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  Hall effect and resistivity of oxygen-deficient YBa2Cu3O7-δ thin films

Carrington, A., Walker, D., Mackenzie, A. P., & Cooper, J. (1993). Hall effect and resistivity of oxygen-deficient YBa2Cu3O7-δ thin films. Physical Review B, 48(17), 13051-13059. doi:10.1103/PhysRevB.48.13051.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EC95-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EC9A-E
Genre: Journal Article

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Carrington, A.1, Author
Walker, D.J.C.1, Author
Mackenzie, A. P.2, Author              
Cooper, J.R.1, Author
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: We report measurements of the ab-plane resistivity (rho) and Hall coefficient (R(H)) of crystalline thin films of YBa2Cu3O7-delta (0.05 less-than-or-equal-to delta less-than-or-equal-to 0.53) from below T(c) up to 400 K. In contrast to measurements on sintered samples, and some other recent work on thin films, the residual resistivity of these films (as extra-polated from high temperature) remains low for all delta. As oxygen is removed from the films, rho increases and rho(T) develops downward curvature below 300 K. The Hall angle (THETA(H)) however, continues to obey the relation, cotTHETA(H) = AT2+B. As delta increases, the coefficient A decreases while B remains constant. Data for an oxygen-deficient single crystal of YBa2Cu3O7-delta agree well with our film data. Measurements of rho in the region of the superconducting transition in fields of up to 7 T, applied parallel to the crystallographic a, b, or c axes, are also reported. The well-known ''field-induced broadening'' of the rho(T) curves becomes larger as delta is increased. There is evidence for a transition line in the field-temperature plane that has the 4/3-power-law behavior associated with critical fluctuations in the three-dimensional XY model.

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 Dates: 1993-11-01
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: ISI: A1993MF90100079
DOI: 10.1103/PhysRevB.48.13051
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 48 (17) Sequence Number: - Start / End Page: 13051 - 13059 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008