Projects per year
Abstract
In underdoped cuprates, an incommensurate charge density wave (CDW) order is known to coexist with superconductivity. A dip in Tc at the hole doping level where the CDW is strongest (np≃0.12) suggests that CDW order may suppress superconductivity. We investigate the interplay of charge order with superconductivity in underdoped YBa2Cu3O7-δ by measuring the temperature dependence of the Hall coefficient RH(T) at high magnetic field and at high hydrostatic pressure. We find that, although pressure increases Tc by up to 10 K at 2.6 GPa, it has very little effect on RH(T). This suggests that pressure, at these levels, only weakly affects the CDW and that the increase in Tc with pressure cannot be attributed to a suppression of the CDW. We argue, therefore, that the dip in Tc at np≃0.12 at ambient pressure is probably not caused by the CDW formation.
Original language | English |
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Article number | 117002 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 120 |
Issue number | 11 |
DOIs | |
Publication status | Published - 16 Mar 2018 |
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Dive into the research topics of 'Charge order and superconductivity in underdoped YBa2Cu3O7-δ under pressure'. Together they form a unique fingerprint.Projects
- 3 Finished
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Superconductivity and Competing Orders in High Tc Cuprates
Carrington, A. (Principal Investigator)
1/12/17 → 7/01/22
Project: Research
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High-pressure studies of Charge-Density-Wave Superconductors
Friedemann, S. (Principal Investigator)
1/07/16 → 30/06/18
Project: Research
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Fermi Surface Reconstruction in Cuprate High Temperature Superconductors
Carrington, A. (Principal Investigator)
31/08/13 → 28/02/17
Project: Research