Observation of suppressed interdiffusion in FeRh/FePt-Ta bilayer thin films

Sung Uk Jang; Eon Byeong Park; Ji Hong Kim; Ki Hoon Park; Ji Sung Lee; Young Keun Kim; Seungmin Hyun; Hak Joo Lee; Soon Ju Kwon; Hwan Soo Lee

doi:10.1109/TMAG.2010.2042148

Observation of suppressed interdiffusion in FeRh/FePt-Ta bilayer thin films

Sung Uk Jang, Eon Byeong Park, Ji Hong Kim, Ki Hoon Park, Ji Sung Lee, Young Keun Kim, Seungmin Hyun, Hak Joo Lee, Soon Ju Kwon, Hwan Soo Lee

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

1 Citation (Scopus)

Abstract

FeRh/FePt bilayers on MgO (100) substrates were fabricated by rf-magnetron sputtering, and the magnetic properties and microstructures of the bilayers were studied in terms of Ta addition to the storage layer. Compared to undoped FeRh/FePt bilayers, FeRh/FePt-Ta bilayer films showed improved magnetic properties and lower degree of interdiffusion. The FeRh/FePt-Ta bilayers clearly demonstrated the AFM-FM transition. Reduced interdiffusion by Ta segregation along grain boundaries was speculated to be a possible cause for the observed improvement in magnetic properties when fabricated at high temperature.

Original language	English
Article number	5467680
Pages (from-to)	2104-2107
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	46
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2010.2042148
Publication status	Published - 2010 Jun

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported in part by Center for Nanoscale Mechatronics and Manufacturing under Grant 07-K1401-00910, one of the 21th Century Frontier Research Programs which are supported by the Ministry of Science and Technology, Korea.

Keywords

FePt-Ta
FeRh/FePt-Ta bilayer
Ferromagnetic and antiferromagentic transition
Interdiffusion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2010.2042148

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title = "Observation of suppressed interdiffusion in FeRh/FePt-Ta bilayer thin films",

abstract = "FeRh/FePt bilayers on MgO (100) substrates were fabricated by rf-magnetron sputtering, and the magnetic properties and microstructures of the bilayers were studied in terms of Ta addition to the storage layer. Compared to undoped FeRh/FePt bilayers, FeRh/FePt-Ta bilayer films showed improved magnetic properties and lower degree of interdiffusion. The FeRh/FePt-Ta bilayers clearly demonstrated the AFM-FM transition. Reduced interdiffusion by Ta segregation along grain boundaries was speculated to be a possible cause for the observed improvement in magnetic properties when fabricated at high temperature.",

keywords = "FePt-Ta, FeRh/FePt-Ta bilayer, Ferromagnetic and antiferromagentic transition, Interdiffusion",

author = "Jang, {Sung Uk} and Park, {Eon Byeong} and Kim, {Ji Hong} and Park, {Ki Hoon} and Lee, {Ji Sung} and Kim, {Young Keun} and Seungmin Hyun and Lee, {Hak Joo} and Kwon, {Soon Ju} and Lee, {Hwan Soo}",

note = "Funding Information: ACKNOWLEDGMENT This work was supported in part by Center for Nanoscale Mechatronics and Manufacturing under Grant 07-K1401-00910, one of the 21th Century Frontier Research Programs which are supported by the Ministry of Science and Technology, Korea.",

year = "2010",

month = jun,

doi = "10.1109/TMAG.2010.2042148",

language = "English",

volume = "46",

pages = "2104--2107",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

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T1 - Observation of suppressed interdiffusion in FeRh/FePt-Ta bilayer thin films

AU - Jang, Sung Uk

AU - Park, Eon Byeong

AU - Kim, Ji Hong

AU - Park, Ki Hoon

AU - Lee, Ji Sung

AU - Kim, Young Keun

AU - Hyun, Seungmin

AU - Lee, Hak Joo

AU - Kwon, Soon Ju

AU - Lee, Hwan Soo

N1 - Funding Information: ACKNOWLEDGMENT This work was supported in part by Center for Nanoscale Mechatronics and Manufacturing under Grant 07-K1401-00910, one of the 21th Century Frontier Research Programs which are supported by the Ministry of Science and Technology, Korea.

PY - 2010/6

Y1 - 2010/6

N2 - FeRh/FePt bilayers on MgO (100) substrates were fabricated by rf-magnetron sputtering, and the magnetic properties and microstructures of the bilayers were studied in terms of Ta addition to the storage layer. Compared to undoped FeRh/FePt bilayers, FeRh/FePt-Ta bilayer films showed improved magnetic properties and lower degree of interdiffusion. The FeRh/FePt-Ta bilayers clearly demonstrated the AFM-FM transition. Reduced interdiffusion by Ta segregation along grain boundaries was speculated to be a possible cause for the observed improvement in magnetic properties when fabricated at high temperature.

AB - FeRh/FePt bilayers on MgO (100) substrates were fabricated by rf-magnetron sputtering, and the magnetic properties and microstructures of the bilayers were studied in terms of Ta addition to the storage layer. Compared to undoped FeRh/FePt bilayers, FeRh/FePt-Ta bilayer films showed improved magnetic properties and lower degree of interdiffusion. The FeRh/FePt-Ta bilayers clearly demonstrated the AFM-FM transition. Reduced interdiffusion by Ta segregation along grain boundaries was speculated to be a possible cause for the observed improvement in magnetic properties when fabricated at high temperature.

KW - FePt-Ta

KW - FeRh/FePt-Ta bilayer

KW - Ferromagnetic and antiferromagentic transition

KW - Interdiffusion

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U2 - 10.1109/TMAG.2010.2042148

DO - 10.1109/TMAG.2010.2042148

M3 - Article

AN - SCOPUS:77952869117

SN - 0018-9464

VL - 46

SP - 2104

EP - 2107

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 6

M1 - 5467680

ER -

Observation of suppressed interdiffusion in FeRh/FePt-Ta bilayer thin films

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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