Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>T</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math>Superconductors

Savici, A. T.; Fukaya, A.; Gat-Malureanu, I. M.; Ito, T.; Russo, Peter L.; Uemura, Yohei; Wiebe, C. R.; Kyriakou, P. P.; MacDougall, G. J.; Rovers, M. T.; Luke, G. M.; Kojima, Kenji; Goto, Masahiro; Uchida, S.; Kadono, R.; Yamada, K.; Tajima, S.; Masui, T.; Eisaki, H.; Kaneko, Nobu‐Hisa; Greven, M.; Gu, Genda

doi:10.1103/physrevlett.95.157001

Cited by 56 publications

(40 citation statements)

References 20 publications

(17 reference statements)

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“…11 we compare the various critical temperatures of the SO phase, extracted by ND and χ measurements as well as by µSR in Ref. 69. There is good agreement for T SO from χ and µSR as well as from the SO-peak broadening in ND, whereas the onset temperatures of finite SO-peak intensity are higher.…”

Section: Comparison Of Critical Temperaturesmentioning

confidence: 72%

“…15 determined by ND are several times higher than the maximum bulk T c , with the caveat that truly static SO occurs at much lower temperatures, as confirmed by a number of µSR studies. 40,69,[81][82][83] The relatively low T c values, on the other hand, follow from a stronger suppression in the Nd-doped system. The substituion of La 3+ with the smaller Nd 3+ causes T c to go down even in the LTO phase, most likely as a consequence of the larger Φ.…”

Section: Comparison With Lbco Nd-lsco and Eu-lscomentioning

confidence: 99%

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Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
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The correlations between stripe order, superconductivity, and crystal structure in La2−x Bax CuO4 single crystals have been studied by means of x-ray and neutron diffraction as well as static magnetization measurements. The derived phase diagram shows that charge stripe order (CO) coexists with bulk superconductivity in a broad range of doping around x = 1/8, although the CO order parameter falls off quickly for x = 1/8. Except for x = 0.155, the onset of CO always coincides with the transition between the orthorhombic and the tetragonal low temperature structures. The CO transition evolves from a sharp drop at low x to a more gradual transition at higher x, eventually falling below the structural phase boundary for optimum doping. With respect to the interlayer CO correlations, we find no qualitative change of the stripe stacking order as a function of doping, and in-plane and out-of-plane correlations disappear simultaneously at the transition. Similarly to the CO, the spin stripe order (SO) is also most pronounced at x = 1/8. Truly static SO sets in below the CO and coincides with the first appearance of in-plane superconducting correlations at temperatures significantly above the bulk transition to superconductivity (SC). Indications that bulk SC causes a reduction of the spin or charge stripe order could not be identified. We argue that CO is the dominant order that is compatible with SC pairing but competes with SC phase coherence. Comparing our results with data from the literature, we find good agreement if all results are plotted as a function of x ′ instead of the nominal x, where x ′ represents an estimate of the actual Ba content, extracted from the doping dependence of the structural transition between the orthorhombic phase and the tetragonal high-temperature phase.

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Section: Comparison Of Critical Temperaturesmentioning

confidence: 72%

Section: Comparison With Lbco Nd-lsco and Eu-lscomentioning

confidence: 99%

Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
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“…The dramatic evolution of Fermi surface with overdoping in LSCO may provide a chance for magnetic moments to be interacting and correlated in a preferred direction, in some composition window. Several experimental observations provide some support to this scenario8910111213141516. The temperature dependence of magnetic susceptibility ( χ ) in overdoped LSCO crystals indicated the absence of local magnetic moments below the critical doping x c ≈ 0.18, and dramatic increase in their density with further overdoping89101112.…”

mentioning

confidence: 85%

Search for ferromagnetic order in overdoped copper-oxide superconductors

Lauter

Ambaye

et al. 2017

Sci Rep

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In copper-oxides that show high-temperature superconductivity (HTS), the critical temperature (Tc) has a dome-shaped doping dependence. The cause of demise of both Tc and superfluid density ns on the overdoped side is a major puzzle. A recent study of transport and diamagnetism in a large number of overdoped La2−xSrxCuO4 (LSCO) films shows that this cannot be accounted for by disorder within the conventional Bardeen-Cooper-Schrieffer theory. This brings to focus an alternative explanation — competition of HTS with ferromagnetic order, fluctuating in superconducting samples and static beyond the superconductor-to-metal transition. Here, we examine this proposal by growing single-crystal LSCO thin films with doping on both sides of the transition by molecular beam epitaxy, and using polarized neutron reflectometry to measure their magnetic moments. In a heavily overdoped, metallic but non-superconducting LSCO (x = 0.35) film, the spin asymmetry of reflectivity shows a very small static magnetic moment (~2 emu/cm3). Less-doped, superconducting LSCO films show no magnetic moment in neutron reflectivity, both above and below Tc. Therefore, the collapse of HTS with overdoping is not caused by competing ferromagnetic order.

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“…While a magnetic field applied parallel to the c-axis results in a discernible relaxation from magnetism, which is extended to higher doping and higher temperature by the field, the effect is greatly diminished with increasing p [39]. Hence the effect of Cu magnetic moments on the relaxation rate of the TF-µSR signal at high magnetic field is easily recognizable.…”

Section: High Magnetic Fieldmentioning

confidence: 97%

Charge order, superconducting correlations, and positive muons

Sonier

2015

Journal of Magnetism and Magnetic Materials

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The recent discoveries of short-range charge-density wave fluctuations in the normal state of several hole-doped cuprate superconductors constitute a significant addition to the known intrinsic properties of these materials. Besides likely being associated with the normal-state pseudogap, the charge-density wave order presumably influences the build-up of known superconducting correlations as the temperature is lowered toward the superconducting state. As a pure magnetic probe, muon spin rotation (µSR) is not directly sensitive to charge order, but may sense its presence via the effect it has on the magnetic dipolar coupling of the muon with the host nuclei at zero or low magnetic field. At higher field where µSR is completely blind to the effects of charge order, experiments have revealed a universal inhomogeneous normal-state response extending to temperatures well above T c . The measured inhomogeneous line broadening has been attributed to regions of superconducting correlations that exhibit varying degrees of fluctuation diamagnetism. Here, the compatibility of these results with other measurements showing charge order correlations or superconducting fluctuations above T c is discussed.

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Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High-TcSuperconductors

Cited by 56 publications

References 20 publications

Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
View full text Add to dashboard Cite

Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
View full text Add to dashboard Cite

Search for ferromagnetic order in overdoped copper-oxide superconductors

Charge order, superconducting correlations, and positive muons

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Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High-TcSuperconductors

Cited by 56 publications

References 20 publications

Stripe order in superconducting La2−xBaxCuOHücker1, Zimmermann2, Gu3 et al. 2011Phys. Rev. BSelf Cite300434112View full textAdd to dashboardCite

Stripe order in superconducting La2−xBaxCuOHücker1, Zimmermann2, Gu3 et al. 2011Phys. Rev. BSelf Cite300434112View full textAdd to dashboardCite

Search for ferromagnetic order in overdoped copper-oxide superconductors

Charge order, superconducting correlations, and positive muons

Contact Info

Product

Resources

About

Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
View full text Add to dashboard Cite

Stripe order in superconducting La2−xBaxCuO
Hücker
¹
,
Zimmermann
²
,
Gu
³

et al. 2011
Phys. Rev. B
Self Cite
300
43
411
2
View full text Add to dashboard Cite