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Is Nematicity in Cuprates Real?

Journal Article · · Condensed Matter
In La2-xSrxCuO4 (LSCO), a prototype high-temperature superconductor (HTS) cuprate, a nonzero transverse voltage is observed in zero magnetic fields. This is important since it points to the breaking of the rotational symmetry in the electron fluid, the so-called electronic nematicity, presumably intrinsic to LSCO (and other cuprates). An alternative explanation is that it arises from extrinsic factors such as the film’s inhomogeneity or some experimental artifacts. We confront this hypothesis with published and new experimental data, focusing on the most direct and sensitive probe—the angle-resolved measurements of transverse resistivity (ARTR). The aggregate experimental evidence overwhelmingly refutes the extrinsic scenarios and points to an exciting new effect—intrinsic electronic nematicity.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
Gordon and Betty Moore Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
SC0012704
OSTI ID:
1960164
Report Number(s):
BNL--223901-2023-JAAM
Journal Information:
Condensed Matter, Journal Name: Condensed Matter Journal Issue: 1 Vol. 8; ISSN 2410-3896
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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