Structural and magnetic studies of Co layer in epitaxially grown FeCo bilayers

S. G. Wang; C. Wang; A. Kohn; S. Lee; J. P. Goff; L. J. Singh; Z. H. Barber; R. C.C. Ward

doi:10.1063/1.2672175

Structural and magnetic studies of Co layer in epitaxially grown FeCo bilayers

S. G. Wang, C. Wang, A. Kohn, S. Lee, J. P. Goff, L. J. Singh, Z. H. Barber, R. C.C. Ward

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Abstract

Epitaxial FeCo bilayers were grown on MgO (001) substrates by molecular beam epitaxy, characterized in situ by reflection high-energy electron diffraction and ex situ by x-ray diffraction (XRD), as well as high-resolution transmission electron microscopy (HRTEM). The hexagonal close packed (hcp) structure in two perpendicular domains was identified for the Co layer using XRD and HRTEM techniques. Co is found to grow in the (11-20) orientation with the c axis in plane, parallel either to Fe[110] or Fe [1-10] The magnetic properties as a function of Co thickness in Fe (10 nm) Co (t) (t=5-20 nm) bilayers were investigated. The FeCo bilayers exhibit in plane magnetization with easy axes parallel to Fe[100] and Fe[010] axes. The magnetic behavior is consistent with the orientation relationship between the Fe and Co layers.

Original language	English
Article number	09D103
Journal	Journal of Applied Physics
Volume	101
Issue number	9
DOIs	https://doi.org/10.1063/1.2672175
State	Published - 21 May 2007
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2672175

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title = "Structural and magnetic studies of Co layer in epitaxially grown FeCo bilayers",

abstract = "Epitaxial FeCo bilayers were grown on MgO (001) substrates by molecular beam epitaxy, characterized in situ by reflection high-energy electron diffraction and ex situ by x-ray diffraction (XRD), as well as high-resolution transmission electron microscopy (HRTEM). The hexagonal close packed (hcp) structure in two perpendicular domains was identified for the Co layer using XRD and HRTEM techniques. Co is found to grow in the (11-20) orientation with the c axis in plane, parallel either to Fe[110] or Fe [1-10] The magnetic properties as a function of Co thickness in Fe (10 nm) Co (t) (t=5-20 nm) bilayers were investigated. The FeCo bilayers exhibit in plane magnetization with easy axes parallel to Fe[100] and Fe[010] axes. The magnetic behavior is consistent with the orientation relationship between the Fe and Co layers.",

author = "Wang, {S. G.} and C. Wang and A. Kohn and S. Lee and Goff, {J. P.} and Singh, {L. J.} and Barber, {Z. H.} and Ward, {R. C.C.}",

note = "Funding Information: The authors are grateful to K. Belcher for technical support and to the Engineering and Physical Sciences Research Council (EPSRC) for financial support.",

year = "2007",

month = may,

day = "21",

doi = "10.1063/1.2672175",

language = "English",

volume = "101",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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T1 - Structural and magnetic studies of Co layer in epitaxially grown FeCo bilayers

AU - Wang, S. G.

AU - Wang, C.

AU - Kohn, A.

AU - Lee, S.

AU - Goff, J. P.

AU - Singh, L. J.

AU - Barber, Z. H.

AU - Ward, R. C.C.

N1 - Funding Information: The authors are grateful to K. Belcher for technical support and to the Engineering and Physical Sciences Research Council (EPSRC) for financial support.

PY - 2007/5/21

Y1 - 2007/5/21

N2 - Epitaxial FeCo bilayers were grown on MgO (001) substrates by molecular beam epitaxy, characterized in situ by reflection high-energy electron diffraction and ex situ by x-ray diffraction (XRD), as well as high-resolution transmission electron microscopy (HRTEM). The hexagonal close packed (hcp) structure in two perpendicular domains was identified for the Co layer using XRD and HRTEM techniques. Co is found to grow in the (11-20) orientation with the c axis in plane, parallel either to Fe[110] or Fe [1-10] The magnetic properties as a function of Co thickness in Fe (10 nm) Co (t) (t=5-20 nm) bilayers were investigated. The FeCo bilayers exhibit in plane magnetization with easy axes parallel to Fe[100] and Fe[010] axes. The magnetic behavior is consistent with the orientation relationship between the Fe and Co layers.

AB - Epitaxial FeCo bilayers were grown on MgO (001) substrates by molecular beam epitaxy, characterized in situ by reflection high-energy electron diffraction and ex situ by x-ray diffraction (XRD), as well as high-resolution transmission electron microscopy (HRTEM). The hexagonal close packed (hcp) structure in two perpendicular domains was identified for the Co layer using XRD and HRTEM techniques. Co is found to grow in the (11-20) orientation with the c axis in plane, parallel either to Fe[110] or Fe [1-10] The magnetic properties as a function of Co thickness in Fe (10 nm) Co (t) (t=5-20 nm) bilayers were investigated. The FeCo bilayers exhibit in plane magnetization with easy axes parallel to Fe[100] and Fe[010] axes. The magnetic behavior is consistent with the orientation relationship between the Fe and Co layers.

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U2 - 10.1063/1.2672175

DO - 10.1063/1.2672175

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VL - 101

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

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ER -

Structural and magnetic studies of Co layer in epitaxially grown FeCo bilayers

Abstract

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