Temperature dependence of the positron annihilation lifetime in single-crystal YBa2Cu3O7

D. R. Harshman; L. F. Schneemeyer; J. V. Waszczak; Y. C. Jean; M. J. Fluss; R. H. Howell; A. L. Wachs

doi:10.1103/PhysRevB.38.848

Temperature dependence of the positron annihilation lifetime in single-crystal YBa2Cu3O7

D. R. Harshman, L. F. Schneemeyer, J. V. Waszczak, Y. C. Jean, M. J. Fluss, R. H. Howell, A. L. Wachs

Chemistry and Biochemistry

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

52 Scopus citations

Abstract

We report our measurements of the temperature dependence of the positron lifetime spectrum in single-crystal YBa2Cu3O7. Contrary to earlier measurements in sintered powders, we observe only a single lifetime component for temperatures in the range 5<T<297 K, exhibiting a constant value (176 ps) above Tc and increasing monotonically below Tc to 187 ps at 5 K. Possible correlations with the superconducting gap, relaxation of the oxygen atoms, or a redistribution of the electrons are discussed.

Original language	English
Pages (from-to)	848-851
Number of pages	4
Journal	Physical Review B
Volume	38
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.38.848
State	Published - 1988

Access to Document

10.1103/PhysRevB.38.848

Cite this

@article{e75aab7f79cb4c6ebf0229df96a98235,

title = "Temperature dependence of the positron annihilation lifetime in single-crystal YBa2Cu3O7",

abstract = "We report our measurements of the temperature dependence of the positron lifetime spectrum in single-crystal YBa2Cu3O7. Contrary to earlier measurements in sintered powders, we observe only a single lifetime component for temperatures in the range 5",

author = "Harshman, {D. R.} and Schneemeyer, {L. F.} and Waszczak, {J. V.} and Jean, {Y. C.} and Fluss, {M. J.} and Howell, {R. H.} and Wachs, {A. L.}",

year = "1988",

doi = "10.1103/PhysRevB.38.848",

language = "English",

volume = "38",

pages = "848--851",

journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Temperature dependence of the positron annihilation lifetime in single-crystal YBa2Cu3O7

AU - Harshman, D. R.

AU - Schneemeyer, L. F.

AU - Waszczak, J. V.

AU - Jean, Y. C.

AU - Fluss, M. J.

AU - Howell, R. H.

AU - Wachs, A. L.

PY - 1988

Y1 - 1988

N2 - We report our measurements of the temperature dependence of the positron lifetime spectrum in single-crystal YBa2Cu3O7. Contrary to earlier measurements in sintered powders, we observe only a single lifetime component for temperatures in the range 5

AB - We report our measurements of the temperature dependence of the positron lifetime spectrum in single-crystal YBa2Cu3O7. Contrary to earlier measurements in sintered powders, we observe only a single lifetime component for temperatures in the range 5

UR - http://www.scopus.com/inward/record.url?scp=0010216006&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.38.848

DO - 10.1103/PhysRevB.38.848

M3 - Article

AN - SCOPUS:0010216006

SN - 0163-1829

VL - 38

SP - 848

EP - 851

JO - Physical Review B

JF - Physical Review B

IS - 1

ER -

Temperature dependence of the positron annihilation lifetime in single-crystal YBa2Cu3O7

Abstract

Access to Document

Other files and links

Fingerprint

Cite this