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Träfflista för sökning "WFRF:(Holmlund D) srt2:(2000-2004)"

Sökning: WFRF:(Holmlund D) > (2000-2004)

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1.
  • Budelmann, D., et al. (författare)
  • Antiferromagnetic and superconducting proximity effects in YBa2Cu3O7-delta/PrBa2Cu3O7-delta superlattices
  • 2003
  • Ingår i: Physical Review B Condensed Matter. - 0163-1829 .- 1095-3795. ; 67, s. 140507-
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigate the interplay between the antiferromagnetic and superconducting order parameters in YBa2Cu3O7-delta/PrBa2Cu3O7-delta superlattices by inelastic light scattering. The ratio of superconducting to antiferromagnetic order is varied through different modulations 4/6, 4/9, and 4/12 of (Y/Pr)Ba2Cu3O7-delta layers. This allows us to identify the proximity effect of the superconducting order parameter into the antiferromagnetic barrier as signified, e.g., by the sharpening of the two-magnon excitation. This proximity effect as well as gap feature and phonon anomalies reveals the delicate interplay between superconducting and antiferromagnetic order parameters.
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2.
  • Selmer, Maria, et al. (författare)
  • Preparation of a crystallizable mRNA-binding fragment of Moorella thermoacetica elongation factor SelB
  • 2002
  • Ingår i: Acta Crystallographica. Section D: Biological Crystallography. - 1399-0047. ; 58, s. 1871-1873
  • Tidskriftsartikel (refereegranskat)abstract
    • SelB is a bacterial elongation factor required for the decoding of a UGA stop codon together with a specific mRNA hairpin to selenocysteine. In attempts to crystallize Moorella thermoacetica SelB, a proteolysis process occurred and crystals of a proteolytic fragment were observed. The crystals, which appeared after a year, contained a C-terminal 30 kDa fragment containing the mRNA-binding domain. This fragment was reproduced through recloning. Crystals diffracting to 2.7 Angstrom were obtained.
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