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112 papers · 1 filter
Information carried by electromagnetic radiation launched from accelerated polarization currents
John Singleton, Andrea C. Schmidt, Connor Bailey +2
We show experimentally that a continuous, linear, dielectric antenna in which a superluminal polarization-current distribution accelerates can be used to transmit a broadband signa…
Effect of pressure on the pseudogap and charge-density-wave phases of the cuprate LaNdSrCuO probed by thermopower measurements
A. Gourgout, A. Ataei, M. -E. Boulanger +9
We report thermopower measurements under hydrostatic pressure on the cuprate superconductor LaNdSrCuO (Nd-LSCO), at low-temperature in the normal state ac…
The Magnetoelastic Distortion of Multiferroic BiFeO in the Canted Antiferromagnetic State
Toomas Rõõm, Johan Viirok, Laur Peedu +17
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO in its high-field canted antiferromagnetic state is well described by a spin model that violat…
Absence of superconductivity in topological metal ScInAu
J. M. DeStefano, G. P. Marciaga, J. B. Flahavan +4
The Heusler compound ScInAu was previously reported to have a superconducting ground state with a critical temperature of 3.0 K. Recent high throughput calculations have also p…
High Fermi velocities and small cyclotron masses in LaAlGe
Zhixiang Hu, Qianheng Du, Yu Liu +2
We report quantum oscillation measurements of LaAlGe, a Lorentz-violating type-II Weyl semimetal with tilted Weyl cones. Very small quasiparticle masses and very high Fermi velocit…
Electrically controlled emission from singlet and triplet exciton species in atomically thin light emitting diodes
Andrew Y. Joe, Luis A. Jauregui, Kateryna Pistunova +15
Excitons are composite bosons that can feature spin singlet and triplet states. In usual semiconductors, without an additional spin-flip mechanism, triplet excitons are extremely i…