Sealing behaviour and hall conductivity of mixed-state hall effect in heavy-ion irradiated YBa{sub 2}Cu{sub 3}O{sub 7} crystals

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The Hall effect ({rho}{sub xy}) and longitudinal resistivity ({rho}{sub xx}) measured in YBa{sub 2}Cu{sub 3}O{sub 7} crystals before and after the irradiation of Sn and Xe ions. We found a clear evidence that the strong pinning induced by the columnar defects not only modifies the scaling behavior between the Hall resistivity {rho}{sub xy} and longitudinal resistivity {rho}{sub xx} but also affects the temperature dependence of the Hall conductivity. For the irradiated crystals with columnar defects, the scaling exponent {beta} of {rho}{sub xy} = A{rho}{sub xx}{sup {beta}} was found to be {beta} = 1.55 {+-} 0.1, whereas {beta} of the unirradiated ... continued below

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Kim, D.H.; Shim, S.Y. & Kang, W.N. December 31, 1995.

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  • Kim, D.H.
  • Shim, S.Y. Korea Institute of Science and Technology, Seoul (Korea, Democratic People`s Republic of)
  • Kang, W.N. Korea Institute of Science and Technology, Seoul (Korea, Democratic People`s Republic of)

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Description

The Hall effect ({rho}{sub xy}) and longitudinal resistivity ({rho}{sub xx}) measured in YBa{sub 2}Cu{sub 3}O{sub 7} crystals before and after the irradiation of Sn and Xe ions. We found a clear evidence that the strong pinning induced by the columnar defects not only modifies the scaling behavior between the Hall resistivity {rho}{sub xy} and longitudinal resistivity {rho}{sub xx} but also affects the temperature dependence of the Hall conductivity. For the irradiated crystals with columnar defects, the scaling exponent {beta} of {rho}{sub xy} = A{rho}{sub xx}{sup {beta}} was found to be {beta} = 1.55 {+-} 0.1, whereas {beta} of the unirradiated one was larger than 1.8. In case of the Hall conductivity, the pinning strength dependence was also observed. The Hall conductivity after irradiation exhibited a clear deviation from that of the unirradiated crystal at low temperatures. These results are in a good agreement with the work by Wang et al. in which pinning plays an important role.

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10 p.

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INIS; OSTI as DE96004816

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  • High T{sub c} superconductivity conference, Youngpyung (Korea, Republic of), 15-17 Aug 1995

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  • Other: DE96004816
  • Report No.: ANL/MSD/CP--87634
  • Report No.: CONF-9508207--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 192429
  • Archival Resource Key: ark:/67531/metadc666091

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • June 24, 2016, 8:28 p.m.

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Kim, D.H.; Shim, S.Y. & Kang, W.N. Sealing behaviour and hall conductivity of mixed-state hall effect in heavy-ion irradiated YBa{sub 2}Cu{sub 3}O{sub 7} crystals, article, December 31, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc666091/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.