Consequences of stripe order for the transport properties of rare earth doped La2−xSrxCuO4

Hücker, M.; Kataev, V.; Pommer, J.; Baberski, O.; Schlabitz, W.; Büchner, B.

doi:10.1016/s0022-3697(98)00115-2

Cited by 32 publications

(39 citation statements)

References 8 publications

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“…58 Instead, on cooling there is a continuous deviation from a linear temperature dependence, with a significant upturn below 50 to 60 K. In light of that, the correlation between resistivity and LTT-like volume fraction above 80 K in our Nd-doped x = 0.15 sample should perhaps come as no surprise.…”

Section: Correlation Between Resistivity and Structurementioning

confidence: 72%

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
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We present the results of neutron-scattering studies on various aspects of crystalline and magnetic structure in single crystals of La1.6−xNd0.4SrxCuO4 with x = 0.12 and 0.15. In particular, we have reexamined the degree of stripe order in an x = 0.12 sample. Measurements of the width for an elastic magnetic peak show that it saturates at a finite value below 30 K, corresponding to a spin-spin correlation length of 200Å. A model calculation indicates that the differing widths of magnetic and (previously reported) charge-order peaks, together with the lack of commensurability, can be consistently explained by disorder in the stripe spacing. Above 30 K (i.e., above the point at which a recent muon spin-rotation study has found a loss of static magnetic order), the width of the nominally elastic signal begins to increase. Interpreting the signal as critical scattering from slowly fluctuating spins, the temperature dependence of the width is consistent with renormalized classical behavior of a 2-dimensional anisotropic Heisenberg antiferromagnet. Inelastic scattering measurements show that incommensurate spin excitations survive at and above 50 K, where the elastic signal is neglible. Given that the stripe order is believed to be pinned by the low-temperature tetragonal (LTT) crystal structure, we have also investigated the transition near 70 K from the low-temperature orthorhombic (LTO) structure. We show that our x = 0.12 crystal passes through an intervening less-orthorhombic phase, before reaching the LTT at ∼ 40 K, whereas the x = 0.15 crystal goes directly from LTO to LTT, with coexistence of the two phases over a range of ∼ 7 K. Sharp Bragg peaks in the LTT phase of the x = 0.15 crystal indicate a domain size of > ∼ 1000Å, with no obvious evidence for LTO domains; hence, the coexistence of stripe order and superconductivity in this sample cannot be explained by a mixture of crystalline phases. Finally, we present scattering evidence for small LTT-like domains in the LTO phase of the x = 0.15 sample. A correlation between the volume fraction of such domains and deviations of in-plane resistivity from linear T dependence suggest that charge stripes interact with these domains within the LTO matrix.75.50. Ee, 75.30.Fv, 71.45.Lr, 71.27+a

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Section: Correlation Between Resistivity and Structurementioning

confidence: 72%

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
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“…Indeed, all cuprates show SDW modulations at p < 0.08, without any CDW modulations.) Both Hall and Seebeck coefficients drop at low temperature (with S < 0) at p = 0.15 [43,44], while both R H (T) and S(T ) grow monotonically as T → 0 (and remain positive) at p = 0.20 [27,39]. Hence in Nd-LSCO, p CDW < 0.20, separated from p by an interval of at least 0.03.…”

Section: B Cdw Critical Pointmentioning

confidence: 94%

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

et al. 2017

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“…19,20 A change from positive to negative Hall and Seebeck coefficients in YBCO around this doping region led to the interpretation that the Fermi pocket must have electron like character. [21][22][23][24][25] Negative Seebeck and Hall coefficients are also observed in La 1.8−x Eu 0.2 Sr x CuO 4 and several other La-based cuprates 23,24,[26][27][28][29][30][31] that are known to exhibit charge and spin-stripe order [7][8][9][32][33][34][35][36][37][38][39][40][41][42][43] . This strongly suggested that charge and/or spin order may exist in YBCO as well.…”

Section: Introductionmentioning

confidence: 99%

Competing charge, spin, and superconducting orders in underdopedYBa2Cu3Oy

et al. 2014

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To explore the doping dependence of the recently discovered charge density wave (CDW) order in YBa2Cu3Oy, we present a bulk-sensitive high-energy x-ray study for several oxygen concentrations, including strongly underdoped YBa2Cu3O6.44. Combined with previous data around the so-called 1/8 doping, we show that bulk CDW order exists at least for hole concentrations (p) in the CuO2 planes of 0.078132. This implies that CDW order exists in close vicinity to the quantum critical point for spin density wave (SDW) order. In contrast to the pseudogap temperature T * , the onset temperature of CDW order decreases with underdoping to TCDW ∼ 90 K in YBa2Cu3O6.44. Together with a weakened order parameter this suggests a competition between CDW and SDW orders. In addition, the CDW order in YBa2Cu3O6.44 shows the same type of competition with superconductivity as a function of temperature and magnetic field as samples closer to p = 1/8. At low p the CDW incommensurability continues the previously reported linear increasing trend with underdoping. In the entire doping range the in-plane correlation length of the CDW order in b axis direction depends only very weakly on the hole concentration, and appears independent of the type and correlation length of the oxygen-chain order. The onset temperature of the CDW order is remarkably close to a temperature T † that marks the maximum of 1/(T1T ) in planar 63 Cu NQR/NMR experiments, potentially indicating a response of the spin dynamics to the formation of the CDW. Our discussion of these findings includes a detailed comparison to the charge stripe order in La2−x Bax CuO4.

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Consequences of stripe order for the transport properties of rare earth doped La2−xSrxCuO4

Cited by 32 publications

References 8 publications

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
View full text Add to dashboard Cite

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
View full text Add to dashboard Cite

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

Competing charge, spin, and superconducting orders in underdopedYBa2Cu3Oy

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Consequences of stripe order for the transport properties of rare earth doped La2−xSrxCuO4

Cited by 32 publications

References 8 publications

Glassy nature of stripe ordering inLa1.6−xNd0.4SrTranquada1, Ichikawa2, Uchida3 1999Phys. Rev. B157191190View full textAdd to dashboardCite

Glassy nature of stripe ordering inLa1.6−xNd0.4SrTranquada1, Ichikawa2, Uchida3 1999Phys. Rev. B157191190View full textAdd to dashboardCite

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

Competing charge, spin, and superconducting orders in underdopedYBa2Cu3Oy

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Resources

About

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
View full text Add to dashboard Cite

Glassy nature of stripe ordering inLa1.6−xNd0.4Sr
Tranquada
¹
,
Ichikawa
²
,
Uchida
³

1999
Phys. Rev. B
157
19
119
0
View full text Add to dashboard Cite