Microstructure and intergranular diffusion in exchange-coupled Sm-Co/Fe nanocomposites

被引：37
|
作者：
Zhang, Ying [1 ,2 ]
Kramer, M. J. [1 ]
Rong, Chuanbing [2 ]
Liu, J. Ping [2 ]
机构：
[1] US DOE, Ames Lab, Mat Sci & Engn, Ames, IA 50011 USA
[2] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 03期
关键词：
annealing; cobalt alloys; diffusion; electron energy loss spectra; exchange interactions (electron); iron alloys; nanocomposites; nanomagnetics; samarium alloys; transmission electron microscopy; PERMANENT-MAGNETS; ENERGY PRODUCT; CO;
D O I：
10.1063/1.3467202
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate homogenous distribution of bcc FeCo soft phase with grain size of 20-30 nm in the annealed Sm-Co/Fe bulk samples by energy filtered transmission electron microscopy (EFTEM). Quantitative Co/Fe interdiffusion measured using both energy dispersive spectroscopy (EDS) and parallel electron energy loss spectroscopy (PEELS) shows Fe60 +/- 5%Co40 +/- 5% for the magnetically soft bcc phase and Sm-2(Co0.82Fe0.18)(7) and Sm(Co0.80Fe0.20)(5) respectively for the magnetically hard phases in these two alloy systems after optimal annealing. The graded interface develops in both samples due to the Co/Fe interchange between the hard and soft phases and the bcc soft phase was determined. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3467202]
引用
收藏
页数：3
相关论文
共 50 条
  • [1] Rapidly annealed exchange-coupled Sm-Co/Co multilayers
    Zhou, J
    Skomski, R
    Liu, Y
    Sui, YC
    Liu, W
    Sellmyer, DJ
    JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)
  • [2] OBSERVATION AND COMPUTER-SIMULATION OF MAGNETIZATION PROCESSES IN EXCHANGE-COUPLED SM-CO/CO-ZR/SM-CO' SANDWICHES
    WUCHNER, S
    VOIRON, J
    TOUSSAINT, JC
    PREJEAN, JJ
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 148 (1-2) : 264 - 266
  • [3] Exchange-coupled Sm-Co/Nd-Co nanomagnets: correlation between soft phase anisotropy and exchange field
    Guo, ZJ
    Jiang, JS
    Pearson, JE
    Bader, SD
    Liu, JP
    APPLIED PHYSICS LETTERS, 2002, 81 (11) : 2029 - 2031
  • [4] High-Temperature Magnetic Properties of Exchange-Coupled Sm-Co/Nd-Fe-B Hybrid Nanocomposite Magnets
    Poudyal, Narayan
    Mohapatra, Jeotikanta
    Xing, Meiying
    Kim, Choong-Un
    Liu, J. Ping
    IEEE MAGNETICS LETTERS, 2018, 9
  • [5] Effect of Mo interlayer on magnetic properties of exchange coupled Sm-Co/Fe bilayers
    Shahzad, Furrukh
    Siddiqi, Saadat Anwar
    Yan, Shi-Shen
    Jing, Xu
    Bai Hong-liang
    Tang Min-jian
    Xing Peng-fei
    He Shu-min
    Xu Tong-shuai
    BRAZILIAN JOURNAL OF PHYSICS, 2010, 40 (02) : 201 - 203
  • [6] Enhancement in energy product in Sm-Co/Fe exchange coupled magnetic layers with molybdenum interlayers
    Furrukh Shahzad
    Saadat Anwar Siddiqi
    Journal of Rare Earths, 2010, 28 (02) : 274 - 276
  • [7] Enhancement in energy product in Sm-Co/Fe exchange coupled magnetic layers with molybdenum interlayers
    Shahzad, Furrukh
    Siddiqi, Saadat Anwar
    Yan Shishen
    JOURNAL OF RARE EARTHS, 2010, 28 (02) : 274 - 276
  • [8] Magnetic properties of Sm-Co/Fe exchange spring magnets
    Yildiz, F.
    Yalcin, O.
    Oezdemir, M.
    Aktas, B.
    Koeseoglu, Y.
    Jiang, J. S.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : E1941 - E1942
  • [9] Anisotropy determination in epitaxial Sm-Co/Fe exchange springs
    Pechan, MJ
    Teng, N
    Stewart, JD
    Hilt, JZ
    Fullerton, EE
    Jiang, JS
    Sowers, CH
    Bader, SD
    JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) : 6686 - 6688
  • [10] ENHANCEMENT OF ENERGY PRODUCT WITH INSERTION OF Ti BETWEEN EXCHANGE COUPLED Sm-Co AND Fe LAYERS
    Shahzad, Furrukh
    Siddiqi, Saadat Anwar
    Yan, Shi-Shen
    Anwar, M. Sabieh
    Ramay, S. M.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2011, 25 (22): : 2957 - 2963
12345