TY - JOUR
T1 - Collapse of superconductivity in cuprates via ultrafast quenching of phase coherence
AU - Boschini, F.
AU - Da Silva Neto, E. H.
AU - Razzoli, E.
AU - Zonno, M.
AU - Peli, Simone
AU - Day, R. P.
AU - Michiardi, M.
AU - Schneider, M.
AU - Schneider-Moser, Elisabeth Margarete Ute
AU - Zwartsenberg, B.
AU - Nigge, P.
AU - Zhong, R. D.
AU - Schneeloch, J.
AU - Gu, G. D.
AU - Zhdanovich, S.
AU - Mills, A. K.
AU - Levy, G.
AU - Jones, D. J.
AU - Giannetti, Claudio
AU - Damascelli, A.
PY - 2018
Y1 - 2018
N2 - The possibility of driving phase transitions in low-density condensates through the loss of phase coherence alone has far-reaching implications for the study of quantum phases of matter. This has inspired the development of tools to control and explore the collective properties of condensate phases via phase fluctuations. Electrically gated oxide interfaces1,2, ultracold Fermi atoms3,4and cuprate superconductors5,6, which are characterized by an intrinsically small phase stiffness, are paradigmatic examples where these tools are having a dramatic impact. Here we use light pulses shorter than the internal thermalization time to drive and probe the phase fragility of the Bi2Sr2CaCu2O8+δcuprate superconductor, completely melting the superconducting condensate without affecting the pairing strength. The resulting ultrafast dynamics of phase fluctuations and charge excitations are captured and disentangled by time-resolved photoemission spectroscopy. This work demonstrates the dominant role of phase coherence in the superconductor-to-normal state phase transition and offers a benchmark for non-equilibrium spectroscopic investigations of the cuprate phase diagram.
AB - The possibility of driving phase transitions in low-density condensates through the loss of phase coherence alone has far-reaching implications for the study of quantum phases of matter. This has inspired the development of tools to control and explore the collective properties of condensate phases via phase fluctuations. Electrically gated oxide interfaces1,2, ultracold Fermi atoms3,4and cuprate superconductors5,6, which are characterized by an intrinsically small phase stiffness, are paradigmatic examples where these tools are having a dramatic impact. Here we use light pulses shorter than the internal thermalization time to drive and probe the phase fragility of the Bi2Sr2CaCu2O8+δcuprate superconductor, completely melting the superconducting condensate without affecting the pairing strength. The resulting ultrafast dynamics of phase fluctuations and charge excitations are captured and disentangled by time-resolved photoemission spectroscopy. This work demonstrates the dominant role of phase coherence in the superconductor-to-normal state phase transition and offers a benchmark for non-equilibrium spectroscopic investigations of the cuprate phase diagram.
KW - Chemistry (all)
KW - Condensed Matter Physics
KW - Materials Science (all)
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - Chemistry (all)
KW - Condensed Matter Physics
KW - Materials Science (all)
KW - Mechanical Engineering
KW - Mechanics of Materials
UR - http://hdl.handle.net/10807/119386
UR - http://www.nature.com/nmat/
UR - https://arxiv.org/abs/1707.02305
U2 - 10.1038/s41563-018-0045-1
DO - 10.1038/s41563-018-0045-1
M3 - Article
SN - 1476-1122
VL - 17
SP - 416
EP - 420
JO - Nature Materials
JF - Nature Materials
ER -