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Cooperative response of static spin-stripe order and superconductivity to non-magnetic impurities in cuprates | Z. Guguchia
; B. Roessli
; R. Khasanov
; A. Amato
; E. Pomjakushina
; K. Conder
; Y.J. Uemura
; J.M. Tranquada
; H. Keller
; A. Shengelaya
; | Date: |
18 Apr 2017 | Abstract: | Cuprate high-temperature superconductors (HTSs) have complex phase diagrams
with multiple competing ordered phases. Understanding to which degree charge,
spin, and superconducting orders compete or coexist is paramount for
elucidating the microscopic pairing mechanism in the cuprate HTSs. Here, we
report muon-spin rotation and neutron-scattering experiments on non-magnetic Zn
impurity effects on the static spin-stripe order and superconductivity of the
La214 cuprates. Remarkably, it was found that in these systems the spin-stripe
ordering temperature T_so decreases linearly with Zn doping y and disappears at
y = 3-4 %, demonstrating the extreme sensitivity of static spin-stripe order to
impurities within a CuO_2 plane. Moreover, T_so is suppressed in the same
manner as the superconducting transition temperature T_c by Zn impurities.
These results suggest that the stripe and SC orders may have a common physical
mechanism and are intertwined. | Source: | arXiv, 1704.5195 | Services: | Forum | Review | PDF | Favorites |
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