Effect of stripe ordering on the anisotropic superconductivity in La1.6−xNd0.4SrxCuO4 single crystals

Transport properties of stripe-ordered high Tc cuprates

“…The unusual layer decoupling is not limited to the LBCO system. Ding et al [57] have observed strongly anisotropic diamagnetism above the bulk T c in La 1.6−x Nd 0.4 Sr x CuO 4 , especially for x = 0.15, similar to what has been reported for LBCO x = 1/8 [33], although the impact on the anisotropic resistivity is much more subtle [58]. A different sort of resistive anisotropy has been reported by Xiang et al [59] for La 1.6−x Nd 0.4 Sr x CuO 4 crystals with x ranging from 0.10 to 0.18.…”

Striped superconductors: how spin, charge and superconducting orders intertwine in the cuprates

“…In the case of La 1.6−x Nd 0.4 Sr x CuO 4 , evidence for dynamical layer decoupling is provided by measurements of the anisotropic onset of the Meissner effect [47]. In contrast, the resistivity ratio in this material [48] only reaches 10 3 ; this may be limited by enhanced in-plane resistivity due to disorder [49]. Moreover, an unexpectedly strong layer decoupling in the charge dynamics produced by the application of a transverse magnetic field in La 2−x Sr x CuO 4 has been observed [2], but only in the underdoped range of x where the magnetic field also induces spin stripe order [41,43].…”

Electronic interlayer coupling in the low-temperature tetragonal phase ofLa1.79Eu0.2Sr0.01Hücker1 2009Phys. Rev. B3040View full textAdd to dashboardCite

“…Recent resistivity data for stripe ordered La 1.48 Nd 0.4 Sr 0.12 CuO 4 provide strong evidence that this is indeed the case. 47 On the other hand, a feature of La 1.875 Ba 0.125 CuO 4 that is clearly distinct follows from the antiphase coupling of spin stripes across the charge stripes. In this case, even if spins are canted out of plane due to DM superexchange ͑which is still unknown͒, the net WFM of each plane cancels out because of the phase shifts by .…”