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Magnetic properties of the Biâ Srâ CaCuâ Oâ single crystal

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Show simple item record Abdussalam, Giamal F. en_US 2009-07-09T18:38:53Z 2009-07-09T18:38:53Z 1991-07-09T18:38:53Z
dc.description.abstract The Bi2Sr2CaCu20g single crystal with a superconducting transition temperature equal to 90 ± 2 K was prepared. The irreversibility line of the single crystal for a mgnetic field direction along the c-axis and T* in the ab-plane was determined. The reduced temperature (l - T ) is proportional to H 1.1 for fields below 004 T and proportional to HO.09 for fields above 0.4 T. The zero temperature upper critical field Hc2(0) and coherence length ~ (0) were determined from the magnetization meaurements to be H-lC2=35.9T , H//C2=31.2T, ~c(0)=35.0 A, and ~ab(0)=32.5A,and from the magnetoresistance measurements to be H-lc2 = 134.6T , H//C2=55.5T '~c(0)=38.1 A, and ~ab(0)=2404 A for both directions of the applied magnetic field. The results obtained for Hc2(0) and ~(O) are not reliable due to the rounding that the single crystal exhibits in the magnetization and magnetoresistance curves. The magnetization relaxation of the single crystal was investigated, and was found to be logarithmic in time, and the relaxation rate increases with temperature up to 50 -60 K, then decreases at higher temperatures. en_US
dc.language.iso eng en_US
dc.publisher Brock University en_US
dc.subject Crystals--Magnetic properties. en_US
dc.subject Magnetic properties. en_US
dc.subject Superconductivity. en_US
dc.subject High temperature superconductivity. en_US
dc.title Magnetic properties of the Biâ Srâ CaCuâ Oâ single crystal en_US
dc.type Electronic Thesis or Dissertation en_US M.Sc. Physics en_US Masters en_US
dc.contributor.department Department of Physics en_US Faculty of Mathematics and Science en_US

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