Fluctuation effects in magnetic penetration depth of high-{Tc} films

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:548467

Lemberger, T R; Ulm, E R; Paget, K M ^[1]; Matijasevic, V C ^[2]

---

1. Ohio State Univ., Columbus, OH (United States). Dept. of Physics
2. Delft Inst. of Tech. (Netherlands)

The authors do not find evidence for strong fluctuation effects in the magnetic penetration depth of films of YBCO. While in YBCO crystals it has been found that {lambda}{sup {minus}3}(T) is linear in T below {Tc} over a range of temperatures from 5K to 15K, {lambda}{sup {minus}2}(T) is linear over a range of several degrees K just below {Tc} in YBCO and SmBCO films with very sharp transitions. At low temperatures, they find a T-linear behavior in {lambda}(T) in pure YBCO and SmBCO films. However, they do not find evidence that the T-linear behavior is due to thermal phase fluctuations which should increase in strength as {lambda}(0) increases.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-90ER45427
• OSTI ID: 548467
• Report Number(s): CONF-960163-; ISBN 0-8194-2071-9; TRN: 98:000282
• Resource Relation: Conference: Photonics West `96: conference on quantum well and superlattice physics VI, San Jose, CA (United States), 27 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Oxide superconductor physics and nano-engineering II; Bozovic, I. [ed.] [Varian Research Center, Palo Alto, CA (United States)]; Pavuna, D. [ed.] [Swiss Federal Inst. of Tech., Lausanne (Switzerland)]; PB: 578 p.; Proceedings/SPIE, Volume 2697
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
PENETRATION DEPTH
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TRANSITION TEMPERATURE