Asymmetric exchange bias in NiFe/FeMn/NiFe multilayer films

Young Woo Lee; Seongmin Hong; Cheol Gi Kim; Chong Oh Kim

doi:10.1016/j.jmmm.2003.12.253

Asymmetric exchange bias in NiFe/FeMn/NiFe multilayer films

Young Woo Lee, Seongmin Hong, Cheol Gi Kim, Chong Oh Kim

Department of Physics and Chemistry

Chungnam National University

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Exchange bias in the two interfaces of NiFe/FeMn/NiFe films is investigated. The lower NiFe shows smaller coercivity and larger exchange shift than those of upper NiFe, respectively. As the FeMn thickness become thicker and thicker, upper interface roughness increases and exchange bias decreases. When the thickness of FeMn is less than 7 nm, the roughness of top surface of FeMn is maintained with the same level of the bottom interface, and top and bottom NiFe layers shows little difference in coercivity and exchange bias.

Original language	English
Pages (from-to)	e943-e944
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.253
State	Published - May 2004

Bibliographical note

Funding Information:
This research is supported by KOSEF through the ReCAMM in CNU, Korea.

Keywords

Exchange bias
FeMn
Interface roughness
NiFe

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10.1016/j.jmmm.2003.12.253

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title = "Asymmetric exchange bias in NiFe/FeMn/NiFe multilayer films",

abstract = "Exchange bias in the two interfaces of NiFe/FeMn/NiFe films is investigated. The lower NiFe shows smaller coercivity and larger exchange shift than those of upper NiFe, respectively. As the FeMn thickness become thicker and thicker, upper interface roughness increases and exchange bias decreases. When the thickness of FeMn is less than 7 nm, the roughness of top surface of FeMn is maintained with the same level of the bottom interface, and top and bottom NiFe layers shows little difference in coercivity and exchange bias.",

keywords = "Exchange bias, FeMn, Interface roughness, NiFe",

author = "Lee, \{Young Woo\} and Seongmin Hong and Kim, \{Cheol Gi\} and Kim, \{Chong Oh\}",

note = "Funding Information: This research is supported by KOSEF through the ReCAMM in CNU, Korea.",

year = "2004",

month = may,

doi = "10.1016/j.jmmm.2003.12.253",

language = "English",

volume = "272-276",

pages = "e943--e944",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "SUPPL. 1",

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TY - JOUR

T1 - Asymmetric exchange bias in NiFe/FeMn/NiFe multilayer films

AU - Lee, Young Woo

AU - Hong, Seongmin

AU - Kim, Cheol Gi

AU - Kim, Chong Oh

N1 - Funding Information: This research is supported by KOSEF through the ReCAMM in CNU, Korea.

PY - 2004/5

Y1 - 2004/5

N2 - Exchange bias in the two interfaces of NiFe/FeMn/NiFe films is investigated. The lower NiFe shows smaller coercivity and larger exchange shift than those of upper NiFe, respectively. As the FeMn thickness become thicker and thicker, upper interface roughness increases and exchange bias decreases. When the thickness of FeMn is less than 7 nm, the roughness of top surface of FeMn is maintained with the same level of the bottom interface, and top and bottom NiFe layers shows little difference in coercivity and exchange bias.

AB - Exchange bias in the two interfaces of NiFe/FeMn/NiFe films is investigated. The lower NiFe shows smaller coercivity and larger exchange shift than those of upper NiFe, respectively. As the FeMn thickness become thicker and thicker, upper interface roughness increases and exchange bias decreases. When the thickness of FeMn is less than 7 nm, the roughness of top surface of FeMn is maintained with the same level of the bottom interface, and top and bottom NiFe layers shows little difference in coercivity and exchange bias.

KW - Exchange bias

KW - FeMn

KW - Interface roughness

KW - NiFe

UR - https://www.scopus.com/pages/publications/23144462371

U2 - 10.1016/j.jmmm.2003.12.253

DO - 10.1016/j.jmmm.2003.12.253

M3 - Article

AN - SCOPUS:23144462371

SN - 0304-8853

VL - 272-276

SP - e943-e944

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - SUPPL. 1

ER -

Asymmetric exchange bias in NiFe/FeMn/NiFe multilayer films

Abstract

Bibliographical note

Keywords

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