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Pregled bibliografske jedinice broj: 628307

Hole Depletion of Ladders in Sr14Cu24O41 induced by Correlation Effects


Ilakovac, Vita; Gougoussis, C.; Calandra, M.; Brookes, N.B.; Bisogni, V.; Chiuzbaian, S.G.; Akimitsu, J.; Milat, Ognjen; Tomic, Silvia; Hague C.F.
Hole Depletion of Ladders in Sr14Cu24O41 induced by Correlation Effects // Physical Review B - Condensed Matter and Materials Physics, 85 (2012), 075108-1 doi:10.1103/PhysRevB.85.075108 (međunarodna recenzija, članak, znanstveni)


Naslov
Hole Depletion of Ladders in Sr14Cu24O41 induced by Correlation Effects

Autori
Ilakovac, Vita ; Gougoussis, C. ; Calandra, M. ; Brookes, N.B. ; Bisogni, V. ; Chiuzbaian, S.G. ; Akimitsu, J. ; Milat, Ognjen ; Tomic, Silvia ; Hague C.F.

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 85 (2012); 075108-1

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

Ključne riječi
Spin ladders; correlation effects; NEXAFS; hole distribution

Sažetak
The hole distribution in Sr14Cu24 is studied by low-temperature polarization-dependent O K near-edge x-ray absorption fine-structure measurements and state-of-the-art electronic structure calculations that include core-hole and correlation effects in a mean-field approach. Contrary to all previous analysis, based on semiempirical models, we show that correlations and antiferromagnetic ordering favor the chain-hole attraction. For the remaining small number of holes accomodated on ladders, leg sites are preferred to rung sites. The small hole affinity of rung sites explains naturally the one-dimensional to two-dimensional crossover in the phase diagram of (la, Y, Sr, Ca)14Cu24O41.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0000000-2836 - Jako korelirani anorganski, organski i biomaterijali (Silvia Tomić, )
035-0352843-2844 - Veza strukturnih i fizikalnih svojstava materijala kontrolirane dimenzionalnosti (Ognjen Milat, )

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Ognjen Milat, (77950)
Silvia Tomić, (65594)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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