Article Metrics


Online attention

Superconducting dome and pseudogap endpoint in Bi2201

DOI: 10.1103/PhysRevMaterials.6.044804 DOI Help

Authors: M. Berben (Radboud University) , S. Smit (University of Amsterdam) , C. Duffy (Radboud University) , Y.-T. Hsu (Radboud University) , L. Bawden (University of Amsterdam) , F. Heringa (University of Amsterdam) , F. Gerritsen (University of Amsterdam) , S. Cassanelli (University of Amsterdam) , X. Feng (University of Amsterdam) , S. Bron (University of Amsterdam) , E. Van Heumen (University of Amsterdam) , Y. Huang (University of Amsterdam) , F. Bertran (Synchrotron-SOLEIL) , T. K. Kim (Diamond Light Source) , C. Cacho (Diamond Light Source) , A. Carrington (University of Bristol) , M. S. Golden (University of Amsterdam) , N. E. Hussey (Radboud University; University of Bristol)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review Materials , VOL 6

State: Published (Approved)
Published: April 2022

Abstract: Once doped away from their parent Mott insulating state, the hole-doped cuprates enter into many varied and exotic phases. The onset temperature of each phase is then plotted versus p —the number of doped holes per copper atom—to form a representative phase diagram. Apart from differences in the absolute temperature scales among the various families, the resultant phase diagrams are strikingly similar. In particular, the p values corresponding to optimal doping ( p opt ∼ 0.16 ) and to the end of the pseudogap phase ( p ∗ ∼ 0.19 – 0.20 ) are essentially the same for all cuprate families bar one: the single-layer Bi-based cuprate Bi 2 + z − y Pb y Sr 2 − x − z La x CuO 6 + δ (Bi2201). This anomaly arises partly due to the complex stoichiometry of this material and also to the different p values inferred from disparate (e.g., bulk or surface) measurements performed on samples with comparable superconducting transition temperatures T c . Here, by combining measurements of the in-plane resistivity in zero and high magnetic fields with angle-resolved photoemission spectroscopy studies in the superconducting and normal state, we argue that the phase diagram of Bi2201 may in fact be similar to that realized in other families. This study therefore brings Bi2201 into the fold and supports the notion of universality of p opt and p ∗ in all hole-doped cuprates.

Journal Keywords: Electrical conductivity; Fermi surface

Subject Areas: Materials, Medicine

Instruments: I05-ARPES

Other Facilities: CASSIOPÉE at Soleil

Added On: 21/04/2022 10:21

Discipline Tags:

Superconductors Quantum Materials Physics Materials Science

Technical Tags:

Spectroscopy Angle Resolved Photoemission Spectroscopy (ARPES)