Abstract
We studied the main and the satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra in optimally doped YBa2(Cu 1-xZnx)3O7-δ. The Cu nuclear spin-lattice relaxation time is found to distribute in the broadened Cu(2) NQR spectra. This is in contrast to nearly frequency independent relaxation in slightly oxygen-deficient YBa2Cu3Oy. The Cu nuclear spin-lattice relaxation time of the Zn-induced satellite signal is shorter than that of the main signal, suggesting a locally enhanced magnetic correlation by Zn. From the analysis of Zn-induced Cu NQR relaxation, the origin of pair-breaking mechanism due to Zn impurity is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 166-170 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 392-396 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 2003 Oct |
| Externally published | Yes |
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Keywords
- Nonmagnetic impurity effect
- Nuclear quadrupole resonance
- Nuclear spin-lattice relaxation
- YBa(Cu Zn) O
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ. / Itoh, Y.; Machi, T.; Kasai, C.; Adachi, S.; Koshizuka, N.; Murakami, Masato.
In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 166-170.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ
AU - Itoh, Y.
AU - Machi, T.
AU - Kasai, C.
AU - Adachi, S.
AU - Koshizuka, N.
AU - Murakami, Masato
PY - 2003/10
Y1 - 2003/10
N2 - We studied the main and the satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra in optimally doped YBa2(Cu 1-xZnx)3O7-δ. The Cu nuclear spin-lattice relaxation time is found to distribute in the broadened Cu(2) NQR spectra. This is in contrast to nearly frequency independent relaxation in slightly oxygen-deficient YBa2Cu3Oy. The Cu nuclear spin-lattice relaxation time of the Zn-induced satellite signal is shorter than that of the main signal, suggesting a locally enhanced magnetic correlation by Zn. From the analysis of Zn-induced Cu NQR relaxation, the origin of pair-breaking mechanism due to Zn impurity is discussed.
AB - We studied the main and the satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra in optimally doped YBa2(Cu 1-xZnx)3O7-δ. The Cu nuclear spin-lattice relaxation time is found to distribute in the broadened Cu(2) NQR spectra. This is in contrast to nearly frequency independent relaxation in slightly oxygen-deficient YBa2Cu3Oy. The Cu nuclear spin-lattice relaxation time of the Zn-induced satellite signal is shorter than that of the main signal, suggesting a locally enhanced magnetic correlation by Zn. From the analysis of Zn-induced Cu NQR relaxation, the origin of pair-breaking mechanism due to Zn impurity is discussed.
KW - Nonmagnetic impurity effect
KW - Nuclear quadrupole resonance
KW - Nuclear spin-lattice relaxation
KW - YBa(Cu Zn) O
UR - http://www.scopus.com/inward/record.url?scp=0041782891&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041782891&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(03)00726-3
DO - 10.1016/S0921-4534(03)00726-3
M3 - Article
VL - 392-396
SP - 166
EP - 170
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 1
ER -