Publications/Talks

Scale-invariant magnetic anisotropy in α-RuCl3: A quantum Monte Carlo study,
T. Sato, B. J. Ramshaw, K. A. Modic, and F. F. Assaad,
Phys. Rev. B 110, L201114 (2024), DOI: 10.1103/PhysRevB.110.L201114
(P3, P8)

Phases and exotic phase transitions of a two-dimensional Su-Schrieffer-Heeger model,
A. Götz, M. Hohenadler, and F. F. Assaad,
Phys. Rev. B 109, 195154 (2024), DOI: 10.1103/PhysRevB.109.195154
(P3)

Disorder Operator and Rényi Entanglement Entropy of Symmetric Mass Generation,
Z. H. Liu, Y. D. Liao, G. Pan, M. Song, J. Zhao, W. Jiang, C.-M. Jian, Y.-Z. You, F. F. Assaad, Z. Y. Meng, and C. Xu,
Phys. Rev. Lett. 132, 156503 (2024), DOI: 10.1103/PhysRevLett.132.156503
(P3)

Hubbard and Heisenberg models on hyperbolic lattices — Metal-insulator transitions, global antiferromagnetism and enhanced boundary fluctuations,
A. Götz, G. Rein, J. Carvalho Inácio, and F. F. Assaad,
arXiv:2406.03416v1 (2024)
(P3)

SU(N) Kondo-Heisenberg chain: Phase diagram, Ising criticality, and the coexistence of heavy quasiparticles and valence bond solid order,
M. Raczkowski and F. F. Assaad,
Phys. Rev. B 109, 205154 (2024), DOI: 10.1103/PhysRevB.109.205154
(P3)

Quantum Fisher information in a strange metal,
F. Mazza, S. Biswas, X. Yan, A. Prokofiev, P. Steffens, Q. Si, F. F. Assaad, and S Paschen,
arXiv:2403.12779v2 (2024)
(P3, P6, P9)

(La,Sr)2⁢NiO3: An antiferromagnetic Mott insulator capable of doping,
X. Wang, P. Worm, Y. Gao, W. Wu, N. Liu, Y. Wang, K. Held, and L. Si,
Phys. Rev. B 110, 205110 (2024), DOI: 10.1103/PhysRevB.110.205110
(P5)

Spin fluctuations sufficient to mediate superconductivity in nickelates,
P. Worm, Q. Wang, M. Kitatani, I. Biało, Q. Gao, X. Ren, J. Choi,
D. Csontosová, K.-J. Zhou, X. Zhou, Z. Zhu, L. Si, J. Chang, J. M. Tomczak, and K. Held,
Phys. Rev. B 109, 235126 (2024), DOI: 10.1103/PhysRevB.109.235126
(P5)

Weyl points and spin-orbit coupling in copper-substituted lead phosphate apatite,
M. Braß, L. Si, and Karsten Held,
Phys. Rev. B 109, 085103 (2024), DOI: 10.1103/PhysRevB.109.085103
(P5)

Two-site reduced density matrix from one- and two-particle Green’s functions,
G. Roósz, A. Kauch, F. Bippus, D. Wieser, and K. Held,
Phys. Rev. B 110, 075115 (2024), DOI: 10.1103/PhysRevB.110.075115
(P5)

Fermi and Luttinger Arcs: Two Concepts, Realized on One Surface,
P. Worm, M. Reitner, K. Held, and A. Toschi,
Phys. Rev. Lett. 133, 166501 (2024), DOI: 10.1103/PhysRevLett.133.166501
(P5)

Unambiguous Fluctuation Decomposition of the Self-Energy: Pseudogap Physics beyond Spin Fluctuations,
Y. Yu, S. Iskakov, E. Gull, K. Held, and F. Krien,
Phys. Rev. Lett. 132, 216501 (2024), DOI: 10.1103/PhysRevLett.132.216501
(P5)

Unconventional superconductivity without doping in infinite-layer nickelates under pressure, S. Di Cataldo, P. Worm, J. M. Tomczak, L. Si, and K. Held,
Nature Communications 15, 3952 (2024), DOI: 10.1038/s41467-024-48169-5
(P5)

Pb₁₀₋ₓ Cuₓ(PO₄)₆O: a Mott or charge transfer insulator in need of further doping for (super)conductivity,
L. Si, M. Wallerberger, A. Smolyanyuk, S. Di Cataldo, J. M. Tomczak, and K. Held,
J. Phys.: Condens. Matter 36, 065601 (2024), DOI: 10.1088/1361-648X/ad0673
(P5)

Emergent Topological Semimetal,
D. M. Kirschbaum,
L. Chen, D. A. Zocco, H. Hu, F. Mazza, J. Larrea Jiménez, A. M. Strydom, D. Adroja, X. Yan, A. Prokofiev, Q. Si, and S. Paschen,
arXiv:2404.15924v1
(P6, P9)

Amplified multipartite entanglement witnessed in a quantum critical metal,
Y. Fang, M. Mahankali, Y. Wang, L. Chen, H. Hu, S. Paschen, and Qimiao Si,
arXiv:2402.18552
(P6, P9)

Shot noise and universal Fano factor as a characterization of strongly correlated metals,
Y. Wang, C. Setty, S. Sur, L. Chen, S. Paschen, D. Natelson, and Q. Si,
Phys. Rev. Research 6, L042045 (2024), DOI: 10.1103/PhysRevResearch.6.L042045
(P6, P9)

Anomalous Hall Effect and Quantum Criticality in Geometrically Frustrated Heavy Fermion Metals,
W. Ding, S. Grefe, S. Paschen, and Q. Si,
Phys. Rev. Lett. 133, 106504 (2024), DOI: https://doi.org/10.1103/PhysRevLett.133.106504
(P6, P9)

Flat bands, strange metals and the Kondo effect,
J. G. Checkelsky, B. A. Bernevig, P. Coleman, Q. Si, and S. Paschen,
Nature Reviews Materials volume 9, pages 509–526 (2024), DOI: 10.1038/s41578-023-00644-z
(P6, P9)

Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field,
S. S. Babkin, A. P. Higginbotham, M. Serbyn,
SciPost Phys. 16, 115 (2024), DOI: 10.21468/SciPostPhys.16.5.115
(P6, P11)

Parity-conserving Cooper-pair transport and ideal superconducting diode in planar germanium,
M. Valentini, O. Sagi, L. Baghumyan, T. de Gijsel, J. Jung, S. Calcaterra, A. Ballabio, J. Aguilera Servin, K. Aggarwal, M. Janik, T. Adletzberger, R. Seoane Souto, M. Leijnse, J. Danon, C. Schrade, E. Bakkers, D. Chrastina, G. Isella, and G. Katsaros,
Nature Communications 15, 169 (2024), DOI: 10.1038/s41467-023-44114-0
(P7)

Exchange anisotropies in microwave-driven singlet-triplet qubits,
J. Saez-Mollejo, D. Jirovec, Y. Schell, J. Kukucka, S. Calcaterra, D. Chrastina, G. Isella, M. Rimbach-Russ, S. Bosco, and G. Katsaros,
arXiv:2408.03224
(P7)

Quantum Fluctuations Suppress the Critical Fields in BaCo2(AsO4)2,
S. Safari, W. Bateman-Hemphill, A. Mitra, F. Desrochers, E. Z. Zhang, L. Shafeek, A. Ferrenti, T. M. McQueen, A. Shekhter, Z. Köllö, Y. Baek Kim, B. J. Ramshaw, and K. A. Modic,
arXiv:2403.15315v1 (2024)
(P8)

How to identify and characterize strongly correlated topological semimetals,
D. M. Kirschbaum, M. Lužnik, G. Le Roy, and S. Paschen,
J. Phys. Mater. 7(1), 012003 (2024), DOI: 10.1088/2515-7639/ad0f30
(P9)

Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires,
M. Fu, R. Hartmann, J. Braun, S. Andreev, T. Pietsch, and E. Scheer,
Beilstein J. Nanotechnol. 15, 360 (2024), DOI: 10.3762/bjnano.15.32
(P10)

Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations,
R. Hartmann, Seema, I. Soldatov, M. Lammel, D. Lignon, X. Y. Ai, G. Kiliani, R. Schäfer, A. Erb, R. Gross, J. Boneberg, M. Müller, S. T. B. Goennenwein, E. Scheer, and A. Di Bernardo,
APL Mater. 12, 031121 (2024), DOI: 1063/5.0189993
(P10)

Phase diagram of the SU⁡(𝑁) antiferromagnet of spin 𝑆 on a square lattice,
J. Schwab, F. Parisen Toldin, and F. F. Assaad,
Phys. Rev. B 108, 115151 (2023), DOI: 10.1103/PhysRevB.108.115151
(P3)

Absence of electron-phonon-mediated superconductivity in hydrogen-intercalated nickelates,
S. Di Cataldo, P. Worm, L. Si, and K. Held,
Phys. Rev. B 108, 174512 (2023), DOI: 10.1103/PhysRevB.108.174512
(P5)

Topotactic hydrogen forms chains in ABO2 nickelate superconductors,
L. Si, P. Worm, D. Chen, and K. Held,
Phys. Rev. B 107, 165116 (2023), DOI: 10.1103/PhysRevB.107.165116
(P5)

No superconductivity in Pb₉Cu₁(PO₄)₆O found in orbital and spin fluctuation exchange calculations,
N. Witt, L. Si, J. M. Tomczak, K. Held, and T. O. Wehling,
SciPost Phys. 15, 197 (2023), DOI: 10.21468/SciPostPhys.15.5.197
(P5)

Electronic structure of the putative room-temperature superconductor Pb₉Cu(PO₄)₆O,
L. Si and K. Held,
Phys. Rev. B 108, L121110 (2023), DOI: 10.1103/PhysRevB.108.L121110
(P5)

Nonlinear responses and three-particle correlators in correlated electron systems exemplified by the Anderson impurity model,
P. Kappl, F. Krien, C. Watzenböck, and K. Held,
Phys. Rev. B 107, 205108 (2023), DOI: 10.1103/PhysRevB.107.205108
(P5)

Shot noise in a strange metal,
L. Chen, D. T. Lowder, E. Bakali, A. M. Andrews, W. Schrenk, M. Waas, R. Svagera, G. Eguchi, L. Prochaska, Y. Wang, C. Setty, S. Sur, Q. Si, S. Paschen, and D. Natelson,
Science 382(6673), 907–911 (2023), DOI: 10.1126/science.abq6100
(P9)

Boosting the surface conduction in a topological insulator,
M. Taupin, G. Eguchi, M. Lužnik, A. Steiger-Thirsfeld, Y. Ishida, K. Kuroda, S. Shin, A. Kimura, and S. Paschen,
Phys. Rev. B 107, 235306 (2023), DOI: 10.1103/PhysRevB.107.235306
(P9)

Quantum criticality enabled by intertwined degrees of freedom,
C.-C. Liu, S. Paschen, and Q. Si,
Proceedings of the National Academy of Sciences of the United States of America, 120(30), e2300903120 (2023), DOI: 10.1073/pnas.2300903120
(P9)

Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS2 nanoflakes,
R. Hartmann, M. Högen, D. Lignon, A. K. C. Tan, M. Amado, S. El-Khatib, M. Egilmez, B. Das, C. Leighton, M. Atatüre, E. Scheer, and A. Di Bernardo,
Nanoscale 15, 10277 (2023), DOI: 1039/D3NR00467H
(P10)

Liquid-diffusion-limited growth of vanadium dioxide single crystals,
N. Sprinkart, D. Kazenwadel, R. Hartmann, and P. Baum,
Rev. Research 5, 013028 (2023), DOI: 10.1103/PhysRevResearch.5.013028
(P10)

Nonlinear transport properties of atomic copper point contacts,
M. Strohmeier, K. Kirchberger, and E. Scheer,
Low Temp. Phys. 49, 827 (2023), DOI: 1063/10.0019693
(P10)

Density matrix of electrons coupled to Einstein phonons and the electron-phonon entanglement content of excited states,
G. Roósz and K. Held,
Phys. Rev. B 106, 195404 (2022), DOI: 10.1103/PhysRevB.106.195404
(P5)

Current-induced switching in atomic-size contacts, M. Strohmeier (contributed talk),
25.-29.03.2024, IV International workshop on point-contact-spectroscopy, Kharkiv, Ukraine (online)
(P10)

Tunneling spectroscopy on hybrid SC-FM bilayers made of non-centrosymmetric NbRe and Co, M. Strohmeier (contributed talk),
17.-22.03.2024, DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM), Berlin, Germany
(P10)

Single-crystalline YIG nanoflakes with uniaxial in-plane anisotropy and various crystallographic orientations, R. Hartmann (contributed talk),
17.-22.03.2024, DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM), Berlin, Germany
(P10)

Inelastic neutron scattering on quantum critical Ce₃Pd₂₀Si₆, F. Mazza (poster presentation),
28.02.-01.03.2024, QUAST-CCQ, New York, USA
(P9)

Designing strongly correlated topological semimetals, S. Paschen (invited talk),
07.-11.01.2024, US-German WE-Heraeus-Seminar, Engineered Quantum Materials, Physikzentrum Bad Honnef, Germany
(P9)

Strange metal behavior – From heavy fermion metals to topological semimetals, S. Paschen (invited talk),
11.-15.12.2023, 802. WE-Heraeus-Seminar, Strange Metals in Quantum Materials and Quantum Emulators
(P9)

A walk through the wonderland of heavy fermions, S. Paschen (invited talk),
30.11.2023, Workshop Electron Correlations: From Basic Properties to Applications, MPI CPfS Dresden, Germany
(P9)

Topological semimetals in strongly correlated systems, S. Paschen (invited talk),
27.-30.11.2023, ECMetAC Days 2023, Kranjska Gora, Slovenia
(P9)

Nickelate superconductivity – theory, K. Held (invited talk),
13.11.2023, Ringberg Symposium 2023, Rottach-Egern, Germany
(P5)

Exotic states in heavy fermion compounds, S. Paschen (invited talk),
12.-17.11.2023, Ringberg-Symposium Exotic States of Quantum Condensed Matter, Ringberg Castle
(P9)

Extreme responses of heavy fermion systems, S. Paschen (invited talk),
09.11.2023, VBFF Symposium on Extreme Quantum Materials, Rice University, Houston, USA
(P9)

Correlation-driven topological semimetals, S. Paschen (invited talk),
06.-08.11.2023, RCQM Workshop on Flat Bands, Strong Correlations and Topology, Rice University, Houston, USA
(P9)

Dynamical vertex calculations for nickelate superconductors, K. Held (invited talk),
20.10.2023, Workshop on Computational Approaches to Quantum Many-Body Systems 2023, Saitama, Japan
(P5)

Have Majorana zero modes been observed in superconductor-semiconductor devices?, G. Katsaros (seminar talk),
20.10.2023, Atominstitut, TU Wien, Vienna
(P7)

Strongly correlated topological semimetals, S. Paschen (invited talk),
15.-18.10.2023, 797. WE-Heraeus-Seminar, Interfacing Low and High-Energy Physics with Topological Matter, Bad Honnef, Germany
(P9)

Lecture on DMFT, K. Held (invited talk),
11.10.2023, ISSP International Workshop on HIerarchical Structure and Machine Learning (HISML) 2023, Tokyo, Japan
(P5)

Thermal conductivity measurements of the quantum critical compound Ce₃Pd₂₀Si₆, G. Le Roy (poster presentation),
28.09.2023, Quantum Materials in the Quantum Information Era 2023, Dresden, Germany
(P9)

Strange metal behavior in heavy fermion metals and semimetals, S. Paschen (invited talk),
25.-29.09.2023, International Workshop on Quantum Materials in the Quantum Information Era, MPI PKS Dresden, Germany
(P9)

Strongly correlated rare earth intermetallics, S. Paschen (invited talk),
25.-27.09.2023, XV International Conference Crystal Chemistry of Intermetallic Compounds, Lviv, Ukraine (online)
(P9)

High-Tc cuprates – story of two electronic subsystems, N. Barišić (session organizer),
05.09.2023, Gemeinsame Jahrestagung von SPS und ÖPG 2023, Basel, Switzerland
(P4)

Combining transport measurements and scanning tunneling spectroscopy on unconventional materials, R. Fischer-Süßlin (contributed talk),
27.08.-09.09.2023, ESONN’2023 – European School on Nanosciences & Nanotechnologies, Grenoble, France
(P10)

New tools to decipher strange metal physics, S. Paschen (invited talk),
09.-12.08.2023, 7th InterAcademy Workshop, Non-equilibrium and Meso-scale Frontiers in Quantum Many-body Physics, Monte Verita, Ascona, Switzerland
(P9)

Itinerant vs. localized charges and crystal structure in cuprates, N. Barišić (invited talk),
04.08.2023, 84th Course: K. Alex Müller Workshop on Complexity in Quantum Materials (40 Years of High-Tc Erice Workshops), Erice, Italy
(P4)

Strange metal behavior in heavy fermion compounds and beyond, S. Paschen (invited talk),
24.-28.07.2023, Workshop Correlations in Novel Quantum Materials, Stuttgart, Germany
(P9)

The strange metal YbRh2Si2, S. Paschen (invited talk),
02.-07.07.2023, International Conference on Strongly Correlated Electron Systems (SCES23), Incheon, Korea
(P9)

Experimentally Established Universal and Non-Universal Properties that Define the Physics of Cuprates, N. Barišić (invited talk),
26.06.2023, Quantum in Complex Matter, Superstripe 2023, Ischia, Italy
(P4)

Optical conductivity of cuprates in a new light, N. Barišić (invited talk),
14.06.2023, 7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia
(P4)

High-Tc cuprates – story of two electronic subsystems, N. Barišić (invited talk),
08.06.2023, Joint workshop of the project IMPULZ SUPERSPIN-IM-26 and ERA-CHAIR-project LAMatCU 2023, Bratislava, Slovakia
(P4)

Correlation-driven topological semimetals, S. Paschen (invited seminar),
08.06.2023, Condensed Matter Seminar (CMS), Stanford University, Stanford, USA
(P9)

Spin qubits and hybrid devices in planar Ge, G. Katsaros (invited seminar talk),
26.05.2023, ICMM, Madrid, Abstract
(P7)

High-Tc cuprates – story of two electronic subsystems, N. Barišić (invited talk),
18.05.2023, The Inaugural Workshop on the Trends in Quantum Matter 2023, Notre Dame, USA
(P4)

Experimentally Established Universal and Non-Universal Properties that Define the Physics of Cuprates, N. Barišić (invited talk),
08.05.2023, 8th International Conference in Superconductivity and Magnetism (ICSM 2023), Fethiye, Turkey
(P4)

Topological semimetals driven by strong correlations, S. Paschen (invited talk),
19.-21.04.2023, KPS Spring Meeting, D5-ap: Phonon Spin Transport Properties Pioneer Symposium I, Daejeon, Korea (online)
(P9)

Hybrid devices in planar Ge, G. Katsaros (invited seminar talk),
13.04.2023, TU Delft, Delft
(P7)

Transport and structural characterisation of the metal to insulator transition in Ca2RuO4 nanoflakes, R. Hartmann (contributed talk),
26.-31.03.2023, DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM), Dresden, Germany
(P10)

Dynamical Vertex Approximation Approach in Strongly Correlated Electron Systems, P. Worm (invited talk),
06.03.2023, APS March Meeting 2023, Las Vegas, USA
(P5)

Weyl-Kondo semimetals – Phenomena and stabilization mechanisms, S. Paschen (invited talk),
05.-10.03.2023, APS March Meeting, Session M24: Emergent Phenomena in Strongly Correlated Quantum Materials, Las Vegas, USA
(P9)

Strange metal heavy fermion compounds – A testbed for quantum simulators and entanglement meters?, S. Paschen (invited seminar),
13.01.2023, ATI Seminar, Atominstitut, TU Wien, Vienna, Austria
(P9)