Percolative Nano-Sized Phase Separation in Mix-Valent Manganites

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	Percolative Nano-Sized Phase Separation in Mix-Valent Manganites
	Y. Wang; Y. Sui; X. J. Wang; Y. T. Su; W. H. Su; X. Y. Liu; H. J. Fan
	2010
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	114 期号:3 页码:1491-1497
摘要	Combining transport and magnetic properties measurements, we find that ferromagnetic clusters are embedded in an antiferromagnetic matrix in the mix-valent R(1-x)Ca(x)MnO(3) (R denotes rare-earth element, x = 0.88-1) manganites at low temperature, namely, magnetic phase separation phenomenon. In contrast to the hole-doped manganites, ferromagnetic clusters in the electron-doped manganites are likely ellipsoidal-type rather than stripe-type, evidenced by modeling the low temperature electrical transport behavior. Percolative conduction transport between the ferromagnetic clusters takes place in the case of phase separation state. As the R ion content exceeds a certain level, colossal magnetoresistance is observed in a narrow range in this system. The rotation of ferromagnetic domains under magnetic field may underlie the magnetoresistance effect in the phase separation state of these electron-doped manganite systems.
部门归属	[wang, yang; sui, yu; wang, xianjie; su, yantao; su, wenhui] harbin inst technol, dept phys, ccmst, harbin 150001, peoples r china. [sui, yu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china. [liu, xiaoyang] jilin univ, coll chem, state key lab inorgan synth & preparat chem, changchun 130012, peoples r china. [wang, yang; fan, hongjin] nanyang technol univ, div phys & appl phys, sch phys & math sci, singapore 637371, singapore.;sui, y (reprint author), harbin inst technol, dept phys, ccmst, harbin 150001, peoples r china;suiyu@hit.edu.cn
关键词	Rare-earth Manganates Doped Manganites Colossal Magnetoresistance Magnetic-field Electrical-transport Perovskite Camno3 La1-xcaxmno3 Coexistence Collapse
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WOS记录号	WOS:000273672500014
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31544
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wang,Y. Sui,X. J. Wang,et al. Percolative Nano-Sized Phase Separation in Mix-Valent Manganites[J]. Journal of Physical Chemistry C,2010,114(3):1491-1497.
APA	Y. Wang.,Y. Sui.,X. J. Wang.,Y. T. Su.,W. H. Su.,...&H. J. Fan.(2010).Percolative Nano-Sized Phase Separation in Mix-Valent Manganites.Journal of Physical Chemistry C,114(3),1491-1497.
MLA	Y. Wang,et al."Percolative Nano-Sized Phase Separation in Mix-Valent Manganites".Journal of Physical Chemistry C 114.3(2010):1491-1497.