| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Enhanced Ferromagnetism and Microwave Dielectric Properties of Bi0.95Y0.05FeO3 Nanocrystals |
| HOU Zhi-Ling1**, ZHOU Hai-Feng1, YUAN Jie2, KANG Yu-Qing2, YANG Hui-Jing2, JIN Hai-Bo2, CAO Mao-Sheng2**
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1School of Science, Beijing University of Chemical Technology, Beijing 100029
2School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081 |
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| Cite this article: |
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HOU Zhi-Ling, ZHOU Hai-Feng, YUAN Jie et al 2011 Chin. Phys. Lett. 28 037702 |
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Abstract Bi0.95Y0.05FeO3 nanocrystals are synthesized by a hydrothermal method, and are crystallized in a rhombohedrally distorted perovskite BiFeO3 structure in the R3c space, with compressive lattice distortion induced by the Y substitution at Bi sites from XRD study. Compared with BiFeO3 gained under similar conditions, the magnetic properties are greatly enhanced, with saturate magnetization of 2.3 emu/g at room temperature. Microwave dielectric properties of Bi0.95Y0.05FeO3 nanocrystals are investigated in the range of 2–18 GHz. The Y substitution results in the increase of permeability and decrease of permittivity, which are attributed to the enhanced spin relaxation of domain wall motion and the weakened electron-relaxation caused by decreasing Fe2+, respectively. The changes for microwave dielectric response could lead to the excellent microwave absorption due to the improvement of the impedance match between BiFeO3 and air.
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| Keywords:
77.84.-s
81.07.-b
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Received: 07 January 2011
Published: 28 February 2011
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| PACS: |
77.84.-s
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(Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)
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81.07.-b
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(Nanoscale materials and structures: fabrication and characterization)
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[1] Wang K F, Liu J M and Ren Z F 2009 Adv. Phys. 58 321
[2] Tokunaga Y, Furukawa N, Sakai H, Taguchi Y, Arima T H and Tokura Y 2009 Nature Mater. 8 558
[3] Liu J M, Chan-Wong L W and Choy C L 2009 Chin. Phys. Lett. 26 087501
[4] Feng H J and Liu F M 2008 Chin. Phys. Lett. 25 671
[5] Huang N X, Zhao L F, Xu J Y, Chen J L and Zhao Y 2010 Chin. Phys. Lett. 27 027704
[6] Wang J, Li M Y, Liu X L, Pei L, Liu J, Yu B F and Zhao X Z 2009 Chin. Phys. Lett. 26 117301
[7] Rovillain P, de Sousa R, Gallais Y, Sacuto A, Measson M A, Colson D, Forget A, Bibes M, Barthelemy A and Cazayous M 2010 Nature Mater. 9 975
[8] Fischer P, Polomska M, Sosnowska I and Szymanski M 1980 J. Phys. C: Solid State Physics 13 1931
[9] Zhang Q, Kim C H, Jang Y H, Hwang H J and Cho J H 2010 Appl. Phys. Lett. 96 152901
[10] Xu Q Y, Zai H F, Wu D, Qiu T and Xu M X 2009 Appl. Phys. Lett. 95 112510
[11] Troyanchuk I O, Chobot A N, Mantytskaya O S and Tereshko N V 2010 Inorg. Mater. 46 424 1
[12] Hojamberdiev M, Xu Y, Wang F, Liu W and Wang J 2009 Inorg. Mater. 45 1183
[13] Qian F Z, Jiang J S, Guo S Z, Jiang D M and Zhang W G 2009 J. Appl. Phys. 106 084312
[14] Uniyal P and Yadav K L 2009 J. Appl. Phys. 105 07D914
[15] Zhang Y J, Zhang H G, Yin J H, Zhang H W, Chen J L, Wang W Q and Wu G H 2010 J. Magn. Magn. Mater. 322 2251
[16] Li J B, Rao G H, Xiao Y, Liang J K, Luo J, Liu G Y and Chen J R 2010 Acta Materialia 58 3701
[17] Lin Y H, Jiang Q H, Wang Y, Nan C W, Chen L and Yu J 2007 Appl. Phys. Lett. 90 172507
[18] Liu J, Fang L, Zheng F G, Ju S and Shen M R 2009 Appl. Phys. Lett. 95 022511
[19] Li J B, Rao G H, Xiao Y G, Luo J, Liu G Y, Chen J R and Liang J K 2010 Chin. Phys. B 19 107505
[20] Du Y, Cheng Z X, Shahbazi M, Collings E W, Dou S X and Wang X L 2010 J. Alloys Compd. 490 637
[21] Thakuria P and Joy P A 2010 Appl. Phys. Lett. 97 162504
[22] Song W L, Cao M S, Hou Z L, Yuan J and Fang X Y 2009 Scripta Mater. 61 201
[23] Zhang X Y, Song Q, Xu F and Ong C K 2009 Appl. Phys. Lett. 94 022907
Ahad F B A, Hung D S, Yao Y D, Lee S F, Tu C S, Wang T H, Chen Y Y and Fu Y P 2009 J. Appl. Phys. 105 07D912
[24] Xu J H, Ke H, Jia D C, Wang W and Zhou Y 2009 Philos. Mag. Lett. 89 701
[25] Kang Y Q, Cao M S, Yuan J and Shi X L 2009 Mater. Lett. 63 1344
[26] Wen F S, Wang N and Zhang F 2010 Solid State Comm. 150 1888
[27] Mazumder R, Devi P S, Bhattacharya D, Choudhury P, Sen A and Raja M 2007 Appl. Phys. Lett. 91 062510
[28] Hunpratub S, Thongbai P, Yamwong T, Yimnirun R and Maensiri S 2009 Appl. Phys. Lett. 94 062904
[29] Lou Y H, Song G L, Chang F G and Wang Z K 2010 Chin. Phys. B 19 077702
[30] Hou Z L, Cao M S, Yuan J and Song W L 2010 Chin. Phys. B 19 017702
[31] Cao M S, Qin R R, Qiu C J and Zhu J 2003 Mater. Design 24 391
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