519 citations · 1.5k across the 40 of their papers we have counts for
41 papers
Strain-Induced Metal-to-Insulator Transition in Antiferromagnetic SrCrO Thin Films
S. Jöhr, A. Carta, J. Moreno +11
Antiferromagnetic (AF) metals are rare, yet they combine properties attractive for spintronic devices like robustness against stray fields and electrical readout. Among AF metal ox…
Doping dependence of local moments in infinite layer nickelates
Martin Gonzalez, Andreas Suter, Michal Kiaba +5
The infinite layer nickelates are notable for their lack of long-range antiferromagnetic ordering, in contrast to the parent compounds of the superconducting cuprates. Instead, the…
Net Magnetization and Inhomogeneous Magnetic Order in a High-Tc Nickelate Superconductor
Alexander J. Grutter, Nurul Fitriyah, Brian B. Maranville +10
High-temperature and high-magnetic-field-induced re-entrant superconductivity has been discovered in the infinite-layer nickelate (SECNO). In…
Niobium's intrinsic coherence length and penetration depth revisited using low-energy muon spin spectroscopy and secondary-ion mass spectrometry
Ryan M. L. McFadden, Jonathan W. Angle, Eric M. Lechner +7
We report direct, simultaneous measurements of the London penetration depth () and Bardeen-Cooper-Schrieffer (BCS) coherence length () in oxygen-doped niobium, with impur…
Cu-spin Correlation in the Electron-overdoped High-Tc Cuprate Thin Films of La_2-x_Ce_x_CuO_4_ Probed by Low-energy Muons
S. E. Park, Y. Kawai, A. Suter +7
We investigated the Cu-spin correlation in the overdoped regime of the electron-doped high-Tc cuprate thin films of La_2-x_Ce_x_CuO_4_, changing the reduction condition from muon s…
Surface-Localized Magnetic Order in RuO2 Thin Films Revealed by Low-Energy Muon Probes
Akashdeep Akashdeep, Sachin Krishnia, Jae-Hyun Ha +12
Ruthenium dioxide (RuO2) has recently emerged as a candidate altermagnet, yet its intrinsic magnetic ground state, particularly in thin films, remains debated. This study aims to c…
Microwave Spectroscopy of the Muonium Fine Structure Interval
Philipp Blumer, Gianluca Janka, Svenja Geissmann +8
We report a microwave spectroscopy measurement of the muonium fine structure transition, yielding a transition frequency of , in ag…
Implantation studies of low-energy positive muons in niobium thin films
Ryan M. L. McFadden, Andreas Suter, Leon Ruf +5
Here we study the range of keV positive muons implanted in NbO( nm)/Nb( nm)/SiO(300 nm)/Si [ = 3.6 nm, 3.3 nm; = 42.0 nm, 60.1 nm] thin films using l…
Unconventional polaronic ground state in superconducting LiTiO
Zubia Hasan, Grace A. Pan, Harrison LaBollita +23
Geometrically frustrated lattices can display a range of correlated phenomena, ranging from spin frustration and charge order to dispersionless flat bands due to quantum interferen…
Complex Magnetic Ordering in Candidate Topological Superconductors
Purnima P. Balakrishnan, Hemian Yi, Zi-Jie Yan +13
The search for chiral topological superconductivity in magnetic topological insulator (TI)-FeTe heterostructures is a key frontier in condensed matter physics, with potential appli…
Monitoring the tagging efficiency of the Low-Energy Muon beamline through background analysis: Insights into the long-term performance of ultrathin carbon foils
Gianluca Janka, Herman Ishchenko, Zaher Salman +2
The efficient tagging of individual muons, along with the stability of the involved ultrathin carbon foil, is critical for ensuring fast, reliable and reproducible low-energy muon…
Persistent Uncorrelated Magnetic Domains in Fe/Si Multilayers and their suppression by incorporating 11B4C
Anton Zubayer, Artur Glavic, Naureen Ghafoor +16
This study investigates magnetic domains in Fe/Si and Fe/Si + B4C multilayers using spin flip off-specular polarized neutron reflectometry. The results show that Fe/Si multilayers…
Magnetic precursor to the structural phase transition in VO
Chubin Huang, Abhishek Rakshit, Gianluca Janka +5
The coupling between structural, electronic and magnetic degrees of freedom across the metal-insulator transition in V2O3 makes it hard to determine the main driving mechanism behi…
Absence of magnetic order in RuO: insights from SR spectroscopy and neutron diffraction
Philipp Keßler, Laura Garcia-Gassull, Andreas Suter +8
Altermagnets are a novel class of magnetic materials besides ferro- and antiferromagnets, where the interplay of lattice and spin symmetries produces a magnetic order that is stagg…
Observation of Mermin-Wagner behavior in LaFeO/SrTiO superlattices
Michal Kiaba, Andreas Suter, Zaher Salman +4
Two-dimensional magnetic materials attract a lot of attention since they potentially exhibit new magnetic properties due to, e.g., strongly enhanced spin fluctuations. However, the…
Emergence of interfacial magnetism in strongly-correlated nickelate-titanate superlattices
Teguh Citra Asmara, Robert J. Green, Andreas Suter +21
Strongly-correlated transition-metal oxides are widely known for their various exotic phenomena. This is exemplified by rare-earth nickelates such as LaNiO, which possess int…
Unveiling unconventional magnetism at the surface of SrRuO
Rosalba Fittipaldi, Roman Hartmann, Maria Teresa Mercaldo +23
Materials with strongly correlated electrons exhibit physical properties that are often difficult to predict as they result from the interactions of large numbers of electrons comb…
Improving the low-energy muon beam quality of the LEM beamline at PSI: Characterisation of ultra-thin carbon foils
Gianluca Janka, Maria Mendes Martins, Xiaojie Ni +3
The Low-Energy Muon beamline (LEM) at the Paul Scherrer Institute currently stands as the world's only facility providing a continuous beam of low-energy muons with keV energies fo…
Coexistence of Superconductivity and Antiferromagnetism in Topological Magnet MnBi2Te4 Films
Wei Yuan, Zi-Jie Yan, Hemian Yi +15
The interface of two materials can harbor unexpected emergent phenomena. One example is interface-induced superconductivity. In this work, we employ molecular beam epitaxy to grow…
Interface-Induced Superconductivity in Magnetic Topological Insulator-Iron Chalcogenide Heterostructures
Hemian Yi, Yi-Fan Zhao, Ying-Ting Chan +24
When two different electronic materials are brought together, the resultant interface often shows unexpected quantum phenomena, including interfacial superconductivity and Fu-Kane…
Small sample measurements at the low energy muon facility of Paul Scherrer Institute
X. Ni, L. Zhou, M. M. Martins +3
The low energy muon spin rotation spectroscopy (LE-SR) is primarily used to investigate thin films, surfaces, and interfaces of materials, which has matured at the Paul Scherrer…
Direct observation of hole carrier density profiles and their light induced manipulation at the surface of Ge
T. Prokscha, K. H. Chow, Z. Salman +2
We demonstrate that, by using low-energy positive muon () spin spectroscopy as a local probe technique, the profiles of free charge carriers can be directly determined in the…
Do topology and ferromagnetism cooperate at the EuS/BiSe interface?
J. A. Krieger, Y. Ou, M. Caputo +10
We probe the local magnetic properties of interfaces between the insulating ferromagnet EuS and the topological insulator BiSe using low energy muon spin rotation (LE-SR…
Critical Fields of NbSn Prepared for Superconducting Cavities
S. Keckert, T. Junginger, T. Buck +10
NbSn is currently the most promising material other than niobium for future superconducting radiofrequency cavities. Critical fields above 120 mT in pulsed operation and about…