Photoinduced metastable state with modulated Josephson coupling strengths in Pr0.88LaCe0.12CuO4
Journal Article
·
· Physical Review B
- Peking Univ., Beijing (China); DOE/OSTI
- Peking Univ., Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
- Rice Univ., Houston, TX (United States)
- Peking Univ., Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
We report an intense near-infrared pump, c-axis terahertz probe measurement on an electron-doped cuprate superconductor Pr0.88LaCe0.12CuO4 with Tc = 22 K. The major effect of the intense pump is to induce a splitting of Josephson plasma edge below Tc, similar to the observation on hole-doped cuprate La1.905Ba0.095CuO4 in a superconducting state. The photoexcitation induced spectral change does not exhibit significant decay up to the longest measured time delay 210 ps. Furthermore, the result suggests that the intense near-infrared pump drives the system from a superconducting state with a uniform Josephson coupling to a metastable superconducting phase with modulated Josephson coupling strengths below Tc.
- Research Organization:
- Rice Univ., Houston, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012311
- OSTI ID:
- 1611757
- Alternate ID(s):
- OSTI ID: 1485527
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 22 Vol. 98; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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