Localised magnetic moments in oxygen deficient YBa2Cu3O7-δ

L. Mihaly; I. Furo; S. Pekker; P. Banki; E. Lippmaa; V. Miidel; E. Joon; I. Heinmaa

doi:10.1016/0921-4534(88)90500-X

Localised magnetic moments in oxygen deficient YBa₂Cu₃O_7-δ

L. Mihaly
, I. Furo
, S. Pekker
, P. Banki
, E. Lippmaa
, V. Miidel
, E. Joon
, I. Heinmaa

Physics and Astronomy

Stony Brook University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The assignment of copper NQR frequencies and crystallographic sites is discussed for the oxygen deficient compound YBa₂Cu₃O_7-δ. The NQR spectrum of the YBa₂Cu₃O_6.2 is contributed only by a single crystallographic copper site. The absence of the signal of the other copper site may be due to localised magnetic moments on this site. The comparision of ⁶³Cu and ⁶⁵Cu NQR spin lattice relaxation times (T₁) indicates the presence of magnetic fluctuations. The fluctuation rate is strongly temperature dependent, interpreted as an evidence for a magnetic transition.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	153-155
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(88)90500-X
State	Published - Jun 1988

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title = "Localised magnetic moments in oxygen deficient YBa2Cu3O7-δ",

abstract = "The assignment of copper NQR frequencies and crystallographic sites is discussed for the oxygen deficient compound YBa2Cu3O7-δ. The NQR spectrum of the YBa2Cu3O6.2 is contributed only by a single crystallographic copper site. The absence of the signal of the other copper site may be due to localised magnetic moments on this site. The comparision of 63Cu and 65Cu NQR spin lattice relaxation times (T1) indicates the presence of magnetic fluctuations. The fluctuation rate is strongly temperature dependent, interpreted as an evidence for a magnetic transition.",

author = "L. Mihaly and I. Furo and S. Pekker and P. Banki and E. Lippmaa and V. Miidel and E. Joon and I. Heinmaa",

year = "1988",

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doi = "10.1016/0921-4534(88)90500-X",

language = "English",

volume = "153-155",

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T1 - Localised magnetic moments in oxygen deficient YBa2Cu3O7-δ

AU - Mihaly, L.

AU - Furo, I.

AU - Pekker, S.

AU - Banki, P.

AU - Lippmaa, E.

AU - Miidel, V.

AU - Joon, E.

AU - Heinmaa, I.

PY - 1988/6

Y1 - 1988/6

N2 - The assignment of copper NQR frequencies and crystallographic sites is discussed for the oxygen deficient compound YBa2Cu3O7-δ. The NQR spectrum of the YBa2Cu3O6.2 is contributed only by a single crystallographic copper site. The absence of the signal of the other copper site may be due to localised magnetic moments on this site. The comparision of 63Cu and 65Cu NQR spin lattice relaxation times (T1) indicates the presence of magnetic fluctuations. The fluctuation rate is strongly temperature dependent, interpreted as an evidence for a magnetic transition.

AB - The assignment of copper NQR frequencies and crystallographic sites is discussed for the oxygen deficient compound YBa2Cu3O7-δ. The NQR spectrum of the YBa2Cu3O6.2 is contributed only by a single crystallographic copper site. The absence of the signal of the other copper site may be due to localised magnetic moments on this site. The comparision of 63Cu and 65Cu NQR spin lattice relaxation times (T1) indicates the presence of magnetic fluctuations. The fluctuation rate is strongly temperature dependent, interpreted as an evidence for a magnetic transition.

UR - https://www.scopus.com/pages/publications/0024020225

U2 - 10.1016/0921-4534(88)90500-X

DO - 10.1016/0921-4534(88)90500-X

M3 - Article

SN - 0921-4534

VL - 153-155

SP - 87

EP - 90

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 1

ER -

Localised magnetic moments in oxygen deficient YBa₂Cu₃O_7-δ

Abstract

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