringhelli, G., Marin, C., Mesot, J., Delley, B., Patthey, L.
Publikováno v:
Phys. Rev. Lett. 103, 047401 (2009)
We investigate magnetic excitations in the spin-ladder compound Sr$_{14}$Cu$_{24}$O$_{41}$ using high-resolution Cu $L_3$-edge Resonant Inelastic X-ray Scattering (RIXS). Our findings demonstrate that RIXS couples to collective spin excitations from
Externí odkaz:
http://arxiv.org/abs/0901.1331