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Title: Is there a path from cuprates towards room-temperature superconductivity?

A brief account is presented of an extensive experiment performed at Brookhaven National Laboratory, aimed at understanding the nature of high-temperature superconductivity in cuprates. Over the course of the last 12 years, over 2000 films of the prototypical high- T c superconductor, La 2-xSr xCuO 4, have been synthesized using atomic-layer-by-layer molecular beam epitaxy (ALL-MBE), characterized by a range of techniques, and patterned into devices. These were then used to measure accurately the key physical parameters in both the superconducting and the normal states, and establish their precise dependence on doping, temperature, and external fields. Our results bring in some great surprises, challenge the commonly held beliefs, rule out many theoretical models, and point to a new path for raising T c even further.
Authors:
 [1] ;  [2] ;  [1] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Yale Univ., New Haven, CT (United States). Applied Physics Dept.
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-114292-2017-JA
Journal ID: ISSN 2196-5609; R&D Project: MA509MACA; KC0203020; TRN: US1800308
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Quantum Studies: Mathematics and Foundations
Additional Journal Information:
Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2196-5609
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; high-temperature superconductivity; cuprates; molecular beam epitaxy; superfluid density; electronic nematicity
OSTI Identifier:
1412637