317 citations · 1k across the 33 of their papers we have counts for
30 papers
Single- Cycloid and Double- Vortex Lattices in Layered Magnetic Semimetal EuAgSb
Paul M. Neves, Takashi Kurumaji, Joshua P. Wakefield +11
Recently, a host of exotic magnetic textures such as topologically protected skyrmion lattices has been discovered in several bulk metallic lanthanide compounds. In addition to hos…
Reentrant Landau Levels in a Dirac topological insulator
C. Kaufmann Ribeiro, J. C. Mutch, Q. Jiang +13
The quantum limit, where magnetic fields confine carriers to the lowest Landau level, is predicted to host exotic quantum phases arising from strengthened electronic correlations,…
Design and Predict Tetragonal van der Waals Layered Quantum Materials of MPdI (M=Ga, In and 3 Transition Metals)
Niraj K. Nepal, Tyler J. Slade, Joanna M. Blawat +8
Quantum materials with stacked van der Waals (vdW) layers hosting non-trivial band structure topology and magnetism have shown many interesting properties. Using high throughput de…
Temperature dependence and limiting mechanisms of the upper critical field of FeSe thin films
M. Stanley, Y. Li, J. C. Palmstrom +7
We use magnetoresistance measurements at high magnetic field (B \leq 65 T) and low temperature (T \geq 500 mK) to gain fresh insights into the behavior of the upper critical field,…
Fermi Surface Evolution and Anomalous Hall Effect in an Ideal Type-II Weyl Semimetal
Qianni Jiang, Johanna C. Palmstrom, John Singleton +11
Weyl semimetals (WSMs) are three-dimensional topological materials that exhibit fascinating properties due to the presence of Weyl nodes in their band structure. However, existing…
Giant spin-valve effect and chiral anomaly in antiferromagnetic topological insulators Mn(Bi1-xSbx)2Te4
Seng Huat Lee, David Graf, Robert Robinson +3
We report c-axis transport studies on magnetic topological insulators Mn(Bi1-xSbx)2Te4. We performed systematic c-axis magnetoresistivity measurements under high magnetic fields (u…
Surprisingly large anomalous Hall effect and giant negative magnetoresistance in half-topological semimetals
Yanglin Zhu, Cheng-Yi Huang, Yu Wang +9
Large intrinsic anomalous Hall effect (AHE) due to the Berry curvature in magnetic topological semimetals is attracting enormous interest due to its fundamental importance and tech…
Quantum critical fluctuations in an Fe-based superconductor
Daniel Jost, Leander Peis, Ge He +9
Quantum critical fluctuations may prove to play an instrumental role in the formation of unconventional superconductivity. Here, we show that the characteristic scaling of a margin…
Anisotropic quasiparticle coherence in nematic BaFeAs studied with strain-dependent ARPES
H. Pfau, S. D. Chen, M. Hashimoto +7
The hallmark of nematic order in iron-based superconductors is a resistivity anisotropy but it is unclear to which extent quasiparticle dispersions, lifetimes and coherence contrib…
Elastocaloric signature of nematic fluctuations
Matthias S. Ikeda, Thanapat Worasaran, Elliott W. Rosenberg +3
The elastocaloric effect (ECE) is a thermodynamic quantity relating changes in entropy to changes in strain experienced by a material. As such, ECE measurements can provide valuabl…
Scale-invariant magnetic anisotropy in RuCl at high magnetic fields
K. A. Modic, Ross D. McDonald, J. P. C. Ruff +13
In RuCl, inelastic neutron scattering and Raman spectroscopy reveal a continuum of non-spin-wave excitations that persists to high temperature, suggesting the presence of a spi…
Nematic quantum criticality in an Fe-based superconductor revealed by strain-tuning
Thanapat Worasaran, Matthias S. Ikeda, Johanna C. Palmstrom +3
Quantum criticality has been invoked as being essential to the understanding of a wide range of exotic electronic behavior, including heavy Fermion and unconventional superconducti…
Low work function in the 122-family of iron-based superconductors
H. Pfau, H. Soifer, J. A. Sobota +8
We determine the work functions of the iron arsenic compounds FeAs () using photoemission spectroscopy to be 2.7 eV for CaFeAs, 1.8 eV for…
Comparison of temperature and doping dependence of nematic susceptibility near a putative nematic quantum critical point
J. C. Palmstrom, P. Walmsley, J. A. W. Straquadine +4
Strong electronic nematic fluctuations have been discovered near optimal doping for several families of Fe-based superconductors, motivating the search for a possible link between…
Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors
H. Pfau, S. D. Chen, M. Yi +11
The momentum dependence of the nematic order parameter is an important ingredient in the microscopic description of iron-based high-temperature superconductors. While recent report…
Imaging Nematic Transitions in Iron-Pnictide Superconductors with a Quantum Gas
Fan Yang, Stephen F. Taylor, Stephen D. Edkins +3
The SQCRAMscope is a recently realized Scanning Quantum CRyogenic Atom Microscope that utilizes an atomic Bose-Einstein condensate to measure magnetic fields emanating from solid-s…
Imaging anisotropic vortex dynamics in FeSe
Irene P. Zhang, Johanna C. Palmstrom, Hilary Noad +6
Strong vortex pinning in FeSe could be useful for technological applications and could provide clues about the coexistence of superconductivity and nematicity. To characterize the…
Signatures of Anelastic Domain Relaxation in Ba(FeCo)As Investigated by Mechanical Modulation of Resistivity
Alexander T. Hristov, Matthias S. Ikeda, Johanna C. Palmstrom +1
The resistive response of Ba(FeCo)As to AC mechanical deformation is considered in the multi-domain state. This resistance change depends both upon the an…
AC Elastocaloric effect as a probe for thermodynamic signatures of continuous phase transitions
Matthias S. Ikeda, Joshua A. W. Straquadine, Alexander T. Hristov +5
Studying the response of materials to strain can elucidate subtle properties of electronic structure in strongly correlated materials. So far, mostly the relation between strain an…
Detailed band structure of twinned and detwinned BaFeAs studied with angle-resolved photoemission spectroscopy
H. Pfau, C. R. Rotundu, J. C. Palmstrom +6
We study the band structure of twinned and detwinned BaFeAs using angle-resolved photoemission spectroscopy (ARPES). The combination of measurements in the ordered and norm…
Scale-Invariance of a Spin Liquid in High Magnetic Fields
K. A. Modic, Ross D. McDonald, J. P. C. Ruff +13
In RuCl, inelastic neutron scattering and Raman spectroscopy reveal a continuum of non-spin-wave excitations that persists to high temperature, suggesting the presence of a spi…
Elastoresistive and Elastocaloric Anomalies at Magnetic and Electronic-Nematic Critical Points
Alexander T. Hristov, Matthias S. Ikeda, Johanna C. Palmstrom +2
Using Ba(FeCo)As as an exemplar material exhibiting second order electronic-nematic and antiferromagnetic transitions, we present measurements that re…
Measurement of Elastoresistivity at Finite Frequency by Amplitude Demodulation
Alexander T. Hristov, Johanna C. Palmstrom, Joshua A. W. Straquadine +3
Elastoresistivity, the relation between resistivity and strain, can elucidate subtle properties of the electronic structure of a material and is an increasingly important tool for…
Symmetric and antisymmetric strain as continuous tuning parameters for electronic nematic order
Matthias S. Ikeda, Thanapat Worasaran, Johanna C. Palmstrom +2
We report the separate response of the critical temperature of the nematic phase transition to symmetric and antisymmetric strains for the prototypical underdoped iron…