# Author: Philipp Hansmann

## New PRB “Inter-orbital singlet pairing in Sr2RuO4: a Hund’s superconductor”

Stefan Käser, et al. We study the superconducting gap function of Sr2RuO4. By solving the linearized Eliashberg equation with a correlated pairing vertex extracted from a dynamical mean-field calculation we identify the dominant pairing channels. An analysis of the candidate gap functions in orbita...

## CNQM2021 talks are online

The talks of the 2021 workshop at the FKF-MPG in Stuttgart are now online and available via YouTube!

## Control of the metal-insulator transition in NdNiO3 thin films through the interplay between structural and electronic properties

Y. E. Suyolcu, K. Fürsich, M. Hepting, Z. Zhong, Y. Lu, Y. Wang, G. Christiani, G. Logvenov, P. Hansmann, M. Minola, B. Keimer, P. A. van Aken, E. Benckiser Heteroepitaxy offers a new type of control mechanism for the crystal structure, the electronic correlations, and thus the functional propertie...

## Quantum Showdown: Competing Methods of Solving Quantum Systems Put to the Test

A many-method study of the Hubbard model demonstrates how the field of computational quantum physics is evolving to be more collaborative.

## Tracking the Footprints of Spin Fluctuations: A Multi-Method, Multi-Messenger Study of the Two-Dimensional Hubbard Model

Thomas Schäfer, Nils Wentzell, Fedor Šimkovic IV, Yuan-Yao He, Cornelia Hille, Marcel Klett, Christian J. Eckhardt, Behnam Arzhang, Viktor Harkov, François-Marie Le Régent, Alfred Kirsch, Yan Wang, Aaram J. Kim, Evgeny Kozik, Evgeny A. Stepanov, Anna Kauch, Sabine Andergassen, Philipp Hansmann, Dani...

## Tree Tensor-Network Real-Time Multiorbital Impurity Solver: Spin-Orbit Coupling and Correlation Functions in Sr2RuO4

X. Cao, Y. Lu, P. Hansmann, M. W. Haverkort We present a tree tensor-network impurity solver suited for general multiorbital systems. The network is constructed to efficiently capture the entanglement structure and symmetry of an impurity problem. The solver works directly on the real-time/frequenc...

## Mott insulating states with competing orders in the triangular lattice Hubbard model

Alexander Wietek, Riccardo Rossi, Fedor Šimkovic IV, Marcel Klett, Philipp Hansmann, Michel Ferrero, E. Miles Stoudenmire, Thomas Schäfer, Antoine Georges The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermod...

## A superlattice approach to doping infinite-layer nickelates

R. A. Ortiz, H. Menke, D. T. Mantadakis, F. Misják, K. Fürsich, E. Schierle, G. Christiani, G. Logvenov, U. Kaiser, B. Keimer, P. Hansmann, E. Benckiser The recent observation of superconductivity in Sr-doped infinite-layer NdNiO2 thin films has attracted a lot of attention, since this compound is ...

## 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 layere...

## 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 s...