101 citations · 322 across the 17 of their papers we have counts for
17 papers
High temperature transitions in Ruddlesden-Popper nickelates LaNiO
P. Reiss, A. Shevchenko, P. S. Lizama +9
The discovery of superconductivity at in the infinite-layer nickelate , followed by superconductivity at …
Comparative Raman study of Ruddlesden-Popper nickelates and the monolayer-trilayer polymorph
Vignesh Sundaramurthy, Abhi Suthar, Pascal Puphal +12
Ruddlesden-Popper (RP) nickelates have attracted intense interest following the discovery of superconductivity in several members of the series, including bilayer (BL) LaNi…
Multiorbital character of the density wave in trilayer nickelate superconductors
A. Suthar, V. Sundaramurthy, M. Bejas +15
Ruddlesden-Popper nickelates exhibit high-temperature superconductivity closely intertwined with charge and spin density waves. However, fundamental questions persist regarding the…
Unveiling the Interfacial Reconstruction Mechanism Enabling Stable Growth of the Delafossite PdCoO2 on Al2O3 and LaAlO3
Anna Scheid, Tobias Heil, Y. Eren Suyolcu +7
Delafossites, comprised of noble metal (A+) and strongly correlated sublayers (BO2-), form natural superlattices with highly anisotropic properties. These properties hold significa…
Floating zone growth at high oxygen pressures in Ruddlesden-Popper bilayer nickelate YSrNiAlO
H. Yilmaz, P. Sosa-Lizama, M. Knauft +7
With the discovery of superconductivity under pressure in the Ruddlesden-Popper (RP) bilayer LaNiO and trilayer LaNiO, a new field of nick…
Picosecond expansion in LaAlO3 resonantly driven by infrared-active phonons
Jakob Gollwitzer, Jeffrey Z. Kaaret, Y. Eren Suyolcu +19
We investigate the ultrafast structural dynamics of LaAlO3 thin films driven by short mid-infrared laser pulses at 20 THz. Time-resolved X-ray diffraction reveals an immediate latt…
Unraveling nano-scale effects of topotactic reduction in LaNiO crystals
Yu-Mi Wu, Pascal Puphal, Masahiko Isobe +4
Infinite-layer nickelates stand as a promising frontier in the exploration of unconventional superconductivity. Their synthesis through topotactic oxygen reduction from the parent…
Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO
S. Hayashida, V. Sundaramurthy, P. Puphal +10
Recent x-ray spectroscopic studies have revealed spin excitations and charge density waves in thin films of infinite-layer (IL) nickelates. However, clarifying whether the origin o…
Unconventional crystal structure of the high-pressure superconductor LaNiO
Pascal Puphal, Pascal Reiss, Niklas Enderlein +14
The discovery of high-temperature superconductivity in LaNiO at pressures above 14 GPa has spurred extensive research efforts. Yet, fundamental aspects of the supercond…
Evolution of plasmon excitations across the phase diagram of the cuprate superconductor LaSrCuO
M. Hepting, T. D. Boyko, V. Zimmermann +19
We use resonant inelastic x-ray scattering (RIXS) at the O - and Cu -edges to investigate the doping- and temperature dependence of low-energy plasmon excitations in La$_{2-x…
Topotactically induced oxygen vacancy order in nickelate single crystals
Yu-Mi Wu, Pascal Puphal, Hangoo Lee +6
The strong structure-property coupling in rare-earth nickelates has spurred the realization of new quantum phases in rapid succession. Recently, topotactic transformations have pro…
Topotactic transformation of single-crystals: from perovskite to infinite-layer nickelates
Pascal Puphal, Yu-Mi Wu, Katrin Fürsich +9
Topotactic transformations between related crystal structures are a powerful emerging route for the synthesis of novel quantum materials. Whereas most such "soft chemistry" experim…
Control of the metal-insulator transition in NdNiO thin films through the interplay between structural and electronic properties
Y. E. Suyolcu, K. Fürsich, M. Hepting +10
Heteroepitaxy offers a new type of control mechanism for the crystal structure, the electronic correlations, and thus the functional properties of transition-metal oxides. Here, we…
a-axis YBa2Cu3O7-x/PrBa2Cu3O7-x/YBa2Cu3O7-x trilayers with subnanometer rms roughness
Y. Eren Suyolcu, Jiaxin Sun, Berit H. Goodge +4
We demonstrate a-axis YBa2Cu3O7-x/PrBa2Cu3O7-x/YBa2Cu3O7-x trilayers grown on (100) LaAlO3 substrates with improved interface smoothness. The trilayers are synthesized by ozone-ass…
Inhomogeneous ferromagnetism mimics signatures of the topological Hall effect in SrRuO films
Gideok Kim, K. Son, Y. E. Suyolcu +11
Topological transport phenomena in magnetic materials are a major topic of current condensed matter research. One of the most widely studied phenomena is the ``topological Hall eff…
Electronic and vibrational signatures of ruthenium vacancies in SrRuO thin films
Gideok Kim, Y. Eren Suyolcu, J. Herrero-Martin +12
The synthesis of stoichiometric SrRuO thin films has been a challenge because of the high volatility of ruthenium oxide precursors, which gives rise to ruthenium vacancies…
Tunable perpendicular exchange bias in oxide heterostructures
Gideok Kim, Yury Khaydukov, Martin Bluschke +9
The exchange bias effect is an essential component of magnetic memory and spintronic devices. Whereas recent research has shown that anisotropies perpendicular to the device plane…