1995
DOI: 10.1103/physrevb.52.r15734
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Interplane coupling in the superconductorY2Ba4

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Cited by 21 publications
(31 citation statements)
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“…Unfortunately, theoretical models of interplane coupling between CuO planes have not been established so far. Stern et al reported detailed nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) investigations of Y247 compounds with ¹ of 95 K (11)(12)(13). In their report (13), they clearly indicated the evidence for the interlayer coupling between CuO double layers using NQR spin-echo double resonance (SEDOR).…”
mentioning
confidence: 92%
See 1 more Smart Citation
“…Unfortunately, theoretical models of interplane coupling between CuO planes have not been established so far. Stern et al reported detailed nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) investigations of Y247 compounds with ¹ of 95 K (11)(12)(13). In their report (13), they clearly indicated the evidence for the interlayer coupling between CuO double layers using NQR spin-echo double resonance (SEDOR).…”
mentioning
confidence: 92%
“…Stern et al reported detailed nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) investigations of Y247 compounds with ¹ of 95 K (11)(12)(13). In their report (13), they clearly indicated the evidence for the interlayer coupling between CuO double layers using NQR spin-echo double resonance (SEDOR). NQR measurement is useful in observing the microscopic environment around nuclei from the viewpoint of resonance frequency ( / ), which can be estimated from the atomic coordination.…”
mentioning
confidence: 92%
“…Simultaneous decreases of T 1 T ÿ1 and T ÿ2 2G are observed in a single layer system [10]. One proposed mechanism for multilayer systems is spin correlations between adjacent layers [11][12][13], which had been observed in spin echo double resonance (SEDOR) experiments [14,15]. In bilayer systems, the two CuO 2 layers in a unit cell are equivalent, so that the Cu nuclei on one of the layers behave as like-spins to the others in the echo decay process and contribute to T ÿ2 2G through the interlayer spin correlations.…”
mentioning
confidence: 99%
“…14. The latter quantity has been measured using NQR-SEDOR experiments 4 , as suggested by Monien and Rice 5 . The apparent feature in these experiments is that the inter-plane relaxation rate increases faster for decreasing temperature than the in-plane one, as seen from the temperature dependence of the ratio R SEDOR (T ) = T 22 2G /T 12 2G .…”
Section: Relation To Experimentsmentioning
confidence: 99%
“…However, in particular the observation that the highest superconducting transition temperatures belong to compounds with more than one layer per unit cell initiated various investigations of out-of-plane properties. The observation of a rather strong coupling between adjacent layers has been made by inelastic neutron scattering 1 (INS), nuclear magnetic resonance [2][3][4][5] (NMR) and indirectly also in Raman scattering experiments 6 . Furthermore, the observation of a qualitatively different behavior of the odd and even channel in INS including a sharp resonance feature, found solely for odd excitations 7 and of a bilayer splitting of the Fermi surface found in angular resolved photoemission experiments (ARPES) 8,9 demonstrate that low energy excitations of cuprates are affected by the presence of more than one layer per unit cell.…”
Section: Introductionmentioning
confidence: 99%