Physics – Condensed Matter – Superconductivity
Scientific paper
2001-03-26
Physics
Condensed Matter
Superconductivity
3 pages, PDF
Scientific paper
10.1063/1.1385186
Growth of MgB2 thin films by pulsed laser deposition is examined under ex situ and in situ processing conditions. For the ex situ process, Boron films grown by PLD were annealed at 900 C with excess Mg. For the in situ process, different approaches involving ablation from a stoichiometric target under different growth conditions, as well as multilayer deposition involving interposed Mg layers were examined and analyzed. Magnetic measurements on ex situ processed films show TC of ~39 K, while the current best in situ films show a susceptibility transition at ~ 22 K.
Bud`ko S. L.
Canfield Paul. C.
Greene Richard L.
Lapertot Gerard
Ogale S. B.
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