Inclined substrate deposition by evaporation of magnesium oxide for coated conductors

Markus Bauer; Ralf Metzger; Robert Semerad; Paul Berberich; Helmut Kinder

Inclined substrate deposition by evaporation of magnesium oxide for coated conductors

Markus Bauer, Ralf Metzger, Robert Semerad, Paul Berberich, Helmut Kinder

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Technical University of Munich

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Biaxially textured MgO buffer layers were deposited on metal substrates using `inclined substrate deposition' (ISD). The influence of the substrate inclination angle, deposition rate, and film thickness on the texture is shown. Scanning electron microscopy reveals columnar growth. We developed a growth model to explain the texturing. To test this model we have carried out 3D Monte-Carlo simulations. We find that the preferred orientation arises from mutual shadowing of the columns and directional surface diffusion due to their initial momentum. YBa₂Cu₃O₇ (YBCO) films deposited on the ISD buffer layers are highly textured. The ab-planes of the YBCO are tilted with respect to the surface by typically 25° towards the direction of MgO vapor incidence. Therefore, the critical current density j_c is anisotropic with up to 8×10⁵ MA/cm² in one direction and 4×10⁵ MA/cm² in the other. For tape coating the MgO deposition direction can be chosen so that the high j_c is along the tape.

Original language	English
Pages (from-to)	O2.2.1-O2.2.10
Journal	Materials Research Society Symposium - Proceedings
Volume	587
State	Published - 2000
Event	Substrate Engineering Paving the Way to Epitaxy - Boston, MA, USA Duration: 29 Nov 1999 → 3 Dec 1999

Cite this

@article{b055055cf04245499a45b86604d1eb81,

title = "Inclined substrate deposition by evaporation of magnesium oxide for coated conductors",

abstract = "Biaxially textured MgO buffer layers were deposited on metal substrates using `inclined substrate deposition' (ISD). The influence of the substrate inclination angle, deposition rate, and film thickness on the texture is shown. Scanning electron microscopy reveals columnar growth. We developed a growth model to explain the texturing. To test this model we have carried out 3D Monte-Carlo simulations. We find that the preferred orientation arises from mutual shadowing of the columns and directional surface diffusion due to their initial momentum. YBa2Cu3O7 (YBCO) films deposited on the ISD buffer layers are highly textured. The ab-planes of the YBCO are tilted with respect to the surface by typically 25° towards the direction of MgO vapor incidence. Therefore, the critical current density jc is anisotropic with up to 8×105 MA/cm2 in one direction and 4×105 MA/cm2 in the other. For tape coating the MgO deposition direction can be chosen so that the high jc is along the tape.",

author = "Markus Bauer and Ralf Metzger and Robert Semerad and Paul Berberich and Helmut Kinder",

year = "2000",

language = "English",

volume = "587",

pages = "O2.2.1--O2.2.10",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Substrate Engineering Paving the Way to Epitaxy ; Conference date: 29-11-1999 Through 03-12-1999",

}

TY - JOUR

T1 - Inclined substrate deposition by evaporation of magnesium oxide for coated conductors

AU - Bauer, Markus

AU - Metzger, Ralf

AU - Semerad, Robert

AU - Berberich, Paul

AU - Kinder, Helmut

PY - 2000

Y1 - 2000

N2 - Biaxially textured MgO buffer layers were deposited on metal substrates using `inclined substrate deposition' (ISD). The influence of the substrate inclination angle, deposition rate, and film thickness on the texture is shown. Scanning electron microscopy reveals columnar growth. We developed a growth model to explain the texturing. To test this model we have carried out 3D Monte-Carlo simulations. We find that the preferred orientation arises from mutual shadowing of the columns and directional surface diffusion due to their initial momentum. YBa2Cu3O7 (YBCO) films deposited on the ISD buffer layers are highly textured. The ab-planes of the YBCO are tilted with respect to the surface by typically 25° towards the direction of MgO vapor incidence. Therefore, the critical current density jc is anisotropic with up to 8×105 MA/cm2 in one direction and 4×105 MA/cm2 in the other. For tape coating the MgO deposition direction can be chosen so that the high jc is along the tape.

AB - Biaxially textured MgO buffer layers were deposited on metal substrates using `inclined substrate deposition' (ISD). The influence of the substrate inclination angle, deposition rate, and film thickness on the texture is shown. Scanning electron microscopy reveals columnar growth. We developed a growth model to explain the texturing. To test this model we have carried out 3D Monte-Carlo simulations. We find that the preferred orientation arises from mutual shadowing of the columns and directional surface diffusion due to their initial momentum. YBa2Cu3O7 (YBCO) films deposited on the ISD buffer layers are highly textured. The ab-planes of the YBCO are tilted with respect to the surface by typically 25° towards the direction of MgO vapor incidence. Therefore, the critical current density jc is anisotropic with up to 8×105 MA/cm2 in one direction and 4×105 MA/cm2 in the other. For tape coating the MgO deposition direction can be chosen so that the high jc is along the tape.

UR - http://www.scopus.com/inward/record.url?scp=0034496966&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034496966

SN - 0272-9172

VL - 587

SP - O2.2.1-O2.2.10

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Substrate Engineering Paving the Way to Epitaxy

Y2 - 29 November 1999 through 3 December 1999

ER -

Inclined substrate deposition by evaporation of magnesium oxide for coated conductors

Abstract

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