Measurement of penetration depth {lambda}(T) in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} thin film

Conference · Tue Jun 01 00:00:00 EDT 1993

OSTI ID:10161490

Lee, J Y; Lemberger, T R ^[1]; Foltyn, S; Wu, X D ^[2]

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1. Ohio State Univ., Columbus, OH (United States). Dept. of Physics
2. Los Alamos National Lab., NM (United States)

We present the magnetic penetration depth {lambda}(T) in two laser ablated YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thin films, determined by the two-coil method. The slope of 1/{lambda}{sup 2}(T) near T{sub c}, the only exactly measurable quantity, extrapolates to 930{Angstrom} at T=0, which compares well with 830{Angstrom} in the high quality single crystal recently reported by Hardy et al., and which exhibited a linear T dependence at low T. For T {lt} 30K, we find {lambda}(T)/{lambda}(0){minus}1 = a(T/T{sub c}){sup 2} where a=0.5.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10161490
• Report Number(s): LA-UR-93-1705; CONF-930801-2; ON: DE93014587
• Resource Relation: Conference: Conference of the International Union of Pure and Applied Physics on low temperature physics (LT 20),Eugene, OR (United States),1-11 Aug 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
PENETRATION DEPTH
SUPERCONDUCTING FILMS
THIN FILMS
LASER-RADIATION HEATING
ABLATION
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
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