Výsledky vyhledávání

Report

An ultra-high vacuum scanning tunneling microscope operating at sub-Kelvin temperatures and high magnetic fields for spin-resolved measurements

Autor: Salazar, C., Baumann, D., Hänke, T., Scheffler, M., Kühne, T., Kaiser, M., Voigtländer, R., Lindackers, D., Büchner, B., Hess, C.

Publikováno v: Rev. Sci. Inst. 89, 065104 (2018)

We present the construction and performance of an ultra-low temperature scanning tunneling microscope (STM), working in ultra-high vacuum conditions (UHV) and in high magnetic fields up to 9 T. The cryogenic environment of the STM is generated by a s

Externí odkaz: http://arxiv.org/abs/1805.06273

Zobrazit plný text záznamu

Report

Structural study of monolayer cobalt phthalocyanine adsorbed on graphite

Autor: Scheffler, M., Smykalla, L., Baumann, D., Schlegel, R., Hänke, T., Toader, M., Büchner, B., Hietschold, M., Hess, C.

Publikováno v: Surface Science 608 (2013) 55-60

We present microscopic investigations on the two-dimensional arrangement of cobalt phthalocyanine molecules on a graphite (HOPG) substrate in the low coverage regime. The initial growth and ordering of molecular layers is revealed in high resolution

Externí odkaz: http://arxiv.org/abs/1407.1728

Zobrazit plný text záznamu

Report

Probing the Unconventional Superconducting State of LiFeAs by Quasiparticle Interference

Autor: Hänke, T., Sykora, S., Schlegel, R., Baumann, D., Harnagea, L., Wurmehl, S., Daghofer, M., Büchner, B., Brink, J. van den, Hess, C.

Publikováno v: Phys. Rev. Lett. 108, 127001 (2012)

A crucial step in revealing the nature of unconventional superconductivity is to investigate the symmetry of the superconducting order parameter. Scanning tunneling spectroscopy has proven a powerful technique to probe this symmetry by measuring the

Externí odkaz: http://arxiv.org/abs/1106.4217

Zobrazit plný text záznamu

Report

Electronic confinement and ordering instabilities in colossal magnetoresistive bilayer manganites

Autor: Trinckauf, J., Hänke, T., Zabolotnyy, V., Ritschel, T., Apostu, M. O., Suryanarayanan, R., Revcolevschi, A., Koepernik, K., Kim, T. K., Zimmermann, M. v., Borisenko, S. V., Knupfer, M., Büchner, B., Geck, J.

Publikováno v: Phys. Rev. Lett. 108, 016403 (2012)

We present angle-resolved photoemission studies of (La1-zPrz)2-2xSr1+2xMn2O7 with x=0.4 and z=0.1,0.2 and 0.4 along with density functional theory calculations and x-ray scattering data. Our results show that the bilayer splitting in the ferromagneti

Externí odkaz: http://arxiv.org/abs/1105.5468

Zobrazit plný text záznamu

Report

Chiral honeycomb superstructure, parquet nesting, and Dirac cone formation in Cu-intercalated 2H-TaSe2

Autor: Kordyuk, A. A., Evtushinsky, D. V., Zabolotnyy, V. B., Haenke, T., Hess, C., Buechner, B., Yaresko, A. N., Berger, H., Borisenko, S. V.

Powered by effective parquet nesting a commensurate chiral honeycomb superstructure in a trigonally packed transition metal dichalcogenide TaSe$_2$ results in a Dirac cone anomaly in one-particle excitation spectrum. However, the formation of the wel

Externí odkaz: http://arxiv.org/abs/1003.1976

Zobrazit plný text záznamu

Report

Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La_0.5Sr_1.5MnO_4

Autor: Evtushinsky, D. V., Inosov, D. S., Urbanik, G., Zabolotnyy, V. B., Schuster, R., Sass, P., Haenke, T., Hess, C., Buechner, B., Follath, R., Reutler, P., Revcolevschi, A., Kordyuk, A. A., Borisenko, S. V.

Publikováno v: Phys. Rev. Lett. 105, 147201 (2010)

Density waves are inherent to the phase diagrams of materials that exhibit unusual, and sometimes extraordinarily useful properties, such as superconductivity and colossal magnetoresistance. While the pure charge density waves (CDW) are well describe

Externí odkaz: http://arxiv.org/abs/0810.3667

Zobrazit plný text záznamu