TY - JOUR
T1 - Pseudogap phase of cuprate superconductors confined by Fermi surface topology
AU - Doiron-Leyraud, N.
AU - Cyr-Choinière, O.
AU - Badoux, S.
AU - Ataei, A.
AU - Collignon, C.
AU - Gourgout, A.
AU - Dufour-Beauséjour, S.
AU - Tafti, F. F.
AU - Laliberté, F.
AU - Boulanger, M. E.
AU - Matusiak, M.
AU - Graf, D.
AU - Kim, M.
AU - Zhou, J. S.
AU - Momono, N.
AU - Kurosawa, T.
AU - Takagi, H.
AU - Taillefer, Louis
N1 - Publisher Copyright:
© 2017, The Author(s).
PY - 2017/12/1
Y1 - 2017/12/1
N2 - The properties of cuprate high-temperature superconductors are largely shaped by competing phases whose nature is often a mystery. Chiefly among them is the pseudogap phase, which sets in at a doping p* that is material-dependent. What determines p* is currently an open question. Here we show that the pseudogap cannot open on an electron-like Fermi surface, and can only exist below the doping pFS at which the large Fermi surface goes from hole-like to electron-like, so that p* ≤ pFS. We derive this result from high-magnetic-field transport measurements in La1.6−xNd0.4SrxCuO4 under pressure, which reveal a large and unexpected shift of p* with pressure, driven by a corresponding shift in pFS. This necessary condition for pseudogap formation, imposed by details of the Fermi surface, is a strong constraint for theories of the pseudogap phase. Our finding that p* can be tuned with a modest pressure opens a new route for experimental studies of the pseudogap.
AB - The properties of cuprate high-temperature superconductors are largely shaped by competing phases whose nature is often a mystery. Chiefly among them is the pseudogap phase, which sets in at a doping p* that is material-dependent. What determines p* is currently an open question. Here we show that the pseudogap cannot open on an electron-like Fermi surface, and can only exist below the doping pFS at which the large Fermi surface goes from hole-like to electron-like, so that p* ≤ pFS. We derive this result from high-magnetic-field transport measurements in La1.6−xNd0.4SrxCuO4 under pressure, which reveal a large and unexpected shift of p* with pressure, driven by a corresponding shift in pFS. This necessary condition for pseudogap formation, imposed by details of the Fermi surface, is a strong constraint for theories of the pseudogap phase. Our finding that p* can be tuned with a modest pressure opens a new route for experimental studies of the pseudogap.
UR - https://www.scopus.com/pages/publications/85041862370
U2 - 10.1038/s41467-017-02122-x
DO - 10.1038/s41467-017-02122-x
M3 - Journal article
C2 - 29229909
AN - SCOPUS:85041862370
SN - 2041-1723
VL - 8
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 2044
ER -