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SUMMARY:THZ Control of Superconductivity
DTSTART:20101213T161500
DTSTAMP:20260414T132341Z
UID:d259413dfce308b0e4a332f0aa0288c3e9505c4a3ab532f71a5f822f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Andrea Cavalleri\nOne of the most intriguing features of
  some high-temperature cuprate superconductors is the competition between 
 spin- and charge-order\, akin to a Wigner crystal\, and superconductivity.
  Both effects appear in different regions of the phase diagram and the tra
 nsition between these two states is often believed to contain important hi
 nts about the mistery of High-Tc superconductivity. We use mid-infrared fe
 mtosecond pulses to transform one such stripe-ordered compound\, La1.675Eu
 0.2Sr0.125CuO4\, into a transient three-dimensional superconductor. The em
 ergence of coherent interlayer transport is evidenced by the prompt appear
 ance of a Josephson plasma resonance in the c-axis optical properties. An 
 upper limit for the timescale needed to form the superconducting phase is 
 estimated to be 1-2 ps\, significantly faster than expected. 
LOCATION:CE 1 1 https://plan.epfl.ch/?room==CE%201%201
STATUS:CONFIRMED
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