Search Results - "Hansmann, P."

Mott insulators with boundary zeros by Wagner, N., Crippa, L., Amaricci, A., Hansmann, P., Klett, M., König, E. J., Schäfer, T., Sante, D. Di, Cano, J., Millis, A. J., Georges, A., Sangiovanni, G.

“…The topological classification of electronic band structures is based on symmetry properties of Bloch eigenstates of single-particle Hamiltonians. In parallel,…”
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Bands, resonances, edge singularities and excitons in core level spectroscopy investigated within the dynamical mean-field theory by Haverkort, M. W., Sangiovanni, G., Hansmann, P., Toschi, A., Lu, Y., Macke, S.

“…Using a recently developed impurity solver we exemplify how dynamical mean-field theory captures band excitations, resonances, edge singularities and excitons…”
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Turning a nickelate Fermi surface into a cupratelike one through heterostructuring by Hansmann, P, Yang, Xiaoping, Toschi, A, Khaliullin, G, Andersen, O K, Held, K

“…Using the local density approximation and its combination with dynamical mean-field theory, we show that electronic correlations induce a single-sheet,…”
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Dichotomy between large local and small ordered magnetic moments in iron-based superconductors by Hansmann, P, Arita, R, Toschi, A, Sakai, S, Sangiovanni, G, Held, K

“…We study a four-band model for iron-based superconductors within the local density approximation combined with dynamical mean-field theory (LDA+DMFT). This…”
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Long-range Coulomb interactions in surface systems: a first-principles description within self-consistently combined GW and dynamical mean-field theory by Hansmann, P, Ayral, T, Vaugier, L, Werner, P, Biermann, S

“…Systems of adatoms on semiconductor surfaces display competing ground states and exotic spectral properties typical of two-dimensional correlated electron…”
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Quantum dynamical screening of the local magnetic moment in Fe-based superconductors by Toschi, A., Arita, R., Hansmann, P., Sangiovanni, G., Held, K.

“…We have calculated the local magnetic susceptibility of one of the prototypical Fe-based superconductors (LaFeAsO) by means of the local density…”
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Importance of d–p Coulomb interaction for high Tc cuprates and other oxides by Hansmann, P, Parragh, N, Toschi, A, Sangiovanni, G, Held, K

“…Current theoretical studies of electronic correlations in transition metal oxides typically only account for the local repulsion between d-electrons even if…”
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Distinct spin and orbital dynamics in Sr2RuO4 by Suzuki, H., Wang, L., Bertinshaw, J., Strand, H. U. R., Käser, S., Krautloher, M., Yang, Z., Wentzell, N., Parcollet, O., Jerzembeck, F., Kikugawa, N., Mackenzie, A. P., Georges, A., Hansmann, P., Gretarsson, H., Keimer, B.

“…The unconventional superconductor Sr 2 RuO 4 has long served as a benchmark for theories of correlated-electron materials. The determination of the…”
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Unique Crystal Structure of Ca2RuO4 in the Current Stabilized Semimetallic State by Bertinshaw, J, Gurung, N, Jorba, P, Liu, H, Schmid, M, Mantadakis, D T, Daghofer, M, Krautloher, M, Jain, A, Ryu, G H, Fabelo, O, Hansmann, P, Khaliullin, G, Pfleiderer, C, Keimer, B, Kim, B J

“…The electric-current stabilized semimetallic state in the quasi-two-dimensional Mott insulator Ca2RuO4 exhibits an exceptionally strong diamagnetism. Through a…”
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Importance of d-p Coulomb interaction for high T C cuprates and other oxides by Hansmann, P, Parragh, N, Toschi, A, Sangiovanni, G, Held, K

“…Current theoretical studies of electronic correlations in transition metal oxides typically only account for the local repulsion between d-electrons even if…”
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Theoretical prediction and spectroscopic fingerprints of an orbital transition in CeCu2Si2 by Pourovskii, L V, Hansmann, P, Ferrero, M, Georges, A

“…We show that the heavy-fermion compound CeCu2Si2 undergoes a transition between two regimes dominated by different crystal-field states. At low pressure P and…”
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Complex magnetic order in nickelate slabs by Hepting, M., Green, R. J., Zhong, Z., Bluschke, M., Suyolcu, Y. E., Macke, S., Frano, A., Catalano, S., Gibert, M., Sutarto, R., He, F., Cristiani, G., Logvenov, G., Wang, Y., van Aken, P. A., Hansmann, P., Le Tacon, M., Triscone, J.-M., Sawatzky, G. A., Keimer, B., Benckiser, E.

“…Magnetic ordering phenomena have a profound influence on the macroscopic properties of correlated-electron materials, but their realistic prediction remains a…”
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Uncertainty principle for experimental measurements: Fast versus slow probes by Hansmann, P., Ayral, T., Tejeda, A., Biermann, S.

“…The result of a physical measurement depends on the time scale of the experimental probe. In solid-state systems, this simple quantum mechanical principle has…”
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Mott-Hubbard transition in V2O3 revisited by Hansmann, P., Toschi, A., Sangiovanni, G., Saha-Dasgupta, T., Lupi, S., Marsi, M., Held, K.

“…The isostructural metal‐insulator transition in Cr‐doped V2O3 is the textbook example of a Mott–Hubbard transition between a paramagnetic metal (PM) and a…”
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A microscopic view on the Mott transition in chromium-doped V2O3 by Lupi, S., Baldassarre, L., Mansart, B., Perucchi, A., Barinov, A., Dudin, P., Papalazarou, E., Rodolakis, F., Rueff, J. -P., Itié, J. -P., Ravy, S., Nicoletti, D., Postorino, P., Hansmann, P., Parragh, N., Toschi, A., Saha-Dasgupta, T., Andersen, O. K., Sangiovanni, G., Held, K., Marsi, M.

“…V 2 O 3 is the prototype system for the Mott transition, one of the most fundamental phenomena of electronic correlation. Temperature, doping or pressure…”
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Electronic response of a Mott insulator at a current-induced insulator-to-metal transition by Suen, C. T., Marković, I., Zonno, M., Heinsdorf, N., Zhdanovich, S., Jo, N. H., Schmid, M., Hansmann, P., Puphal, P., Fürsich, K., Smit, S., Au-Yeung, C., Zimmermann, V., Zwartsenberg, B., Krautloher, M., Elfimov, I. S., Koch, R., Gorovikov, S., Jozwiak, C., Bostwick, A., Franz, M., Rotenberg, Eli, Keimer, B., Damascelli, A.

“…The Mott insulator Ca 2 RuO 4 exhibits an insulator-to-metal transition induced by d.c. current. Despite the thorough examination of the structural changes…”
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Effective crystal field and Fermi surface topology: A comparison of d- and dp-orbital models by Parragh, N, Sangiovanni, G, Hansmann, P, Hummel, S, Held, K, Toschi, A

“…The effective crystal field in multiorbital correlated materials can be either enhanced or reduced by electronic correlations with crucial consequences for the…”
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Magnetic correlations in infinite-layer nickelates: An experimental and theoretical multimethod study by Ortiz, R. A., Puphal, P., Klett, M., Hotz, F., Kremer, R. K., Trepka, H., Hemmida, M., von Nidda, H.-A. Krug, Isobe, M., Khasanov, R., Luetkens, H., Hansmann, P., Keimer, B., Schäfer, T., Hepting, M.

“…We report a comprehensive study of magnetic correlations in LaNiO_{2}, a parent compound of the recently discovered family of infinite-layer (IL) nickelate…”
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A new benchmark of soft X-ray transition energies of Ne , CO 2 , and SF 6 : paving a pathway towards ppm accuracy by Stierhof, J, Kühn, S, Winter, M, Micke, P, Steinbrügge, R, Shah, C, Hell, N, Bissinger, M, Hirsch, M, Ballhausen, R, Lang, M, Gräfe, C, Wipf, S, Cumbee, R, Betancourt-Martinez, G L, Park, S, Niskanen, J, Chung, M, Porter, F S, Stöhlker, T, Pfeifer, T, Brown, G V, Bernitt, S, Hansmann, P, Wilms, J, Crepso López-Urrutia, J R, Leutenegger, M A

“…A key requirement for the correct interpretation of high-resolution X-ray spectra is that transition energies are known with high accuracy and precision. We…”
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A new benchmark of soft X-ray transition energies of Ne, CO2, and SF6: paving a pathway towards ppm accuracy by Stierhof, J., Kühn, S., Winter, M., Micke, P., Steinbrügge, R., Shah, C., Hell, N., Bissinger, M., Hirsch, M., Ballhausen, R., Lang, M., Gräfe, C., Wipf, S., Cumbee, R., Betancourt-Martinez, G. L., Park, S., Niskanen, J., Chung, M., Porter, F. S., Stöhlker, T., Pfeifer, T., Brown, G. V., Bernitt, S., Hansmann, P., Wilms, J., Crespo López-Urrutia, J. R., Leutenegger, M. A.

“…A key requirement for the correct interpretation of high-resolution X-ray spectra is that transition energies are known with high accuracy and precision. We…”
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