120 citations · 311 across the 21 of their papers we have counts for
21 papers
In-Plane Ferromagnetism and Critical Dynamics in Alkali-Deficient KCrTe (with 0.3) Single Crystals
Catherine Witteveen, Felix Eder, Sara A. López-Paz +6
Layered chromium tellurides are model systems for studying low-dimensional magnetism in van der Waals materials. We report the synthesis and characterization of KCrTe s…
Reversible nanoscale patterning of WTe with a scanning tunneling microscope
Kevin Hauser, Danyang Liu, Berk Zengin +6
Manipulating the lattice structure of ferroelectric quantum materials enables their use in low-power electronic devices, including field-effect transistors. WTe is a Weyl-semim…
Type-II superconductivity in the Dirac semimetal PdTe2
Ritu Gupta, Catherine Witteveen, Debarchan Das +2
We report on the microscopic superconducting properties of the Dirac semimetal PdTe2. In this study, we have focused on mosaic crystals of PdTe2, and used detailed zero field and t…
Stoichiometry and Phase Control in KCrSe via Self-Flux Synthesis
Felix Eder, Catherine Witteveen, Enrico Giannini +1
Layered delafossite-type magnetic materials, such as KCrSe, are promising platforms for studying magnetic systems and potential frustration on triangular lattices. Synthesis, s…
Structural Modulation and Enhanced Magnetic Ordering in Incommensurate KCrSe Crystals
Felix Eder, Catherine Witteveen, Enrico Giannini +1
Layered delafossite-type compounds and related transition metal dichalcogenides, characterized by their triangular net structures, serve as prototypical systems for exploring the i…
Pressure-Induced Enhancement of Superfluid Density in Transition Metal Dichalcogenides with and without Charge Density Wave
S. S. Islam, V. Sazgari, C. Witteveen +8
Gaining a deeper understanding of the interplay between charge density wave (CDW) order and superconductivity in transition metal dichalcogenides (TMDs), particularly within the (4…
Nature of metallic and insulating domains in the CDW system 1T-TaSe2
M. Straub, F. Petocchi, C. Witteveen +12
We study the electronic structure of bulk 1T-TaSe in the charge density wave phase at low temperature. Our spatially and angle resolved photoemission (ARPES) data show insulati…
Efficient Soft-Chemical Synthesis of Large van-der-Waals Crystals of the Room-Temperature Ferromagnet 1T-CrTe2
Kai D. Röseler, Catherine Witteveen, Céline Besnard +3
We herein report on a fast and convenient soft-chemical synthesis approach towards large 1T-CrTe2 van-der-Waals crystals. This compound is formed X-ray diffraction pure, with a com…
Anomalous Shubnikov-de Haas effect and observation of the Bloch-Grüneisen temperature in the Dirac semimetal ZrTe5
S. Galeski, K. Araki, O. K. Forslund +29
Appearance of quantum oscillations (QO) in both thermodynamic and transport properties of metals at low temperatures is the most striking experimental consequence of the existence…
Synthesis and Anisotropic Magnetic Properties of LiCrTe Single Crystals with a Triangular-Lattice Antiferromagnetic Structure
Catherine Witteveen, Elisabetta Nocerino, Sara A. López-Paz +4
We report on the synthesis of LiCrTe single crystals and on their anisotropic magnetic properties. We have obtained these single crystals by employing a Te/Li-flux synthesis me…
The Duel of Magnetic Interactions & Structural Instabilities: Itinerant Frustration in the Triangular Lattice Compound LiCrSe
E. Nocerino, S. Kobayashi, C. Witteveen +14
The recent synthesis of the chromium selenide compound LiCrSe constitutes a valuable addition to the ensemble of two-dimensional triangular lattice antiferromagnets (2D-TLA). I…
Nuclear and magnetic spin structure of the antiferromagnetic triangular lattice compound LiCrTe investigated by SR as well as neutron and X-ray diffraction
E. Nocerino, C. Witteveen, S. Kobayashi +12
Twodimensional (2D) triangular lattices antiferromagnets (2DTLA) often manifest intriguing physical and technological properties, due to the strong interplay between lattice…
Observation of the metallic mosaic phase in 1-TaS at equilibrium
Björn Salzmann, Elina Hujala, Catherine Witteveen +5
The transition-metal dichalcogenide tantalum disulphide (1-TaS) hosts a commensurate charge density wave (CCDW) at temperatures below 165~K where it also becomes insulating.…
A Sacrificial Magnet Concept for Field Dependent Surface Science Studies
Danyang Liu, Jens Oppliger, Aleš Cahlík +3
We demonstrate a straightforward approach to integrating a magnetic field into a low-temperature scanning tunneling microscope (STM) by adhering an NdFeB permanent magnet to a magn…
Modified interlayer stacking and insulator to correlated-metal transition driven by uniaxial strain in 1-TaS
Christopher W. Nicholson, Francesco Petocchi, Björn Salzmann +6
Interlayer coupling is strongly implicated in the complex electronic properties of 1-TaS , but the interplay between this and electronic correlations remains unresolved. Her…
Adaptive Sparse Sampling for Quasiparticle Interference Imaging
Jens Oppliger, Berk Zengin, Danyang Liu +4
Quasiparticle interference imaging (QPI) offers insight into the band structure of quantum materials from the Fourier transform of local density of states (LDOS) maps. Their acquis…
Dynamic Magnetic Crossover at the Origin of the Hidden-Order in van der Waals Antiferromagnet CrSBr
Sara A. López-Paz, Zurab Guguchia, Vladimir Y. Pomjakushin +6
The van der Waals material CrSBr stands out as a promising two-dimensional magnet. Especially, its high magnetic ordering temperature and versatile magneto-transport properties mak…
Polytypism and Superconductivity in the NbS System
Catherine Witteveen, Karolina Gornicka, Johan Chang +3
We report on the phase formation and the superconducting properties in the NbS system. Specifically, we have performed a series of standardized solid-state syntheses in this sy…
Preparation and Characterization of High-Entropy Alloy (TaNb)(ZrHfTi) Superconducting Films
Xiaofu Zhang, Natascha Winter, Catherine Witteveen +5
We report on the preparation and the physical properties of superconducting (TaNb)_1-x(ZrHfTi)_x high-entropy alloy films. The films were prepared by means of magnetron sputtering…
Low-energy excitations in type-II Weyl semimetal Td-MoTe2 evidenced through optical conductivity
D. Santos-Cottin, E. Martino, F. Le Mardele +5
Molybdenum ditelluride, MoTe2, is a versatile material where the topological phase can be readily tuned by manipulating the associated structural phase transition. The fine details…
Linear Scaling of the Superfluid Density with the Critical Temperature in the Layered Superconductor 2H-NbSe_2
F. O. von Rohr, J. -C. Orain, R. Khasanov +10
We report on high-pressure (p_max = 2.1 GPa) muon spin rotation experiments probing the temperature-dependent magnetic penetration depth in the layered superconductor 2H-NbSe_2. Up…