1.1k citations · 2.9k across the 22 of their papers we have counts for
21 papers
High-pressure control of optical nonlinearity in the polar Weyl semimetal TaAs
Chen Li, Xiang Li, T. Deshpande +6
The transition metal monopnictide family of Weyl semimetals recently has been shown to exhibit anomalously strong second-order optical nonlinearity, which is theoretically attribut…
Topological surface conduction in Kondo insulator YbB
Y. Sato, Z. Xiang, Y. Kasahara +10
Kondo insulators have recently aroused great interest because they are promising materials that host a topological insulator state caused by the strong electron interactions. Moreo…
Antiferromagnetic Switching Driven by the Collective Dynamics of a Coexisting Spin Glass
Eran Maniv, Nityan Nair, Shannon C. Haley +11
The theory behind the electrical switching of antiferromagnets is premised on the existence of a well defined broken symmetry state that can be rotated to encode information. A spi…
Magnetic electron collimation in three-dimensional semi-metals
Xiangwei Huang, Carsten Putzke, Chunyu Guo +6
While electrons moving perpendicular to a magnetic field are confined to cyclotron orbits, they can move freely parallel to the field. This simple fact leads to complex current flo…
Field-angle dependence of sound velocity in the Weyl semimetal TaAs
F. Laliberté, F. Bélanger, N. L. Nair +5
The elastic modulus of a single crystal of the Weyl semimetal TaAs was investigated by measuring relative changes in the sound velocity under application of a magnetic fie…
Observation of three-state nematicity in the triangular lattice antiferromagnet Fe NbS
Arielle Little, Changmin Lee, Caolan John +9
Nematic order is the breaking of rotational symmetry in the presence of translational invariance. While originally defined in the context of liquid crystals, the concept of nematic…
Electrical switching in a magnetically intercalated transition metal dichalcogenide
Nityan L. Nair, Eran Maniv, Caolan John +3
Recent advances in tuning the correlated behavior of graphene and transition-metal dichalcogenides (TMDs) have opened a new frontier in the study of many-body physics in two dimens…
Giant intrinsic photoresponse in pristine graphene
Qiong Ma, Chun Hung Lui, Justin C. W. Song +14
When the Fermi level matches the Dirac point in graphene, the reduced charge screening can dramatically enhance electron-electron (e-e) scattering to produce a strongly interacting…
Transport signatures of surface states in a Weyl semimetal: evidence of field driven Fermi arc interferometry
Nityan L. Nair, Marie-Eve Boulanger, Francis Laliberté +8
A signature property of Weyl semimetals is the existence of topologically protected surface states - arcs in momentum space that connect Weyl points in the bulk. However, the prese…
Dirac fermions in the heavy-fermion superconductors Ce(Co,Rh,Ir)In
Kent R. Shirer, Yan Sun, Maja D. Bachmann +13
The Ce(Co,Rh,Ir)In family of ``Ce-115'' materials hosts an abundance of correlated electron behavior, including heavy-fermion physics, magnetism, superconductivity and nematici…
Resonance-enhanced optical nonlinearity in the Weyl semimetal TaAs
Shreyas Patankar, Liang Wu, Baozhu Lu +10
While all media can exhibit first-order conductivity describing current linearly proportional to electric field, , the second-order conductivity, , relating current to…
Thermodynamic signatures for the existence of Dirac electrons in ZrTe5
Nityan L. Nair, Philipp T. Dumitrescu, Sanyum Channa +4
We combine transport, magnetization, and torque magnetometry measurements to investigate the electronic structure of ZrTe5 and its evolution with temperature. At fields beyond the…
Inducing superconductivity in Weyl semi-metal microstructures by selective ion sputtering
Maja D. Bachmann, Nityan Nair, Felix Flicker +7
By introducing a superconducting gap in Weyl- or Dirac semi-metals, the superconducting state inherits the non-trivial topology of their electronic structure. As a result, Weyl sup…
Giant anisotropic nonlinear optical response in transition metal monopnictide Weyl semimetals
Liang Wu, S. Patankar, T. Morimoto +6
Although Weyl fermions have proven elusive in high-energy physics, their existence as emergent quasiparticles has been predicted in certain crystalline solids in which either inver…
Tuning ultrafast electron thermalization pathways in a van der Waals heterostructure
Qiong Ma, Trond I. Andersen, Nityan L. Nair +11
Ultrafast electron thermalization - the process leading to Auger recombination, carrier multiplication via impact ionization and hot carrier luminescence - occurs when optically ex…
Quantum oscillations suggest hidden quantum phase transition in the cuprate superconductor PrCuO
Nicholas P. Breznay, Ross D. McDonald, Yoshiharu Krockenberger +8
For both electron- and hole-doped cuprates, superconductivity appears in the vicinity of suppressed broken symmetry order, suggesting that quantum criticality plays a vital role in…
Magnetic torque anomaly in the quantum limit of the Weyl semi-metal NbAs
Philip J. W. Moll, Andrew C. Potter, Brad Ramshaw +9
Electrons in materials with linear dispersion behave as massless Weyl- or Dirac-quasiparticles, and continue to intrigue physicists due to their close resemblance to elusive ultra-…
Transport evidence for Fermi-arc mediated chirality transfer in the Dirac semimetal CdAs
Philip J. W. Moll, Nityan L. Nair, Tony Helm +4
Dirac semi-metals show a linear electronic dispersion in three dimension described by two copies of the Weyl equation, a theoretical description of massless relativistic fermions.…
Competing Channels for Hot Electron Cooling in Graphene
Qiong Ma, Nathaniel M. Gabor, Trond I. Andersen +4
We report on temperature dependent photocurrent measurements of high-quality dual-gated monolayer graphene (MLG) p-n junction devices. A photothermoelectric (PTE) effect governs th…
Observation of suppressed terahertz absorption in photoexcited graphene
A. J. Frenzel, C. H. Lui, W. Fang +5
When light is absorbed by a semiconductor, photoexcited charge carriers enhance the absorption of far-infrared radiation due to intraband transitions. We observe the opposite behav…
Hot Carrier-Assisted Intrinsic Photoresponse in Graphene
Nathaniel M. Gabor, Justin C. W. Song, Qiong Ma +6
Graphene is a new material showing high promise in optoelectronics, photonics, and energy-harvesting applications. However, the underlying physical mechanism of optoelectronic resp…