Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates

Kyung Ho Kim, Hyung Jun Kim, Jae Pyung Ahn, Jun Woo Choi, Jun Hyun Han, Rizcky Tamarany, Seung Cheol Lee, Sung Ok Won, Joonyeon Chang, Young-geun Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The microstructural evolution and the effect on in-plane magnetic properties of epitaxial Fe/MgO layers grown on InAs(001) substrates have been investigated as a function of MgO growth temperature. The Fe grows three-dimensional islands with two different in-plane textures along [010] and [11̄0] directions on the MgO layers grown below 200 °C in remarkable contrast to two-dimensional Fe layers on the MgO layers grown above 300 °C. As the MgO growth temperature increases, both tensile-strained MgO and the subsequent Fe are simultaneously relaxed, and the distribution of 45°-rotated Fe lattices with [010] texture becomes dominant. The experimental results imply that the microstructural evolution of the Fe is strongly influenced by the underlying misfit strain within the MgO layers grown at different temperatures. The two different epitaxial relationships of the Fe islands lead to no magnetic anisotropy, while the Fe layer with the single epitaxial relationship of Fe[010]//MgO[11̄0]//InAs[11̄0] shows cubic magnetic anisotropy.

Original languageEnglish
Pages (from-to)2889-2896
Number of pages8
JournalCrystal Growth and Design
Volume11
Issue number7
DOIs
Publication statusPublished - 2011 Jul 6

Fingerprint

Magnetic anisotropy
Microstructural evolution
Growth temperature
Textures
Substrates
Magnetic properties
textures
anisotropy
Temperature
temperature
indium arsenide
magnetic properties
Direction compound

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kim, K. H., Kim, H. J., Ahn, J. P., Choi, J. W., Han, J. H., Tamarany, R., ... Kim, Y. (2011). Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates. Crystal Growth and Design, 11(7), 2889-2896. https://doi.org/10.1021/cg200051k

Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates. / Kim, Kyung Ho; Kim, Hyung Jun; Ahn, Jae Pyung; Choi, Jun Woo; Han, Jun Hyun; Tamarany, Rizcky; Lee, Seung Cheol; Won, Sung Ok; Chang, Joonyeon; Kim, Young-geun.

In: Crystal Growth and Design, Vol. 11, No. 7, 06.07.2011, p. 2889-2896.

Research output: Contribution to journalArticle

Kim, KH, Kim, HJ, Ahn, JP, Choi, JW, Han, JH, Tamarany, R, Lee, SC, Won, SO, Chang, J & Kim, Y 2011, 'Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates', Crystal Growth and Design, vol. 11, no. 7, pp. 2889-2896. https://doi.org/10.1021/cg200051k
Kim, Kyung Ho ; Kim, Hyung Jun ; Ahn, Jae Pyung ; Choi, Jun Woo ; Han, Jun Hyun ; Tamarany, Rizcky ; Lee, Seung Cheol ; Won, Sung Ok ; Chang, Joonyeon ; Kim, Young-geun. / Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates. In: Crystal Growth and Design. 2011 ; Vol. 11, No. 7. pp. 2889-2896.
@article{42fe4c77615a424c8e3d43e847aa1352,
title = "Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates",
abstract = "The microstructural evolution and the effect on in-plane magnetic properties of epitaxial Fe/MgO layers grown on InAs(001) substrates have been investigated as a function of MgO growth temperature. The Fe grows three-dimensional islands with two different in-plane textures along [010] and [11̄0] directions on the MgO layers grown below 200 °C in remarkable contrast to two-dimensional Fe layers on the MgO layers grown above 300 °C. As the MgO growth temperature increases, both tensile-strained MgO and the subsequent Fe are simultaneously relaxed, and the distribution of 45°-rotated Fe lattices with [010] texture becomes dominant. The experimental results imply that the microstructural evolution of the Fe is strongly influenced by the underlying misfit strain within the MgO layers grown at different temperatures. The two different epitaxial relationships of the Fe islands lead to no magnetic anisotropy, while the Fe layer with the single epitaxial relationship of Fe[010]//MgO[11̄0]//InAs[11̄0] shows cubic magnetic anisotropy.",
author = "Kim, {Kyung Ho} and Kim, {Hyung Jun} and Ahn, {Jae Pyung} and Choi, {Jun Woo} and Han, {Jun Hyun} and Rizcky Tamarany and Lee, {Seung Cheol} and Won, {Sung Ok} and Joonyeon Chang and Young-geun Kim",
year = "2011",
month = "7",
day = "6",
doi = "10.1021/cg200051k",
language = "English",
volume = "11",
pages = "2889--2896",
journal = "Crystal Growth and Design",
issn = "1528-7483",
publisher = "American Chemical Society",
number = "7",

}

TY - JOUR

T1 - Microstructural changes of epitaxial Fe/MgO layers grown on InAs(001) substrates

AU - Kim, Kyung Ho

AU - Kim, Hyung Jun

AU - Ahn, Jae Pyung

AU - Choi, Jun Woo

AU - Han, Jun Hyun

AU - Tamarany, Rizcky

AU - Lee, Seung Cheol

AU - Won, Sung Ok

AU - Chang, Joonyeon

AU - Kim, Young-geun

PY - 2011/7/6

Y1 - 2011/7/6

N2 - The microstructural evolution and the effect on in-plane magnetic properties of epitaxial Fe/MgO layers grown on InAs(001) substrates have been investigated as a function of MgO growth temperature. The Fe grows three-dimensional islands with two different in-plane textures along [010] and [11̄0] directions on the MgO layers grown below 200 °C in remarkable contrast to two-dimensional Fe layers on the MgO layers grown above 300 °C. As the MgO growth temperature increases, both tensile-strained MgO and the subsequent Fe are simultaneously relaxed, and the distribution of 45°-rotated Fe lattices with [010] texture becomes dominant. The experimental results imply that the microstructural evolution of the Fe is strongly influenced by the underlying misfit strain within the MgO layers grown at different temperatures. The two different epitaxial relationships of the Fe islands lead to no magnetic anisotropy, while the Fe layer with the single epitaxial relationship of Fe[010]//MgO[11̄0]//InAs[11̄0] shows cubic magnetic anisotropy.

AB - The microstructural evolution and the effect on in-plane magnetic properties of epitaxial Fe/MgO layers grown on InAs(001) substrates have been investigated as a function of MgO growth temperature. The Fe grows three-dimensional islands with two different in-plane textures along [010] and [11̄0] directions on the MgO layers grown below 200 °C in remarkable contrast to two-dimensional Fe layers on the MgO layers grown above 300 °C. As the MgO growth temperature increases, both tensile-strained MgO and the subsequent Fe are simultaneously relaxed, and the distribution of 45°-rotated Fe lattices with [010] texture becomes dominant. The experimental results imply that the microstructural evolution of the Fe is strongly influenced by the underlying misfit strain within the MgO layers grown at different temperatures. The two different epitaxial relationships of the Fe islands lead to no magnetic anisotropy, while the Fe layer with the single epitaxial relationship of Fe[010]//MgO[11̄0]//InAs[11̄0] shows cubic magnetic anisotropy.

UR - http://www.scopus.com/inward/record.url?scp=79960034775&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960034775&partnerID=8YFLogxK

U2 - 10.1021/cg200051k

DO - 10.1021/cg200051k

M3 - Article

AN - SCOPUS:79960034775

VL - 11

SP - 2889

EP - 2896

JO - Crystal Growth and Design

JF - Crystal Growth and Design

SN - 1528-7483

IS - 7

ER -