Karsten Held
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Explore the profile of Karsten Held including associated specialties, affiliations and a list of published articles.
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Articles
19
Citations
81
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Recent Articles
1.
Krsnik J, Held K
Nat Commun
. 2025 Jan;
16(1):255.
PMID: 39747139
Waterfalls are anomalies in the angle-resolved photoemission spectrum where the energy-momentum dispersion is almost vertical, and the spectrum strongly smeared out. These anomalies are observed at relatively high energies, among...
2.
Worm P, Reitner M, Held K, Toschi A
Phys Rev Lett
. 2024 Nov;
133(16):166501.
PMID: 39485982
We present an analytically solvable model for correlated electrons, which is able to capture the major Fermi surface modifications occurring in both hole- and electron-doped cuprates as a function of...
3.
Unambiguous Fluctuation Decomposition of the Self-Energy: Pseudogap Physics beyond Spin Fluctuations
Yu Y, Iskakov S, Gull E, Held K, Krien F
Phys Rev Lett
. 2024 Jun;
132(21):216501.
PMID: 38856250
Correlated electron systems may give rise to multiple effective interactions whose combined impact on quasiparticle properties can be difficult to disentangle. We introduce an unambiguous decomposition of the electronic self-energy...
4.
Di Cataldo S, Worm P, Tomczak J, Si L, Held K
Nat Commun
. 2024 May;
15(1):3952.
PMID: 38729955
High-temperature unconventional superconductivity quite generically emerges from doping a strongly correlated parent compound, often (close to) an antiferromagnetic insulator. The recently developed dynamical vertex approximation is a state-of-the-art technique that...
5.
Si L, Wallerberger M, Smolyanyuk A, Di Cataldo S, Tomczak J, Held K
J Phys Condens Matter
. 2023 Oct;
36(6).
PMID: 37875139
We briefly review the status quo of research on the putative superconductor PbCu(PO)O also known as LK-99. Further, we providederived tight-binding parameters for a two- and five-band model, and solve...
6.
Wais M, Bagsican F, Komatsu N, Gao W, Serita K, Murakami H, et al.
Nano Lett
. 2023 May;
23(10):4448-4455.
PMID: 37164003
The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble of randomly oriented CNTs, this anisotropy disappears together...
7.
Kitatani M, Si L, Worm P, Tomczak J, Arita R, Held K
Phys Rev Lett
. 2023 May;
130(16):166002.
PMID: 37154662
Motivated by cuprate and nickelate superconductors, we perform a comprehensive study of the superconducting instability in the single-band Hubbard model. We calculate the spectrum and superconducting transition temperature T_{c} as...
8.
Lu J, Si L, Zhang Q, Tian C, Liu X, Song C, et al.
Adv Mater
. 2021 Jul;
33(33):e2102525.
PMID: 34223676
In situ electrical control of the Dzyaloshinskii-Moriya interaction (DMI) is one of the central but challenging goals toward skyrmion-based device applications. An atomic design of defective interfaces in spin-orbit-coupled transition-metal...
9.
Katsaros G, Kukucka J, Vukusic L, Watzinger H, Gao F, Wang T, et al.
Nano Lett
. 2020 Jun;
20(7):5201-5206.
PMID: 32479090
Using inelastic cotunneling spectroscopy we observe a zero field splitting within the spin triplet manifold of Ge hut wire quantum dots. The states with spin ±1 in the confinement direction...
10.
Si L, Xiao W, Kaufmann J, Tomczak J, Lu Y, Zhong Z, et al.
Phys Rev Lett
. 2020 May;
124(16):166402.
PMID: 32383925
Superconducting nickelates appear to be difficult to synthesize. Since the chemical reduction of ABO_{3} [rare earth (A), transition metal (B)] with CaH_{2} may result in both ABO_{2} and ABO_{2}H, we...