Remarkable Stability of Charge Density Wave Order in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>La</mml:mi></mml:mrow><mml:mrow><mml:mn>1.875</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Ba</mml:mi></mml:mrow><mml:mrow><mml:mn>0.125</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>CuO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></m

Chen, X. M.; Thampy, Vivek; Mazzoli, Claudio; Barbour, Andi; Miao, H.; Gu, Genda; Cao, Yue; Tranquada, J. M.; Dean, M. P. M.; Wilkins, S. B.

doi:10.1103/physrevlett.117.167001

Cited by 44 publications

(53 citation statements)

References 65 publications

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“…in La2CuO4+y are aligned in the b-axis direction and form a smectic phase in the same crystal while in underdoped YBa2Cu3O6+y and Hg1201 form a nematic phase. These results support the increasing accumulating experimental evidence that the CDW character in cuprates changes in different families (45)(46)(47)(48).…”

Section: Discussionsupporting

confidence: 89%

X-Rays Writing/Reading of Charge Density Waves in the CuO2 Plane of a Simple Cuprate Superconductor

et al. 2017

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Abstract:It is now well established that superconductivity in cuprates competes with charge modulations giving an electronic phase separation at nanoscale. More specifically, superconducting electronic current takes root in the available free space left by electronic charge ordered domains, called charge density wave (CDW) puddles. This means that CDW domain arrangement plays a fundamental role in the mechanism of high temperature superconductivity in cuprates. Here we report about the possibility of controlling the population and spatial organization of the charge density wave puddles in a single crystal La 2 CuO 4+y through X-ray illumination and thermal treatments. We apply a pump-probe method-based on X-ray illumination as a pump and X-ray diffraction as a probe-setting a writing/reading procedure of CDW puddles. Our findings are expected to allow new routes for advanced design and manipulation of superconducting pathways in new electronics.

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Section: Discussionsupporting

confidence: 89%

X-Rays Writing/Reading of Charge Density Waves in the CuO2 Plane of a Simple Cuprate Superconductor

et al. 2017

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“…With increas-ing temperature the CDW correlation length decreases and the CDW Bragg peak disappears coincident with T LTT = 54 K (Fig. S3, [29,30,32,[39][40][41]). The temperature dependence of the CDW peak intensity is explicitly compared with the LTT to LTO structural phase transition in Fig.3 (a).…”

Section: Althoughmentioning

confidence: 95%

“…Such an approach has been used extensively to study the average CDW properties [5][6][7][8][9][29][30][31]. The very high coherent flux (10 13 photons/s) at the 23-ID-1 beam line at the National Synchrotron Light Source II opens up the possibility of observing coherent interference between the domains of a weakly scattering order parameter such as cuprate CDWs [32,33]. This was configured to produce a beam of approximately 20 µm at the sample overfilling the 10 µm pinhole in the Au mask attached to the sample (see Methods).…”

Section: Althoughmentioning

confidence: 99%

Charge density wave memory in a cuprate superconductor

et al. 2019

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Although CDW correlations are a ubiquitous feature of the superconducting cuprates, their disparate properties suggest a crucial role for pinning the CDW to the lattice. Here, we report coherent resonant X-ray speckle correlation analysis, which directly determines the reproducibility of CDW domain patterns in La 1.875 Ba 0.125 CuO 4 (LBCO 1/8) with thermal cycling. While CDW order is only observed below 54 K, where a structural phase transition creates inequivalent Cu-O bonds, we discover remarkably reproducible CDW domain memory upon repeated cycling to far higher temperatures. That memory is only lost on cycling to 240(3) K, which recovers the four-fold symmetry of the CuO 2 planes. We infer that the structural features that develop below 240 K determine the CDW pinning landscape below 54 K. This opens a view into the complex coupling between charge and lattice degrees of freedom in superconducting cuprates.

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“…How do we relate these anomalies in the lattice dynamics to the underlying CDW correlations in the cuprates? Upon cooling, La 1.875 Ba 0.125 CuO 4 goes through a transition at T CDW = 55 K below which long-ranged (∼210Å) static CDW order emerges [24,31,37,[40][41][42][43]. The phonon narrowing effect outlined in Sec.…”

Section: Relationship Between Phonons and Cdw Propertiesmentioning

confidence: 99%

Incommensurate Phonon Anomaly and the Nature of Charge Density Waves in Cuprates

et al. 2018

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While charge density wave (CDW) instabilities are ubiquitous to superconducting cuprates, the different ordering wavevectors in various cuprate families have hampered a unified description of the CDW formation mechanism. Here we investigate the temperature dependence of the low energy phonons in the canonical CDW ordered cuprate La1.875Ba0.125CuO4. We discover that the phonon softening wavevector associated with CDW correlations becomes temperature dependent in the hightemperature precursor phase and changes from a wavevector of 0.238 reciprocal space units (r.l.u.) below the ordering transition temperature up to 0.3 r.l.u. at 300 K. This high-temperature behavior shows that "214"-type cuprates can host CDW correlations at a similar wavevector to previously reported CDW correlations in non-"214"-type cuprates such as YBa2Cu3O 6+δ . This indicates that cuprate CDWs may arise from the same underlying instability despite their apparently different low temperature ordering wavevectors. arXiv:1712.04554v2 [cond-mat.supr-con]

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Remarkable Stability of Charge Density Wave Order inLa1.875Ba0.125CuO4

Cited by 44 publications

References 65 publications

X-Rays Writing/Reading of Charge Density Waves in the CuO2 Plane of a Simple Cuprate Superconductor

X-Rays Writing/Reading of Charge Density Waves in the CuO2 Plane of a Simple Cuprate Superconductor

Charge density wave memory in a cuprate superconductor

Incommensurate Phonon Anomaly and the Nature of Charge Density Waves in Cuprates

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