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In-plane oxygens in high-temperature superconducting cuprates

Nikšić, Goran; Kupčić, Ivan; Sunko, Denis K.; Barišić, Slaven
In-plane oxygens in high-temperature superconducting cuprates // Journal of superconductivity and novel magnetism, 26 (2013), 8; 2669-2673 doi:10.1007/s10948-013-2157-9 (međunarodna recenzija, članak, znanstveni)

In-plane oxygens in high-temperature superconducting cuprates

Nikšić, Goran ; Kupčić, Ivan ; Sunko, Denis K. ; Barišić, Slaven

Journal of superconductivity and novel magnetism (1557-1939) 26 (2013), 8; 2669-2673

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Emery model; magnetic fluctuations; high-temperature superconductors

The role of the oxygen degree of freedom in the cuprates' superconducting planes is analyzed in detail. Structural and photoemission results are reviewed to show that the most sparse description of the in-plane electronic states requires explicit control of the oxygens. For metallic states, the relative contributions of oxygen and copper vary along the Fermi surface (FS), with the arc metallicity dominantly oxygen-derived. For the magnetic responses, we find that the observed incommensurability arises naturally if one keeps separate the roles of the two sites. For the charge order in LBCO, we propose a scenario, based on magnetic interactions in the plane. We stress the need for further experimental investigations of the evolution of the intracell charge distribution with doping, and for a better theoretical understanding of the large particle-hole-symmetry breaking required for successful phenomenologies, but difficult to reconcile with ab initio calculations.

Izvorni jezik

Znanstvena područja

Pozvano predavanje na skupu International Conference on Phase Separation and Superstripes in high temperature superconductors and related materials, održanom od 11-17.07.2012.g., Erice, Italija.


Projekt / tema
119-1191458-0512 - Niskodimenzionalni jako korelirani vodljivi sustavi (Slaven Barišić, )

Prirodoslovno-matematički fakultet, Zagreb

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