Remarkable Stability of Charge Density Wave Order in La sub(1.875) Ba sub(0.125) CuO sub(4)

The occurrence of charge-density-wave (CDW) order in underdoped cuprates is now well established, although the precise nature of the CDW and its relationship with superconductivity is not. Theoretical proposals include contrasting ideas such as that pairing may be driven by CDW fluctuations or that...

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Published in:Physical review letters 2016-10, Vol.117 (16)
Main Authors: Chen, X M, Thampy, V, Mazzoli, C, Barbour, A M, Miao, H, Gu, G D, Cao, Y, Tranquada, J M, Dean, M P M, Wilkins, S B
Format: Article
Language:English
Subjects:
Charge density waves
Dynamics
Fluctuation
Proposals
Stability
Superconductivity
Wave functions
X-rays
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container_title Physical review letters
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creator Chen, X M
Thampy, V
Mazzoli, C
Barbour, A M
Miao, H
Gu, G D
Cao, Y
Tranquada, J M
Dean, M P M
Wilkins, S B
description The occurrence of charge-density-wave (CDW) order in underdoped cuprates is now well established, although the precise nature of the CDW and its relationship with superconductivity is not. Theoretical proposals include contrasting ideas such as that pairing may be driven by CDW fluctuations or that static CDWs may intertwine with a spatially modulated superconducting wave function. We test the dynamics of CDW order in La sub(1.825) Ba sub(0.125) CuO sub(4) by using x-ray photon correlation spectroscopy at the CDW wave vector, detected resonantly at the Cu L sub(3) edge. We find that the CDW domains are strikingly static, with no evidence of significant fluctuations up to 2-h. We discuss the implications of these results for some of the competing theories.
doi_str_mv 10.1103/PhysRevLett.117.167001
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects Charge density waves
Dynamics
Fluctuation
Proposals
Stability
Superconductivity
Wave functions
X-rays
title Remarkable Stability of Charge Density Wave Order in La sub(1.875) Ba sub(0.125) CuO sub(4)
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