Sm (Co,Cu)5/Fe exchange spring multilayer films with high energy product

J. Zhang; Y. K. Takahashi; R. Gopalan; K. Hono

doi:10.1063/1.1889238

Sm (Co,Cu)₅/Fe exchange spring multilayer films with high energy product

J. Zhang^*, Y. K. Takahashi, R. Gopalan, K. Hono

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

The [Sm (Co,Cu)5 Fe]6 multilayer film that was fabricated by annealing Cr [a- (Sm-Co) (9 nm) Cu (x nm) Fe (5 nm) Cu (x nm)] 6 Cr (x=0-0.75) multilayer has shown good in-plane texture and a high maximum energy product (BH)max of 32 MGOe with a coercivity of 7.24 kOe. The addition of the Cu layer between the a-d-SM- Co6 and Fe layers with optimum thickness increases the coercivity significantly, thereby improving the maximum energy product. The single-phase behavior and the irreversible rotation in the demagnetization process indicates strong exchange coupling between the Sm (Co,Cu)5 and Fe layers.

Original language	English
Article number	122509
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	12
DOIs	https://doi.org/10.1063/1.1889238
Publication status	Published - 2005 Mar 21
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1889238

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@article{244200bd4da94e9cada5e83393a20d2e,

title = "Sm (Co,Cu)5/Fe exchange spring multilayer films with high energy product",

abstract = "The [Sm (Co,Cu)5 Fe]6 multilayer film that was fabricated by annealing Cr [a- (Sm-Co) (9 nm) Cu (x nm) Fe (5 nm) Cu (x nm)] 6 Cr (x=0-0.75) multilayer has shown good in-plane texture and a high maximum energy product (BH)max of 32 MGOe with a coercivity of 7.24 kOe. The addition of the Cu layer between the a-d-SM- Co6 and Fe layers with optimum thickness increases the coercivity significantly, thereby improving the maximum energy product. The single-phase behavior and the irreversible rotation in the demagnetization process indicates strong exchange coupling between the Sm (Co,Cu)5 and Fe layers.",

author = "J. Zhang and Takahashi, {Y. K.} and R. Gopalan and K. Hono",

note = "Funding Information: This work was supported partly by the Special Coordination Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Ministry of Education, Culture, Sports, Science and Technology. Two authors (J.Z. and Y.K.T.) acknowledge the Japan Science Promotion Society for the JSPS fellowships. All the authors thank Ms. T. O. Seki and Dr. C. Y. You for the help.",

year = "2005",

month = mar,

day = "21",

doi = "10.1063/1.1889238",

language = "English",

volume = "86",

pages = "1--3",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "12",

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TY - JOUR

T1 - Sm (Co,Cu)5/Fe exchange spring multilayer films with high energy product

AU - Zhang, J.

AU - Takahashi, Y. K.

AU - Gopalan, R.

AU - Hono, K.

N1 - Funding Information: This work was supported partly by the Special Coordination Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Ministry of Education, Culture, Sports, Science and Technology. Two authors (J.Z. and Y.K.T.) acknowledge the Japan Science Promotion Society for the JSPS fellowships. All the authors thank Ms. T. O. Seki and Dr. C. Y. You for the help.

PY - 2005/3/21

Y1 - 2005/3/21

N2 - The [Sm (Co,Cu)5 Fe]6 multilayer film that was fabricated by annealing Cr [a- (Sm-Co) (9 nm) Cu (x nm) Fe (5 nm) Cu (x nm)] 6 Cr (x=0-0.75) multilayer has shown good in-plane texture and a high maximum energy product (BH)max of 32 MGOe with a coercivity of 7.24 kOe. The addition of the Cu layer between the a-d-SM- Co6 and Fe layers with optimum thickness increases the coercivity significantly, thereby improving the maximum energy product. The single-phase behavior and the irreversible rotation in the demagnetization process indicates strong exchange coupling between the Sm (Co,Cu)5 and Fe layers.

AB - The [Sm (Co,Cu)5 Fe]6 multilayer film that was fabricated by annealing Cr [a- (Sm-Co) (9 nm) Cu (x nm) Fe (5 nm) Cu (x nm)] 6 Cr (x=0-0.75) multilayer has shown good in-plane texture and a high maximum energy product (BH)max of 32 MGOe with a coercivity of 7.24 kOe. The addition of the Cu layer between the a-d-SM- Co6 and Fe layers with optimum thickness increases the coercivity significantly, thereby improving the maximum energy product. The single-phase behavior and the irreversible rotation in the demagnetization process indicates strong exchange coupling between the Sm (Co,Cu)5 and Fe layers.

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U2 - 10.1063/1.1889238

DO - 10.1063/1.1889238

M3 - Article

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VL - 86

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EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 122509

ER -

Sm (Co,Cu)₅/Fe exchange spring multilayer films with high energy product

Abstract

ASJC Scopus subject areas

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