English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Photoemission spectra of underdoped and lightly-dopedBi$_{2-z}$Pb$_z$Sr$_2$Ca$_{1-x}${\it R}$_{x}$Cu$_2$O$_{8+y}$ ($R=$ Pr, Er)(BSCCO) have been measured and compared with those of La$_{2-x}$Sr$_x$CuO$_4$(LSCO). The lower-Hubbard band of the insulating BSCCO, likeCa$_2$CuO$_2$Cl$_2$, shows a stronger dispersion than La$_2$CuO$_4$ from ${\bfk}\sim$($\pi/2,\pi/2$) to $\sim$($\pi,0$). The flat band at ${\bfk}\sim$($\pi,0$) is found generally deeper in BSCCO. These observationstogether with the Fermi-surface shapes and the chemical potential shiftsindicate that the next-nearest-neighbor hopping $|t^{\prime}|$ of thesingle-band model is larger in BSCCO than in LSCO and that $|t^{\prime}|$rather than the super-exchange $J$ influences the pseudogap energy scale.Comment: 5 pages,4 figures, 1 tabl

physical review. b, condensed matter and materials physics

Effects of next-nearest-neighbor hopping<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math>on the electronic structure of cuprate superconductors

Effects of next-nearest-neighbor hoppingt′on the electronic structure of cuprate superconductors