Abstract
17O and 63Cu NMR measurements have been made in La18.5Sr0.15CuO4 with Tc =38 K. Both 17O Knight shift and quadrupole tensor were determined from the analyses of the 17O spectrum of oriented powder. The quadrupole frequencies of the planar oxygen and Cu nuclei are consistently interpreted by the analyses of Hanzawa et al. made in YBa2Cu3,O 7 with the electric field gradients due to the on-site holes at Cu and 0 sites. Then the weight factor of the Cu-3d(x2-y2) and 2p wave functions are deduced, the latter having the larger weight. From the Knight shifts vs the bulk susceptibility plots, the hyperfine coupling constants for 170 and 63Cu were almost the same as those in YBa 2Cu3,O7. Both shifts decrease significantly below J having residual parts of 63Kab=0.38% and 17Kc =0.02% at 4.2 K, which were larger than those in YBa2Cu3,O7.
| Original language | English |
|---|---|
| Pages (from-to) | 3516-3524 |
| Number of pages | 9 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 60 |
| Issue number | 10 |
| Publication status | Published - Oct 1991 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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17O and 63Cu NMR investigations of high-Tc superconductor La18.5Sr0.15CuO4 with T c =38 K. / Ishida, Kenji; Kitaoka, Yoshio; Zheng, Guo-Qing; Asayama, Kunisuke.
In: Journal of the Physical Society of Japan, Vol. 60, No. 10, 10.1991, p. 3516-3524.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - 17O and 63Cu NMR investigations of high-Tc superconductor La18.5Sr0.15CuO4 with T c =38 K
AU - Ishida, Kenji
AU - Kitaoka, Yoshio
AU - Zheng, Guo-Qing
AU - Asayama, Kunisuke
PY - 1991/10
Y1 - 1991/10
N2 - 17O and 63Cu NMR measurements have been made in La18.5Sr0.15CuO4 with Tc =38 K. Both 17O Knight shift and quadrupole tensor were determined from the analyses of the 17O spectrum of oriented powder. The quadrupole frequencies of the planar oxygen and Cu nuclei are consistently interpreted by the analyses of Hanzawa et al. made in YBa2Cu3,O 7 with the electric field gradients due to the on-site holes at Cu and 0 sites. Then the weight factor of the Cu-3d(x2-y2) and 2p wave functions are deduced, the latter having the larger weight. From the Knight shifts vs the bulk susceptibility plots, the hyperfine coupling constants for 170 and 63Cu were almost the same as those in YBa 2Cu3,O7. Both shifts decrease significantly below J having residual parts of 63Kab=0.38% and 17Kc =0.02% at 4.2 K, which were larger than those in YBa2Cu3,O7.
AB - 17O and 63Cu NMR measurements have been made in La18.5Sr0.15CuO4 with Tc =38 K. Both 17O Knight shift and quadrupole tensor were determined from the analyses of the 17O spectrum of oriented powder. The quadrupole frequencies of the planar oxygen and Cu nuclei are consistently interpreted by the analyses of Hanzawa et al. made in YBa2Cu3,O 7 with the electric field gradients due to the on-site holes at Cu and 0 sites. Then the weight factor of the Cu-3d(x2-y2) and 2p wave functions are deduced, the latter having the larger weight. From the Knight shifts vs the bulk susceptibility plots, the hyperfine coupling constants for 170 and 63Cu were almost the same as those in YBa 2Cu3,O7. Both shifts decrease significantly below J having residual parts of 63Kab=0.38% and 17Kc =0.02% at 4.2 K, which were larger than those in YBa2Cu3,O7.
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UR - http://www.scopus.com/inward/citedby.url?scp=0004431871&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0004431871
VL - 60
SP - 3516
EP - 3524
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 10
ER -