Restored strange metal phase through suppression of charge density waves in underdoped YBa2Cu3O7–δ
Journal article, 2021

The normal state of optimally doped cuprates is dominated by the “strange metal” phase that shows a linear temperature (T) dependence of the resistivity persisting down to the lowest T. For underdoped cuprates, this behavior is lost below the pseudogap temperature T*, where charge density waves (CDWs), together with other intertwined local orders, characterize the ground state. We found that the T-linear resistivity of highly strained, ultrathin, underdoped YBa2Cu3O7–δ films is restored when the CDW amplitude, detected by resonant inelastic x-ray scattering, is suppressed. This observation suggests an intimate connection between the onset of CDWs and the departure from T-linear resistivity in underdoped cuprates. Our results illustrate the potential of using strain control to manipulate the ground state of quantum materials.

Author

Eric Wahlberg

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Riccardo Arpaia

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Polytechnic University of Milan

Götz Seibold

Brandenburg University of Technology

Matteo Rossi

Polytechnic University of Milan

Stanford University

Roberto Fumagalli

Polytechnic University of Milan

Edoardo Trabaldo

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Nicholas B. Brookes

European Synchrotron Radiation Facility (ESRF)

Lucio Braicovich

European Synchrotron Radiation Facility (ESRF)

Polytechnic University of Milan

Sergio Caprara

Sapienza University of Rome

Istituto Dei Sistemi Complessi, Rome

Ulf Gran

Chalmers, Physics, Subatomic, High Energy and Plasma Physics

Giacomo Ghiringhelli

Polytechnic University of Milan

Thilo Bauch

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Science

0036-8075 (ISSN) 1095-9203 (eISSN)

Vol. 373 6562 1506-1510

Roots

Basic sciences

Infrastructure

Nanofabrication Laboratory

Subject Categories

Condensed Matter Physics

DOI

10.1126/science.abc8372

Related datasets

Restoring the strange metal phase via suppression of charge density waves in an underdoped cuprate superconductor [dataset]

DOI: 10.5281/zenodo.4724108

More information

Latest update

9/25/2023