Restoring interlayer Josephson coupling in by charge transfer melting of stripe order
- Diamond Light Source, Didcot (United Kingdom); Max Planck Inst. for the Structure and Dynamics of Matter, Hamburg (Germany); Univ. of Oxford (United Kingdom). Dept. of Physics
- Max Planck Inst. for the Structure and Dynamics of Matter, Hamburg (Germany) and Center for Free Electron Laser Science
- Diamond Light Source, Didcot (United Kingdom); Univ. of York (United Kingdom). Dept. of Physics
- Univ. of Oxford (United Kingdom). Dept. of Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). NSLS-II and Condensed Matter Physics and Materials Science Dept.
- Max Planck Inst. for the Structure and Dynamics of Matter, Hamburg (Germany) and Center for Free Electron Laser Science; Univ. of Oxford (United Kingdom). Dept. of Physics
- Diamond Light Source, Didcot (United Kingdom)
Here, we show that disruption of charge-density-wave (stripe) order by charge transfer excitation, enhances the superconducting phase rigidity in La1.885Ba0.115CuO4. Time-resolved resonant soft x-ray diffraction demonstrates that charge order melting is prompt following near-infrared photoexcitation whereas the crystal structure remains intact for moderate fluences. THz time-domain spectroscopy reveals that, for the first 2 ps following photoexcitation, a new Josephson plasma resonance edge, at higher frequency with respect to the equilibrium edge, is induced indicating enhanced superconducting interlayer coupling. Furthermore, the fluence dependence of the charge-order melting and the enhanced superconducting interlayer coupling are correlated with a saturation limit of ~0.5mJ/cm2. When using a combination of x-ray and optical spectroscopies we establish a hierarchy of timescales between enhanced superconductivity, melting of charge order, and rearrangement of the crystal structure.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704
- OSTI ID:
- 1336140
- Alternate ID(s):
- OSTI ID: 1259994
- Report Number(s):
- BNL-112614-2016-JA; PRBMDO; R&D Project: PO010; KC0201060
- Journal Information:
- Physical Review B, Vol. 93, Issue 22; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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