Nematicity in stripe-ordered cuprates probed via resonant x-ray scattering

Spatial distribution of superconducting and charge-density-wave order parameters in cuprates and its influence on the quasiparticle tunnel current (Review Article)

“…As a result, there emerges the 2 C (nematic or smectic) charge order, which has already been found not only in high-c T oxides but also in iron-based superconductors [22,[81][82][83][84][85][86]. The relevant experiments for cuprates demonstrate that the symmetry Spatial distribution of superconducting and charge-density-wave order parameters in cuprates violation is not mandatory.…”

Vestigial nematicity from spin and/or charge order in the cuprates

“…In addition, in YBCO, [26][27][28][29][30][31][32][33][34] there is a strongly nematic region of the phase diagram in a range of temperatures in which neither SDW nor CDW order is well developed, but it has been suggested that there may be two distinct nematic phases -one associated with "vestigial" SDW and the other with vestigial CDW order. Furthermore, there is evidence of nematicity in 214 materials in the fluctuating stripes regime.…”

“…Furthermore, there is evidence of nematicity in 214 materials in the fluctuating stripes regime. 3,27 Given that one never sees true long-range CDW or SDW order, it is also clearly important to understand the effect of quenched randomness -"disorder" -on all these properties.…”

“…temperature, doping, crystal structures, etc.). [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] Of these, Ising nematic order, i.e. the spontaneous breaking of either a C 4 symmetry to C 2 or the breaking of a mirror symmetry which occurs as a result of a partial melting of a unidirectional CDW or SDW phase, is the most directly related to these same developments.…”

Remarkable Stability of Charge Density Wave Order inLa1.875Ba0.125CuO4Chen1, Thampy2, Mazzoli3 et al. 2016Phys. Rev. Lett.434472View full textAdd to dashboardCite

“…However, STS is surface sensitive and has never achieved imaging over a sufficiently large and flat surface area for various non-cleavable cuprates including La 2−x Ba x CuO 4 [62]. This is particularly significant in view of work suggesting that the "214" family of cuprates might host a qualitatively different type of CDW order [63]. Furthermore, XPCS is sensitive to fluctuations that are faster than the measurement time, whereas STS is not.…”