Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl2Ba2CuO6+δ

C. C. Tam; M. Zhu; J. Ayres; K. Kummer; F. Yakhou-Harris; J. R. Cooper; A. Carrington; S. M. Hayden

doi:10.1038/s41467-022-28124-y

Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl2Ba2CuO6+δ

C. C. Tam, M. Zhu, J. Ayres, K. Kummer, F. Yakhou-Harris, J. R. Cooper, A. Carrington, S. M. Hayden

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Abstract

Hall effect and quantum oscillation measurements on high temperature cuprate superconductors show that underdoped compositions have small Fermi surface pockets whereas when heavily overdoped, a single much larger pocket is found. The origin of this change in electronic structure has been unclear, but may be related to the high temperature superconductivity. Here we show that the clean overdoped single-layer cuprate Tl2Ba2CuO6+δ (Tl2201) displays CDW order with a remarkably long correlation length ξ ≈ 200 Å which disappears above a hole doping of pCDW ≈ 0.265. We show that the evolution of the electronic properties of Tl2201 as the doping is lowered may be explained by a Fermi surface reconstruction which accompanies the emergence of the CDW below pCDW. Our results demonstrate importance of CDW correlations in understanding the electronic properties of overdoped cuprates.

Original language	English
Article number	570
Journal	Nature Communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-022-28124-y
Publication status	Published - 28 Jan 2022

Bibliographical note

Funding Information:
We acknowledge useful discussions with Nigel Hussey, Steve Kivelson and Cyril Proust. Liam Malone contributed to the sample growth. AC and SMH acknowledge funding from the UK Engineering and Physical Sciences Research Council under grant EP/ R011141/1.

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© 2022, The Author(s).

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title = "Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl2Ba2CuO6+δ",

abstract = "Hall effect and quantum oscillation measurements on high temperature cuprate superconductors show that underdoped compositions have small Fermi surface pockets whereas when heavily overdoped, a single much larger pocket is found. The origin of this change in electronic structure has been unclear, but may be related to the high temperature superconductivity. Here we show that the clean overdoped single-layer cuprate Tl2Ba2CuO6+δ (Tl2201) displays CDW order with a remarkably long correlation length ξ ≈ 200 {\AA} which disappears above a hole doping of pCDW ≈ 0.265. We show that the evolution of the electronic properties of Tl2201 as the doping is lowered may be explained by a Fermi surface reconstruction which accompanies the emergence of the CDW below pCDW. Our results demonstrate importance of CDW correlations in understanding the electronic properties of overdoped cuprates.",

author = "Tam, {C. C.} and M. Zhu and J. Ayres and K. Kummer and F. Yakhou-Harris and Cooper, {J. R.} and A. Carrington and Hayden, {S. M.}",

note = "Funding Information: We acknowledge useful discussions with Nigel Hussey, Steve Kivelson and Cyril Proust. Liam Malone contributed to the sample growth. AC and SMH acknowledge funding from the UK Engineering and Physical Sciences Research Council under grant EP/ R011141/1. Publisher Copyright: {\textcopyright} 2022, The Author(s).",

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T1 - Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl2Ba2CuO6+δ

AU - Tam, C. C.

AU - Zhu, M.

AU - Ayres, J.

AU - Kummer, K.

AU - Yakhou-Harris, F.

AU - Cooper, J. R.

AU - Carrington, A.

AU - Hayden, S. M.

N1 - Funding Information: We acknowledge useful discussions with Nigel Hussey, Steve Kivelson and Cyril Proust. Liam Malone contributed to the sample growth. AC and SMH acknowledge funding from the UK Engineering and Physical Sciences Research Council under grant EP/ R011141/1. Publisher Copyright: © 2022, The Author(s).

PY - 2022/1/28

Y1 - 2022/1/28

N2 - Hall effect and quantum oscillation measurements on high temperature cuprate superconductors show that underdoped compositions have small Fermi surface pockets whereas when heavily overdoped, a single much larger pocket is found. The origin of this change in electronic structure has been unclear, but may be related to the high temperature superconductivity. Here we show that the clean overdoped single-layer cuprate Tl2Ba2CuO6+δ (Tl2201) displays CDW order with a remarkably long correlation length ξ ≈ 200 Å which disappears above a hole doping of pCDW ≈ 0.265. We show that the evolution of the electronic properties of Tl2201 as the doping is lowered may be explained by a Fermi surface reconstruction which accompanies the emergence of the CDW below pCDW. Our results demonstrate importance of CDW correlations in understanding the electronic properties of overdoped cuprates.

AB - Hall effect and quantum oscillation measurements on high temperature cuprate superconductors show that underdoped compositions have small Fermi surface pockets whereas when heavily overdoped, a single much larger pocket is found. The origin of this change in electronic structure has been unclear, but may be related to the high temperature superconductivity. Here we show that the clean overdoped single-layer cuprate Tl2Ba2CuO6+δ (Tl2201) displays CDW order with a remarkably long correlation length ξ ≈ 200 Å which disappears above a hole doping of pCDW ≈ 0.265. We show that the evolution of the electronic properties of Tl2201 as the doping is lowered may be explained by a Fermi surface reconstruction which accompanies the emergence of the CDW below pCDW. Our results demonstrate importance of CDW correlations in understanding the electronic properties of overdoped cuprates.

U2 - 10.1038/s41467-022-28124-y

DO - 10.1038/s41467-022-28124-y

M3 - Article (Academic Journal)

C2 - 35091572

SN - 2041-1723

VL - 13

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 570

ER -

Charge density waves and Fermi surface reconstruction in the clean overdoped cuprate superconductor Tl2Ba2CuO6+δ

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