Corpus ID: 237532586

Terahertz phase slips in striped La$_{2-x}$Ba$_x$CuO$_4$

@inproceedings{Fu2021TerahertzPS,
  title={Terahertz phase slips in striped La\$\_\{2-x\}\$Ba\$\_x\$CuO\$\_4\$},
  author={Danni Fu and D. Nicoletti and Michael Fechner and Michele Buzzi and G. D. Gu and Andrea Cavalleri},
  year={2021}
}
Interlayer transport in high-TC cuprates is mediated by superconducting tunneling across the CuO2 planes. For this reason, the terahertz frequency optical response is dominated by one or more Josephson plasma resonances and becomes highly nonlinear at fields for which the tunneling supercurrents approach their critical value, IC. These large terahertz nonlinearities are in fact a hallmark of superconducting transport. Surprisingly, however, they have been documented in La2-xBaxCuO4 also above… Expand

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References

SHOWING 1-10 OF 33 REFERENCES
Magnetic-Field Tuning of Light-Induced Superconductivity in Striped La_{2-x}Ba_{x}CuO_{4}.
TLDR
The data are interpreted as an indication that optically enhanced interlayer coupling in La_{2-x}Ba_{x}CuO_{4} does not originate from a simple optical melting of stripes, as previously hypothesized, and it is speculated that the photoinduced state may emerge from activated tunneling between optically excited stripes in adjacent planes. Expand
Probing optically silent superfluid stripes in cuprates
TLDR
The findings suggest the formation of a peculiar spatially modulated superconducting state called the pair-density wave, in which nonlinear mixing of optically silent tunneling modes drives large dipole-carrying supercurrents. Expand
Long-Range Incommensurate Charge Fluctuations in (Y,Nd)Ba2Cu3O6+x
A State of High Tc Superconductivity There are strong indications that high-temperature superconductivity in the cuprates is formed amid competing orders, but only two have been observed… Expand
Resolving the effects of frequency-dependent damping and quantum phase diffusion in YBa 2 Cu 3 O 7-x Josephson junctions
We report on the study of the phase dynamics of high critical temperature superconductor Josephson junctions. We realized YBa$_2$Cu$_3$O$_{7-x}$ (YBCO) grain boundary (GB) biepitaxial junctions in… Expand
Probing coherent charge fluctuations in YBa2Cu3O6+x at wavevectors outside the light cone
The possible existence of phase-incoherent superconductivity in the normal state of cuprates is one of the grand unsolved problems of modern condensed matter physics. Optical spectroscopy shows that… Expand
Optically induced superconductivity in striped La2‐xBaxCuO4 by polarization‐selective excitation in the near infrared
We show that superconducting interlayer coupling, which coexists with and is depressed by stripe order in La1.885Ba0.115CuO4, can be enhanced by excitation with near-infrared laser pulses. For… Expand
Stripe Order in Superconducting La2βˆ’xBaxCuO4 (0.095 x 0.155)
The correlations between stripe order, superconductivity, and crystal structure in La{sub 2-x}Ba{sub x}CuO{sub 4} single crystals have been studied by means of x-ray and neutron diffraction as well… Expand
Evidence for stripe correlations of spins and holes in copper oxide superconductors
ONE of the long-standing mysteries associated with the high-temperature copper oxide superconductors concerns the anomalous suppression1 of superconductivity in La2-xBaxCuO4 (and certain related… Expand
Phase dynamics in a stack of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
The Josephson effect is a phenomenon of current flow across two weakly linked superconductors separated by a thin barrier, i.e.?a Josephson junction, associated with coherent quantum tunneling of… Expand
Striped superconductors: how spin, charge and superconducting orders intertwine in the cuprates
Recent transport experiments in the original cuprate high temperature superconductor, La2βˆ’xBaxCuO4, have revealed a remarkable sequence of transitions and crossovers that give rise to a form of… Expand
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