Philipp Hansmann

25 to 30 of 31

10MAR 2021
Allgemein
Charge disproportionation and nano phase separation in RSrNiO4
H. Guo, Z. W. Li, C. F. Chang, Z. Hu, C.-Y. Kuo, T. G. Perring, W. Schmidt, A. Piovano, K. Schmalzl, H. C. Walker, H. J. Lin, C. T. Chen, S. Blanco-Canosa, J. Schlappa, C. Schüßler-Langeheine, P. Hansmann, D. I. Khomskii, L. H. Tjeng, A. C. Komarek We have successfully grown centimeter-sized layered RSrNiO4 single […]
Read more about Charge disproportionation and nano phase separation in RSrNiO4
18NOV 2020
Allgemein
From antiferromagnetic and hidden order to Pauli paramagnetism in UM2Si2 compounds with 5f electron duality
Using inelastic X-ray scattering beyond the dipole limit and hard X-ray photoelectron spectroscopy we establish the dual nature of the U 5f electrons in UM2Si2 (M = Pd, Ni, Ru, Fe), regardless of their degree of delocalization. We have observed that the compounds have in common a local atomic-like state that is well described by the […]
Read more about From antiferromagnetic and hidden order to Pauli paramagnetism in UM2Si2 compounds with 5f electron duality
06OCT 2020
Allgemein
Predicted Superconductivity in Sn:Si(111) found experimentally
Employing advanced methods in quantum many-body theory in 2018 we predicted chiral d-wave superconductivity in correlated ad-atom lattices on the Si(111) surface (X. Cao et al.). Now, two years later, experimentalists in Tennessee have found superconductivity in hole doped Sn:Si(111) (X. Wu et al.). The symmetry of the order parameter still needs to be clarified […]
Read more about Predicted Superconductivity in Sn:Si(111) found experimentally
28MAY 2020
publication
Charge transfer energy in iridates: a hard x-ray photoelectron spectroscopy study
D. Takegami, D. Kasinathan, K. K. Wolff, S. G. Altendorf, C. F. Chang, K. Hoefer, A. Melendez-Sans, Y. Utsumi, F. Meneghin, T. D. Ha, C. H. Yen, K. Chen, C. Y. Kuo, Y. F. Liao, K. D. Tsuei, R. Morrow, S. Wurmehl, B. Büchner, B. E. Prasad, M. Jansen, A. C. Komarek, P. Hansmann, L. H. Tjeng We have investigated the electronic structure of iridates in the double perovskite crystal structure containing either Ir4+ or Ir5+ using hard x-ray […]D. Takegami, D. Kasinathan, K. K. Wolff, S. G. Altendorf, C. F. Chang, K. Hoefer, A. Melendez-Sans, Y. Utsumi, F. Meneghin, T. D. Ha, C. H. Yen, K. Chen, C. Y. Kuo, Y. F. Liao, K. D. Tsuei, R. Morrow, S. Wurmehl, B. Büchner, B. E. Prasad, M. Jansen, A. C. Komarek, P. Hansmann, L. H. Tjeng We have investigated the electronic structure of iridates in the double perovskite crystal structure containing either Ir4+ or Ir5+ using hard x-ray […]
Read more about Charge transfer energy in iridates: a hard x-ray photoelectron spectroscopy study
22MAY 2020
Allgemein
Short group presentation
A ~20min introduction to our research field and Bachelor/Master projects can be found here!
Read more about Short group presentation
29APR 2020
publication
New paper on cDMFT
Real-space cluster dynamical mean-field theory: Center focused extrapolation on the one- and two particle level Marcel Klett, Nils Wentzell, Thomas Schäfer, Fedor Simkovic IV, Olivier Parcollet, Sabine Andergassen, Philipp Hansmann We revisit the cellular dynamical mean-field theory (CDMFT) for the single band Hubbard model on the square lattice at half filling, reaching real-space cluster sizes of up to 9 x 9 […]Real-space cluster dynamical mean-field theory: Center focused extrapolation on the one- and two particle level Marcel Klett, Nils Wentzell, Thomas Schäfer, Fedor Simkovic IV, Olivier Parcollet, Sabine Andergassen, Philipp Hansmann We revisit the cellular dynamical mean-field theory (CDMFT) for the single band Hubbard model on the square lattice at half filling, reaching real-space cluster sizes of up to 9 x 9 […]
Read more about New paper on cDMFT