Microscopically smooth surface of pulse laser deposited yba2cu3o7 film shown by grazing incidence x-ray reflectivity

Harumi Asami, Yukio Watanabe

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Surface and film/substrate interface roughness of YBa2Cu3O7 films deposited on MgO(100) and SrTiO3(100) by rapid sequential pulse laser deposition has been determined from X-ray reflectivity data. The film on MgO had the average roughness of 26.2 Å at the film/substrate interface and roughness of one unit cell order at the surface. On the other hand, the film on SrTiO3 had approximately the average roughness of 40 Å at both the surface and film/substrate interface. Obviously, the surface of the film on MgO is smoother than that on STO. The rough surface of the film on SrTiO3 is considered to be partly due to the growth of the film along the steps of the substrate, while the film on MgO grows without the influence of the steps on the substrate.

Original languageEnglish
Pages (from-to)L1073-L1076
JournalJapanese Journal of Applied Physics
Volume33
Issue number8
DOIs
Publication statusPublished - Aug 1994
Externally publishedYes

Fingerprint

grazing incidence
Laser pulses
reflectance
X rays
pulses
lasers
x rays
roughness
Surface roughness
Substrates
laser deposition
cells

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Microscopically smooth surface of pulse laser deposited yba2cu3o7 film shown by grazing incidence x-ray reflectivity. / Asami, Harumi; Watanabe, Yukio.

In: Japanese Journal of Applied Physics, Vol. 33, No. 8, 08.1994, p. L1073-L1076.

Research output: Contribution to journalArticle

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abstract = "Surface and film/substrate interface roughness of YBa2Cu3O7 films deposited on MgO(100) and SrTiO3(100) by rapid sequential pulse laser deposition has been determined from X-ray reflectivity data. The film on MgO had the average roughness of 26.2 {\AA} at the film/substrate interface and roughness of one unit cell order at the surface. On the other hand, the film on SrTiO3 had approximately the average roughness of 40 {\AA} at both the surface and film/substrate interface. Obviously, the surface of the film on MgO is smoother than that on STO. The rough surface of the film on SrTiO3 is considered to be partly due to the growth of the film along the steps of the substrate, while the film on MgO grows without the influence of the steps on the substrate.",
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