Absence of Orbital Currents in Superconducting<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>YBa</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>8</mml:mn></mml:msub></mml:math>Using a Zeeman-Perturbed Nuclear-Quadrupole-Resonance Technique

Strässle, S.; Graneli, B.; Mali, M.; Roos, J.; Keller, H.

doi:10.1103/physrevlett.106.097003

Cited by 56 publications

(62 citation statements)

References 31 publications

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“…3 and 10 does not produce any field at the Ba site of the compound YBa 2 Cu 4 O 8 studied in Ref. 42 if the moments point along c*. It has been proposed that the magnetic order observed in our experiments results from circulating charge currents rather than local moments 24,32 .…”

Section: Discussionmentioning

confidence: 47%

“…43 This considerable uncertainty in the quantitative estimation of internal fields does not appear to have been taken into account in the upper bound estimate in Ref. 42.…”

Section: Discussionmentioning

confidence: 99%

“…Point-dipole calculations as performed in Ref. 42 might then yield rather inaccurate estimates of the true magnetic field at the Ba site.…”

Section: Discussionmentioning

confidence: 99%

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Magnetic order in the pseudogap phase of HgBa2CuO4+δstudied by spin-polarized neutron diffraction

et al. 2011

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(2008)], this establishes the universal existence of a genuine novel magnetic phase in underdoped cuprates with high maximal Tc (above 90 K at optimal doping). Here we report a systematic study of an underdoped Hg1201 sample (Tc = 75 K), the result of which is consistent with the previously established doping dependence of the magnetic signal. We present an assumption-free analysis of all the data available for Hg1201. Depending on how the hole concentration is estimated, comparison with the results for YBCO leads to different competition scenarios between the q = 0 magnetic order and the spin-density-wave order found in heavily underdoped YBCO.

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Section: Discussionmentioning

confidence: 47%

“…43 This considerable uncertainty in the quantitative estimation of internal fields does not appear to have been taken into account in the upper bound estimate in Ref. 42.…”

Section: Discussionmentioning

confidence: 99%

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Magnetic order in the pseudogap phase of HgBa2CuO4+δstudied by spin-polarized neutron diffraction

et al. 2011

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“…Work by Strässle et al 9 sets an upper bound of less than 1G for the field at the Barium site of YBCO 248. However, since neutron scattering is not available for this material, this bound cannot be directly compared with a predicted magnitude.…”

Section: Resultsmentioning

confidence: 99%

Observable NMR signal from circulating current order in YBCO

Lederer

Kivelson

2012

Phys. Rev. B

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“…Indeed it is fundamental to estimate the value of h since NMR/NQR 21,22 and µSR 23,24 experiments put several bounds on its maximum value. An estimate of the maximum modules of h 3 can be obtained by calculating its value at the center of the skyrmion.…”

Section: Structure Of the Skyrmion Latticementioning

confidence: 99%

Evidence for Skyrmions in the High-Temperature Superconductors

Vargas-Paredes

Cariglia

Doria

et al. 2013

J Supercond Nov Magn

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We claim that the charge density wave recently found by resonant soft x-ray scattering in layered copper oxides is the tetragonal symmetry defined by the distance between neighbor Cu 3+ ions in the CuO2 layer that determines the critical temperature. We find evidence that this tetragonal symmetry is a skyrmionic state, which is responsible for an unusual magnetic order and charge flow in the layers that leads to the breaking of the time reversal symmetry below the pseudogap line. The core of the skyrmions form pockets of local magnetic field piercing the superconducting layers in opposite direction to the rest of the unit cell.

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Absence of Orbital Currents in SuperconductingYBa2Cu4O8Using a Zeeman-Perturbed Nuclear-Quadrupole-Resonance Technique

Abstract: Absence of orbital currents in superconducting YBa

Cited by 56 publications

References 31 publications

Magnetic order in the pseudogap phase of HgBa2CuO4+δstudied by spin-polarized neutron diffraction

Magnetic order in the pseudogap phase of HgBa2CuO4+δstudied by spin-polarized neutron diffraction

Observable NMR signal from circulating current order in YBCO

Evidence for Skyrmions in the High-Temperature Superconductors

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