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  Field dependence of the resistive transition in Tl2Ba2CuO6+δ

Carrington, A., Mackenzie, A. P., Sinclair, D., & Cooper, J. (1994). Field dependence of the resistive transition in Tl2Ba2CuO6+δ. Physical Review B, 49(18), 13243-13246. doi:10.1103/PhysRevB.49.13243.

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

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 Abstract: We report measurements of the magnetic-field dependence of the resistive transition in Tl2Ba2CuO6+delta for several crystals with transition temperatures in the range 15 K less-than-or-equal-to T(c) less-than-or-equal-to 62 K. The transition of the most overdoped sample (with the lowest transition temperature) shifts monotonically to lower temperature with increasing field with no appreciable change in shape. As reported previously [A. P. Mackenzie et al., Phys. Rev. Lett. 71, 1238 (1993)], the behavior of the upper critcal field (H(c2)) inferred from these measurements does not, however, have the classical BCS form. The samples with higher transition temperatures show a gradual and systematic crossover to field-broadened transitions, with a kneelike structure developing in sufficiently high fields. Some possible interpretations of these observations are discussed.

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 Dates: 1994-05-01
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: ISI: A1994NM43300108
DOI: 10.1103/PhysRevB.49.13243
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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: 49 (18) Sequence Number: - Start / End Page: 13243 - 13246 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008