Fe3O4 Segregation and Transport Properties of La0.67Ca0.33MnO3

Chin. Phys. Lett.

2006, Vol. 23

Issue (8): 2194-2197 DOI:

Original Articles

Fe₃O₄ Segregation and Transport Properties of La_0.67Ca_0.33MnO₃

ZHOU Qian-Xue¹;DAI Ming-Xing¹;WANG Ren-Hui¹;FENG Xin-Nan²;WANG Yang²;XIA Zheng-Cai²

¹Department of Physics, Wuhan University, Wuhan 430072 ²Department of Physics, Huazhong University of Science and Technology, Wuhan 430074

Cite this article:

ZHOU Qian-Xue, DAI Ming-Xing, WANG Ren-Hui et al 2006 Chin. Phys. Lett. 23 2194-2197

Download: PDF(1014KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract Effect of Fe₃O₄ segregation at grain boundaries on the electrical transport and magnetic properties of La_0.67Ca_0.33MnO₃ is investigated. The experimental results show that the Fe₃O₄ segregation not only shifts the paramagnetic--ferromagnetic transition temperature of La_0.67Ca_0.33MnO₃ to a lower temperature region but also induces a new transition in a lower temperature region. Meanwhile, the transition processes observed in both the resistivity and magnetization curves are obviously widened. Compared to pure La_0.67Ca_0.33MnO₃, we assume that the Fe₃O₄ segregation level at the grain boundaries can modify the electrical transport and magnetic properties of
La_0.67Ca_0.33MnO₃.

Keywords: 71.30.+h 75.30.Kz 75.30.Vn

Published: 01 August 2006

PACS:	71.30.+h	(Metal-insulator transitions and other electronic transitions)
	75.30.Kz	(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
	75.30.Vn

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I8/02194

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	ZHOU Qian-Xue
	DAI Ming-Xing
	WANG Ren-Hui
	FENG Xin-Nan
	WANG Yang
	XIA Zheng-Cai

Related articles from Frontiers Journals

[1]	AO Bing-Yun, AI Juan-Juan, GAO Tao, WANG Xiao-Lin, SHI Peng, CHEN Pi-Heng, YE Xiao-Qiu. Metal-Insulator Transition of Plutonium Hydrides: DFT+U Calculations in the FPLAPW Basis[J]. Chin. Phys. Lett., 2012, 29(1): 2194-2197
[2]	PAN Li-Jun, JIA Yu, , SUN Qiang, HU Xing . Electronic Properties of Boron Nanotubes under Uniaxial Strain: a DFT study**[J]. Chin. Phys. Lett., 2011, 28(8): 2194-2197
[3]	WANG Hong-Tao, ZHOU Tong, HONG Bo, TAO Qian, XU Zhu-An . Magnetic Properties of Orthorhombic Perovskite Ho_1−xLa_xMnO₃**[J]. Chin. Phys. Lett., 2011, 28(2): 2194-2197
[4]	ZHAO Wei, DING Jian-Wen . Reproduced Giant Localization Length of Two-Side Surface Disordered Nanowires with Long-Range Correlation**[J]. Chin. Phys. Lett., 2011, 28(10): 2194-2197
[5]	FU Di, XIE Dan, ZHANG Chen-Hui, ZHANG Di, NIU Jie-Bin, QIAN He, LIU Li-Tian,. Preparation and Characteristics of Nanoscale Diamond-Like Carbon Films for Resistive Memory Applications[J]. Chin. Phys. Lett., 2010, 27(9): 2194-2197
[6]	WANG Xue-Li, WANG Chuan-Hui, TIAN Zhao-Ming, YIN Shi-Yan, YUAN Song-Liu . First-Principles Based Model of Spin-state Phase Transition[J]. Chin. Phys. Lett., 2010, 27(10): 2194-2197
[7]	LIU Yong-Sheng, ZHONG Yun-Bo, ZHANG Jin-Cang, GU Min-An, YANG Zheng-Long, REN Zhong-Ming. Crystalline and Magnetic Enhancement of Nanocrystalline MnZn Ferrites Fabricated under a High Magnetic Field[J]. Chin. Phys. Lett., 2009, 26(8): 2194-2197
[8]	YUE Song, DU Juan, ZHANG Yuan, ZHANG Yu-Heng. Metal-Insulator Transition in CuIr₂(S_1-xTe_x)₄[J]. Chin. Phys. Lett., 2009, 26(11): 2194-2197
[9]	MYDEEN Kamal, YU Yong, JIN Chang-Qing. Development of Simple Dip-Stick-Type Uniaxial Stress Actuator for Alternating-Current Susceptibility Measurements[J]. Chin. Phys. Lett., 2008, 25(9): 2194-2197
[10]	ZHENG Ping, LUO Jian-Lin, WU Dong, SU Shao-Kui, LIU Guang-Tong, MAYong-Chang, CHEN Zhao-Jia. Anisotropic Applied Field Dependency of Two Successive Magnetic Transitions in LiCu₂O₂[J]. Chin. Phys. Lett., 2008, 25(9): 2194-2197
[11]	LIU Li-Feng, KANG Jin-Feng, WANG Yi, ZHANG Xing, HAN Ru-Qi. Vacuum Annealing Induced Room-Temperature Ferromagnetism in Co_0.1Ti_0.9O_2-δ Films Prepared by Sol-Gel Method[J]. Chin. Phys. Lett., 2008, 25(7): 2194-2197
[12]	SUN Bing, LIU Li-Feng, HAN De-Dong, WANG Yi, LIU Xiao-Yan, HAN Ru-Qi, KANG Jin-Feng. Improved Resistive Switching Characteristics of Ag-Doped ZrO₂ Films Fabricated by Sol-Gel Process[J]. Chin. Phys. Lett., 2008, 25(6): 2194-2197
[13]	WANG Qing-Bo, XU Xiang-Fan, TAO Qian, WANG Hong-Tao, XU Zhu-An. Metal--Insulator Transition in Ca-Doped Sr_14-xCa_xCu₂₄O₄₁ Systems Probed by Thermopower Measurements[J]. Chin. Phys. Lett., 2008, 25(5): 2194-2197
[14]	TU Tao, ZHAO Yong-Jie, HAO Xiao-Jie, WANG Cheng-You, GUO Guang-Can, GUO Guo-Ping. Localization Exponent for the Second Landau Level in the Quantum Hall Effect[J]. Chin. Phys. Lett., 2008, 25(3): 2194-2197
[15]	M. Y. Nadee, Nadeem Iqbal, M. F. Wasiq, A. U. Khosa. High Field Electrical Conduction in Pre-Formed Al--ZnS--Al Thin Films in Metal--Insulator--Metal Devices[J]. Chin. Phys. Lett., 2007, 24(7): 2194-2197

Viewed

Full text

Abstract