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Effects of Fe doping on ac susceptibility of Pr0.75Na0.25MnO3 |
| Li Yu(李玉)a)b), Cheng Qian(程倩)c), Qi Da-Wei(戚大伟)a)b)†, Wang Ji-Liang(王继亮)a), Zhang Jing(张晶)a), Wang Shuang(王爽)a), and Guan Jing(关晶)a) |
| a College of Science, Northeast Forestry University, Harbin 150040, China; b Post-doctoral Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin 150040, China; c Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China |
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Abstract Ac susceptibility at low temperatures of Pr$_{0.75}$Na$_{0.25}$Mn$_{1-x}$Fe$_{x}$O$_{3}$ ($0 \le x \le 0.30$) is investigated. The peak value of the real component of ac susceptibility $\chi '$ at the freezing temperature $T_{\rm f }$ is suppressed with the increasing frequency. The peak value of $\chi '$ shows a linear relation between $T_{\rm f}$ and the logarithm of the frequency $\omega$. The normalized slope $P = \Delta T_{\rm f }/T_{\rm f}\Delta {\rm lg}\omega $, which is much lower than canonical insulating spin glass systems in which $0.06 \le P \le 0.08$. The peak value of the imaginary component of the ac susceptibility $\chi''$ at $T_{\rm f}$ for the $x = 0$, 0.02, 0.30 samples increases with increasing frequency, suggesting a cluster glass ground state with a coexistence of charge-ordered phase and correlated ferromagnetic clusters in spin glass matrix. The peak value of $\chi''$ at $ T_{\rm f}$ for the $x = 0.10$ sample decreases with increasing frequency, suggesting a phase separation ground state. The peak value of $\chi''$ at $ T_{\rm f}$ for the $x = 0.05$ sample decreases with increasing frequency for $\omega \le 52$ Hz and increases subsequently till 701~Hz, and then decreases with further increasing frequency for $\omega \ge 1501$ Hz. This complex behaviour is ascribed to the competition between the effects of large and little ferromagnetic clusters in the sample. The ground state of $x = 0.05$ sample is a transition state from cluster glass to phase separation.
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Received: 29 August 2011
Revised: 02 September 2011
Accepted manuscript online:
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PACS:
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75.50.Lk
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(Spin glasses and other random magnets)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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75.30.Kz
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(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
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| Fund: Project supported by the Fundamental Research Funds for the Central Universities of China (Grant No. DL09BB31), the Open
Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, China
(Grant No. LZUMMM2010004),the Fundamental Research Funds for the Central Universities of China (Grant No. DL09BB36),
the National Natural Science Foundation of China (Grant No. 31170518), and the Research Fund of Heilongjiang Provincial
Education Department (Grant No. 12513040). |
Cite this article:
Li Yu(李玉), Cheng Qian(程倩), Qi Da-Wei(戚大伟), Wang Ji-Liang(王继亮), Zhang Jing(张晶), Wang Shuang(王爽), and Guan Jing(关晶) Effects of Fe doping on ac susceptibility of Pr0.75Na0.25MnO3 2011 Chin. Phys. B 20 117502
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| [1] |
Schiffer P, Ramirez A P, Bao W and Cheong S W 1995 Phys. Rev. Lett. 75 3336
|
| [2] |
Ramirez A P, Schiffer P, Cheong S W, Bao W, Palstra T T M, Gammel P L, Bishop D J and Zegarski B 1996 Phys. Rev. Lett. 76 3188
|
| [3] |
Xie Y W, Wang D J, Shen B G and Sun J R 2007 Chin . Phys. B 16 3120
|
| [4] |
Zhang C H, Xu Z, Gao J J and Yao X 2011 Chin. Phys. B 20 027701
|
| [5] |
Uehara M, Mori S, Chen C H and Cheong S W 1999 Nature 399 560
|
| [6] |
Hu N, Liu Y, Cheng L, Shi J and Xiong R 2011 Acta Phys. Sin 60 017503 (in Chinese)
|
| [7] |
Wang Q 2010 Acta Phys. Sin. 59 6569 (in Chinese)
|
| [8] |
Damay F, Maignan A, Martin C and Raveau B. 1997 J. Appl. Phys. 82 1485
|
| [9] |
Damay F, Martin C, Maignan A and Raveau B 1997 J. Appl. Phys. 82 6181
|
| [10] |
Xu J, Matsui Y, Kimura T and Tokura Y 2001 Physica C 357-360 401
|
| [11] |
Deac I G, Mitchell J F and Schiffer P 2001 Phys. Rev. B 63 172408
|
| [12] |
Li Y, Miao J P, Sui Y and Lü Z, Qian Z N and Su W H 2006 J. Magn. Magn. Mater. 305 247
|
| [13] |
Li Y, Miao J P, Yu S and Cheng Q, Zhang W, Wang X J and Su W H 2008 J. Alloys. Comp. 458 11
|
| [14] |
Satoh T, Kikuchi Y, Miyano K, Pollert E, Hejtmánek J and Jirák Z. 2002 Phys. Rev. B 65 125103
|
| [15] |
Hejtmánek J, Jirák Z, Sebek J, Strejc A and Hervieu M 2001 J. Appl. Phys. 89 7413
|
| [16] |
Mydosh J A 1993 Spin Glasses: An Experimental Introduction (London: Taylor & Francis-publishing) p. 42
|
| [17] |
Chikuzami S 1997 Physics of Ferromagnetism (Oxford: Clarendon-publishing) p. 28
|
| [18] |
Williams G, 1991 Magnetic Susceptibility of Superconductors and Other Spin Systems (New York : Plenum-publishing, Inc.) pp. 475-477, 503-505
|
| [19] |
Dormann J L, Cherkaoui R, Spinu L, Nogues M, Lucari F, Dórazio F, Fiorani D, Garcia A, Tronc E and Jolivet J P 1998 J. Magn. Magn. Mater. 187 139
|
| [20] |
Mamiya H, Nakatani I and Furubayashi T 1998 Phys. Rev. Lett. 80 177
|
| [21] |
De Toro J A, López de la Torre M A, Riveiro J M, Saezpuche R, Gomez-Herrero A and Otero-Diaz L C 1999 Phys. Rev. B 60 12918
|
| [22] |
Fisher L M, Kalinov A V and Voloshin I F 2003 J. Magn. Magn. Mater. 258-259 306
|
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