104 citations · 343 across the 11 of their papers we have counts for
15 papers
Visualization of Single Spin-chain Propagation using Bragg Coherent Diffraction Imaging
Xiaoqian M. Chen, Justin S. Woods, Ulrich Welp +11
Domain wall dynamics and their manipulation in finite-size systems serve as a promising platform for beyond Moore's law applications. Yet, the imaging techniques to track their mot…
Kinetic-inductance Parametric Amplification in Superconducting Hybrid Magnonics
Pratap Kumar Pal, Moojune Song, Jinho Lim +9
Parametric amplification enables sensitive microwave detection and signal processing by amplifying weak signals with minimal added noise. Here, we demonstrate kinetic inductance me…
Superconductivity at the metal-insulator phase boundary in a bulk nickelate at ambient pressure
Hyo-Bin Ahn, Xinglong Chen, Hong Zheng +9
The discovery of superconductivity in nickelates has seeded a new field for exploring unconventional superconductivity in transition metal oxides. However, to date superconductivit…
2D Weak Localization in Trilayer Ruddelsden-Popper Nickelates
Hyo-Bin Ahn, Xinglong Chen, Yu Zhang +5
Ruddlesden-Popper (RP) nickelates superconduct when pressure suppresses intertwined charge- and spin-density waves. Here, we employ measurements of quantum corrections to magnetoco…
X-ray Fractional Orbital Angular Momentum from Coherent Magnetic Scattering
P. D. Montgomery, J. S. Woods, M. R. McCarter +10
Artificial spin ice (ASI) based on a square lattice with a topological defect are known to generate orbital angular momentum (OAM) in diffracted X-ray beams. A previous investigati…
Synthesis and transport properties of epitaxial Bi (111) films on GaAs (111) substrates
Jagannath Jena, Eugene D. Ark, Siddhesh Ambhire +12
In recent decades, the growth of ultrathin epitaxial bismuth (Bi) films on various substrates has garnered interest due to their unique electronic properties. We report upon the gr…
Uniaxial spin texture in a superconducting electron gas revealed by exchange interactions
Junyi Yang, Changjiang Liu, Xianjing Zhou +11
Two-dimensional superconductors with spin-textured Fermi surfaces can be a platform for realizing unconventional pairing states and are of substantial interest in the context of qu…
Mixed Delay/Nondelay Embeddings Based Neuromorphic Computing with Patterned Nanomagnet Arrays
Changpeng Ti, Usman Hassan, Sairam Sri Vatsavai +8
Patterned nanomagnet arrays (PNAs) have been shown to exhibit a strong geometrically frustrated dipole interaction. Some PNAs have also shown emergent domain wall dynamics. Previou…
Origin of the Unusual Temperature Dependence of the Upper Critical Field of Kagome Superconductor CsV3Sb5: Multiple Bands or van Hove Singularities?
Ramakanta Chapai, Alexei E. Koshelev, Matthew P. Smylie +8
Van Hove singularities (vHs) located close to the Fermi level in Kagome superconductors AV3Sb5 (A = K, Rb, Cs) have profound influence on their electronic and transport characteris…
A15 Phase Ta3Sb Thin Films: Direct Synthesis, Charge Transport and Spin-Orbit Torque
J. S. Jiang, Qianheng Du, Yi Li +9
Ta3Sb is one of the A15 compounds that have been predicted to have giant spin Hall conductivities due to the gapped Dirac-like band crossings in their electronic structures. We use…
Doubling the Critical Current Density of High Temperature Superconducting Coated Conductors through Proton Irradiation
Y. Jia, M. LeRoux, D. J. Miller +11
The in-field critical current of commercial YBa2Cu3O7 coated conductors can be substantially enhanced by post-fabrication irradiation with 4 MeV protons. Irradiation to a fluence o…
The chiral phase transition in charge ordered 1T-TiSe2
John-Paul Castellan, Stephan Rosenkranz, Ray Osborn +7
It was recently discovered that the low temperature, charge ordered phase of 1T-TiSe2 has a chiral character. This unexpected chirality in a system described by a scalar order para…
Surface Contribution to the Superconducting Properties of MgB2 Single Crystals
A. Rydh, U. Welp, J. M. Hiller +8
We demonstrate direct evidence of possible surface superconductivity on small, well-shaped MgB2 single crystals. Transport measurements in the range H < 1.6 Hc2^c, where Hc2^c is t…
Superconducting Transition and Vortex Pinning in Nb Films Patterned with Nano-scale Hole-arrays
U. Welp, Z. L. Xiao, J. S. Jiang +6
Nb films containing extended arrays of holes with 45-nm diameter and 100-nm spacing have been fabricated using anodized aluminum oxide (AAO) as substrate. Pronounced matching effec…
Controlled Dynamics of Interfaces in a Vibrated Granular Layer
I. Aranson, D. Blair, W. Kwok +5
We present experimental study of a topological excitation, {\it interface}, in a vertically vibrated layer of granular material. We show that these interfaces, separating regions o…