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 |
Fingerprint Dive into the research topics of 'Charge order and superconductivity in underdoped YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> under pressure'. Together they form a unique fingerprint.
Projects
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Fermi Surface Reconstruction in Cuprate High Temperature Superconductors
31/08/13 → 28/02/17
Project: Research