期刊
SCIENCE
卷 331, 期 6014, 页码 189-191出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1197294
关键词
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资金
- Max Planck Society
- University of Hamburg
- Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) [19104008]
- European Young Investigator Award
- Grants-in-Aid for Scientific Research [19104008] Funding Source: KAKEN
One of the most intriguing features of some high-temperature cuprate superconductors is the interplay between one-dimensional striped spin order and charge order, and superconductivity. We used mid-infrared femtosecond pulses to transform one such stripe-ordered compound, nonsuperconducting La1.675Eu0.2Sr0.125CuO4, into a transient three-dimensional superconductor. The emergence of coherent interlayer transport was evidenced by the prompt appearance of a Josephson plasma resonance in the c-axis optical properties. An upper limit for the time scale needed to form the superconducting phase is estimated to be 1 to 2 picoseconds, which is significantly faster than expected. This places stringent new constraints on our understanding of stripe order and its relation to superconductivity.
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