Evolution of magnetic stripes under uniaxial stress in La$_{1.885}$Ba$_{0.115}$CuO$_4$ studied by neutron scattering

Kamminga, Machteld E.; Krighaar, Kristine M. L.; Rømer, Astrid T.; Sandberg, Lise Ø.; Deen, P. P.; Boehm, Martin; Gu, G. D.; Tranquada, J. M.; Lefmann, Kim

doi:10.48550/arxiv.2203.00558

Cited by 2 publications

(2 citation statements)

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“…Notably, that the magnetic correlation length and SDW onset temperature, as well as the coupling between CDW order and superconductivity remain unchanged by uniaxial pressure application, suggests that in LSCO charge-spin stripe order and unconventional superconductivity are deeply intertwined. Interestingly, for La 2Àx Ba x CuO 4 (LBCO) a different behavior has been observed when uniaxial pressure is applied along an in-plane axis close to the Cu-Cu bond direction, demonstrating direct competition between superconductivity and magnetic order 49,50 . Thus, further uniaxial pressure studies on LSCO and LBCO along different crystal directions will be crucial to gain new insight into the coupling between stripe order and unconventional superconductivity.…”

Section: Discussionmentioning

confidence: 99%

Single-domain stripe order in a high-temperature superconductor

et al. 2022

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The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials. A model example is unconventional superconductivity, which is widely believed to arise from the coupling of electrons via spin excitations. In cuprate high-temperature superconductors, the interplay of charge and spin degrees of freedom is also reflected in a zoo of charge and spin-density wave orders that are intertwined with superconductivity. A key question is whether the different types of density waves merely coexist or are indeed directly coupled. Here we profit from a neutron scattering technique with superior beam-focusing that allows us to probe the subtle spin-density wave order in the prototypical high-temperature superconductor La$${}_{1.88}$$ 1.88 Sr$${}_{0.12}$$ 0.12 CuO$${}_{4}$$ 4 under applied uniaxial pressure to demonstrate that the two density waves respond to the external tuning parameter in the same manner. Our result shows that suitable models for high-temperature superconductivity must equally account for charge and spin degrees of freedom via uniaxial charge-spin stripe fluctuations.

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Section: Discussionmentioning

confidence: 99%

Single-domain stripe order in a high-temperature superconductor

et al. 2022

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“…Notably, that the magnetic correlation length and SDW onset temperature, as well as the coupling between CDW order and superconductivity remain unchanged by uniaxial pressure application, suggests that in LSCO charge-spin stripe order and unconventional superconductivity are deeply in-unstrained strained tertwined. Interestingly, for La 2−x Ba x CuO 4 (LBCO) a different behavior has been observed when uniaxial pressure is applied along an in-plane axis close to the Cu-Cu bond direction, demonstrating direct competition between superconductivity and magnetic order 51,52 . Thus, further uniaxial pressure studies on LSCO and LBCO along different crystal directions will be crucial to gain new insight into the coupling between stripe order and unconventional superconductivity.…”

mentioning

confidence: 99%