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Chin. Phys. B, 2015, Vol. 24(7): 077103    DOI: 10.1088/1674-1056/24/7/077103
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Enhanced coercivity and remanence of PrCo5 nanoflakes prepared by surfactant-assisted ball milling with heat-treated starting powder

Zuo Wen-Liang, Zhao Xin, Xiong Jie-Fu, Shang Rong-Xiang, Zhang Ming, Hu Feng-Xia, Sun Ji-Rong, Shen Bao-Gen
State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Abstract  

PrCo5 nanoflakes with strong texture and high coercivity of 8.15 kOe were prepared by surfactant-assisted ball milling with heat-treated starting powder. The thickness and length of the as-milled nanoflakes are mainly in the ranges of 50–100 nm and 0.5–3 μm, respectively. The x-ray diffraction patterns demonstrate that the heat treatment can increase the single phase and crystallinity of the PrCo5 compound, and combined with the demagnetization curves, indicate that the single phase and crystallinity are important for preparing high-coercivity and strong-textured rare earth permanent magnetic nanoflakes. In addition, the coercivity mechanism of the as-milled PrCo5 nanoflakes is studied by the angle dependence of coercivity for an aligned sample and the field dependence of coercivity, isothermal (IRM) and dc demagnetizing (DCD) remanence curves for an unaligned sample. The results indicate that the coercivity is dominated by co-existing mechanisms of pinning and nucleation. Furthermore, exchange coupling and dipolar coupling also co-exist in the sample.

Keywords:  coercivity mechanism      textured PrCo5 nanoflakes      surfactant-assisted ball milling      heat treatment  
Received:  03 March 2015      Revised:  30 March 2015      Published:  05 July 2015
PACS:  71.20.Eh (Rare earth metals and alloys)  
  75.75.Cd (Fabrication of magnetic nanostructures)  
  75.30.Gw (Magnetic anisotropy)  
  75.60.Jk (Magnetization reversal mechanisms)  
Fund: 

Project supported by the National Basic Research Program of China (Grant No. 2014CB643702), the National Natural Science Foundation of China (Grant No. 51401235), and Beijing Natural Science Foundation, China (Grant No. 2152034).

Corresponding Authors:  Zuo Wen-Liang, Shen Bao-Gen     E-mail:  wlzuo@iphy.ac.cn;shenbg@aphy.iphy.ac.cn

Cite this article: 

Zuo Wen-Liang, Zhao Xin, Xiong Jie-Fu, Shang Rong-Xiang, Zhang Ming, Hu Feng-Xia, Sun Ji-Rong, Shen Bao-Gen Enhanced coercivity and remanence of PrCo5 nanoflakes prepared by surfactant-assisted ball milling with heat-treated starting powder 2015 Chin. Phys. B 24 077103

[1] Sun S, Murray C B, Weller D, Folks L and Moser A 2000 Science 287 1989
[2] Zeng H, Li J, Liu J P, Wang Z L and Sun S 2002 Nature 420 395
[3] Akdogan N G, Hadjipanayis G C and Sellmyer D J 2009 IEEE Trans. Magn. 45 4417
[4] Chakka V M, Altuncevahir B, Jin Z Q, Li Y and Liu J P 2006 J. Appl. Phys. 99 08E912
[5] Zuo W L, Liu R M, Zheng X Q, Wu R R, Hu F X, Sun J R and Shen B G 2014 J. Appl. Phys. 115 17A728
[6] Rong C B, Nguyen V V and Liu J P 2010 J. Appl. Phys. 107 09A717
[7] Yu N J, Pan M X, Zhang P Y, Ge H L and Wu Q 2015 J. Magn. Magn. Mater. 378 107
[8] Wang W Q, Hu X J, Li X H, Huang G W, Zhang Y M and Zhang X Y 2014 J. Alloys Compd. 589 283
[9] Nie J W, Han X H, Du J, Xia W X, Zhang J, Guo Z H, Yan A R, Li W and Liu J P 2013 J. Magn. Magn. Mater. 347 116
[10] Shen Y, Huang M Q, Higgins A K, Liu S, Horwath J C and Chen C H 2010 J. Appl. Phys. 107 09A722
[11] Fernengel W, Lehnert A, Katter M, Rodewald W and Wall B 1996 J. Magn. Magn. Mater. 157/158 19
[12] Bernasconi J, Strässler S and Perkins R S 1975 AIP Conference Proceedings 24 761
[13] Kronmüller H, Durst K D and Martinek G 1987 J. Magn. Magn. Mater. 69 149
[14] Elbaz D, Givord D, Hirosawa S, Missell F P, Rossignol M F and VillasBoas V 1991 J. Appl. Phys. 69 5492
[15] Gao R W, Zhang D H, Zhang Y M, Li W, Wang Y S and Yu X J 2001 J. Magn. Magn. Mater. 224 125
[16] Panagiotopoulos I, Gjoka M and Niarchos D 2004 J. Magn. Magn. Mater. 279 389
[17] Bance S, Oezelt H, Schrefl T, Ciuta G, Dempsey N M, Givord D, Winklhofer M, Hrkac G, Zimanyi G, Gutfleisch O, Woodcock T G, Shoji T, Yano M, Kato A and Manabe A 2014 Appl. Phys. Lett. 104 182408
[18] Aharoni A 1997 J. Appl. Phys. 82 1281
[19] Thomson T and O'Grady K 1997 J. Phys. D: Appl. Phys. 30 1566
[20] Wang J B, Liu Q F, Xue D S and Li F S 2004 Chin. Phys. Lett. 21 945
[21] Speliotis D E and Lynch W 1991 J. Appl. Phys. 69 4496
[22] Mitchler P D, Dan Dahlberg E, Engle E and Roshko R M 1995 IEEE Trans. Magn. 31 2499
[23] Garca-Otero J, Porto M and Rivas J 2000 J. Appl. Phys. 87 7376
[24] Ohtori H, Lwano K, Mitsumata C, Yano M, Kato A, Shoji T, Manabe A and Ono K 2014 J. Appl. Phys. 115 17A717
[25] Liu J P, Liu Y and Sellmyer D J 1998 J. Appl. Phys. 83 6608
[26] Zuo W L, Zhang M, Niu E, Shao X P, Hu F X, Sun J R and Shen B G 2015 J. Magn. Magn. Mater. 390 15
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