Naslov
Strong Cu-O hybridization in cuprate superconductors evidenced by NMR/NQR

Autori
Kupčić, Ivan ; Barišić, Slaven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Recent advances in broad-band solid-state NMR of correlated electronic systems - Abstract Book / Sunko, D.K. ; Bilušić A. ; Paar, D. - Zagreb, 2010, 22-22

Skup
Recent advances in broad-band solid-state NMR of correlated electronic systems

Mjesto i datum
Trogir, Hrvatska, 05.09.2010. - 10.09.2010

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
nuclear magnetic resonance

Sažetak
The intracell charge distribution in La$_{; ; ; 2-x}; ; ; $Sr$_x$CuO$_4$, described in terms of the average hole number on copper sites $n_d$, is estimated from the measured $^{; ; ; 63}; ; ; \nu_Q$ frequencies. n_d$ and the slope $\partial n_d/\partial \delta$ are also calculated using the Emery three-band model for both $U_d \rightarrow \infty$ and $U_d = 0$ and for the single-particle parameters extracted from ARPES experiments. The large difference between two sets of estimated values for $n_d$ and $\partial n_d/\partial \delta$ is discussed in terms of the large $U_d$ limit of the three-band model. It appears that, through the coupling with CDW and charge transfer fluctuations, the spin density fluctuations strongly affect those and other properties of cuprates.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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