| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Phase-Transition and Magnetic Moment of the Gd3+ Ion in the Gd2Fe17 Compound |
| HAO Yan-Ming1, FU Bin2, ZHOU Yan3, ZHAO Miao4 |
| 1Department of Physics, College of Science, Tianjin University of Science and Technology, Tianjin 3002222School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 1000833School of Science, Tianjin University of Commerce, Tianjin 3001344National Center for Nanoscience and Technology (NCNST), Beijing 100190 |
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| Cite this article: |
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HAO Yan-Ming, FU Bin, ZHOU Yan et al 2009 Chin. Phys. Lett. 26 077501 |
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Abstract The structure and magnetic phase transitions of the Gd2Fe17 compound are investigated by using a differential thermal/thermogravimetric analyzer, x-ray diffraction, and magnetization measurements. The result shows that there are two phase structures for the Gd2Fe17 compound: the hexagonal Th2Ni17-type structure at high temperatures (above 1243°C), and the rhombohedral Th2Zn17-type structure, respectively. A method to measure the magnetic moments of the Gd-sublattice and the Fe-sublattice in the Gd2Fe17 compound is presented. The moments of the Gd-sublattice and the Fe-sublattice in the Gd2Fe17 compound from 77 to 500K are measured in this way with a vibrating sample magnetometer. A detailed discussion is presented.
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| Keywords:
75.30.Et
75.60.Ej
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Received: 10 April 2009
Published: 02 July 2009
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| PACS: |
75.30.Et
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(Exchange and superexchange interactions)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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[1] Buschow K H J 1991 Rep. Prog. Phys. 54 1123
[2] Coey J M D and Sun H 1990 J. Magn. Magn. Mater. 87 L251
[3] Bessais L, Dorolti E and Mariadassou C D 2005 J.Appl. Phys. 97 013902
[4] Hao Y M, Zhang Y Y, Jiang XY, Gao C J and Wu Y Z 2009 Chin. Phys. Lett. 269 026501
[5] Hao Y M, He XH, An LQ and Fu B 2008 Chin. Phys.Lett. 25 66
[6]Hao Y M, Zhao M and Gao Y 2003 Acta Phys. Sin. 52 3209 (in Chinese)
[7] HaoY M, Zhou Y and Zhao M 2005 J. Appl. Phys. 97 116102
[8]Ye V Shcher B, Ivanova G V, Mushnikov N V and Gervasieva IV 2000 J. Alloys Compd. 308 15
[9] JacobsT H, BuschowK H J, Zhou G F, Liu J P, Li X and deboer F R 1992 J. Magn. Magn. Mater. 104--107 1275
[10] Coehoorn C and Daalderop G H O 1992 J. Magn. Magn.Mater. 104--107 1081
[11] Uebele P, Hummler K and F\"{ahnle M 1996 Phys.Rev. B 53 3296
[12] Hummler K and F\"{ahnle M 1996 Phys. Rev. B 53 3272
[13] CoeyJ M D andLawer J F 1991 J. Appl. Phys. 693007
[14] Kurima K, Takahiro A and Hiroaki K 2006 J. AlloysCompd. 408 1404 |
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