An investigation of phase separation by magnetic force microscopy in La0.45Sr0.55MnO3-$\delta$($\delta$≈0.01)

doi:10.1088/1009-1963/11/3/317

Abstract

Abstract We have found phase separation in La_0.45Sr_0.55MnO_3-$\delta$ (LSMO) by means of electron spin resonance, magnetic force microscopy (MFM) and magnetic measurements. Ferromagnetic and antiferromagnetic phases can coexist at low temperatures, and ferromagnetic and paramagnetic phases coexist when the temperature lies between the Néel and Curie temperatures. The size and shape of the ferromagnetic phases (the minority phases) was first observed directly from MFM images. It is suggested that the phase separation in LSMO is not the charge segregation type, but an electroneutral type due perhaps to the nonuniform distribution of oxygen vacancies.

Keywords: ferromagnetic cluster phase separation

Received: 19 October 2001
Revised: 05 November 2001
Accepted manuscript online:

PACS:	75.30.Kz	(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
	68.37.Rt	(Magnetic force microscopy (MFM))
	76.30.-v	(Electron paramagnetic resonance and relaxation)
	75.50.Cc	(Other ferromagnetic metals and alloys)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10074081) and State Key Project of Fundamental Research of China (Grant No G1998061310).

Cite this article:

Li Run-Wei (李润伟), Zhang Zhen-Rong (张臻蓉), Li Qing-An (李庆安), Sun Ji-Rong (孙继荣), Wang Zhi-Hong (王志宏), Zhang Shao-Ying (张绍英), Cheng Zhao-Hua (成昭华), Han Bao-Shan (韩宝善), Shen Bao-Gen (沈保根) An investigation of phase separation by magnetic force microscopy in La_0.45Sr_0.55MnO_{_3-$\delta$($\delta$≈0.01)} 2002 Chinese Physics 11 288

[1]	Nanoscale structural investigation of Zn_1-xMg_xO alloy films on polar and nonpolar ZnO substrates with different Mg contents Xin Liang(梁信), Hua Zhou(周华), Hui-Qiong Wang(王惠琼), Lihua Zhang(张丽华), Kim Kisslinger, and Junyong Kang(康俊勇). Chin. Phys. B, 2021, 30(9): 096107.
[2]	Resistance fluctuations in superconducting K_xFe_2-ySe₂ single crystals studied by low-frequency noise spectroscopy Hai Zi(子海), Yuan Yao(姚湲), Ming-Chong He(何明冲), Di Ke(可迪), Hong-Xing Zhan(詹红星), Yu-Qing Zhao(赵宇清), Hai-Hu Wen(闻海虎), and Cong Ren(任聪). Chin. Phys. B, 2021, 30(4): 047402.
[3]	Phase separation and super diffusion of binary mixtures ofactive and passive particles Yan Wang(王艳), Zhuanglin Shen(谌庄琳), Yiqi Xia(夏益祺), Guoqiang Feng(冯国强), Wende Tian(田文得). Chin. Phys. B, 2020, 29(5): 053103.
[4]	Tail-structure regulated phase behaviors of a lipid bilayer Wenwen Li(李文文), Zhao Lin(林召), Bing Yuan(元冰), and Kai Yang(杨恺)\ccclink. Chin. Phys. B, 2020, 29(12): 128701.
[5]	Monitoring the formation of oil-water emulsions with a fast spatially resolved NMR spectroscopy method Meng-Ting You(游梦婷), Zhi-Liang Wei(韦芝良), Jian Yang(杨健), Xiao-Hong Cui(崔晓红), Zhong Chen(陈忠). Chin. Phys. B, 2018, 27(2): 028201.
[6]	Metastable phase separation and rapid solidification of undercooled Co₄₀Fe₄₀Cu₂₀ alloy Xiaojun Bai(白晓军), Yaocen Wang(汪姚岑), Chongde Cao(曹崇德). Chin. Phys. B, 2018, 27(11): 116402.
[7]	Nonvolatile control of transport and magnetic properties in magnetoelectric heterostructures by electric field Qian Li(李潜), Dun-Hui Wang(王敦辉), Qing-Qi Cao(曹庆琪), You-Wei Du(都有为). Chin. Phys. B, 2017, 26(9): 097502.
[8]	Electric current-induced giant electroresistance in La_0.36Pr_0.265Ca_0.375MnO₃ thin films Yinghui Sun(孙颖慧), Yonggang Zhao(赵永刚), Rongming Wang(王荣明). Chin. Phys. B, 2017, 26(4): 047103.
[9]	Combined effects of headgroup charge and tail unsaturation of lipids on lateral organization and diffusion of lipids in model biomembranes Xiao-Jie Chen(陈晓洁), Qing Liang(梁清). Chin. Phys. B, 2017, 26(4): 048701.
[10]	Spatial heterogeneity in liquid-liquid phase transition Yun-Rui Duan(段云瑞), Tao Li(李涛), Wei-Kang Wu(吴维康), Jie Li(李洁), Xu-Yan Zhou(周戌燕), Si-Da Liu(刘思达), Hui Li(李辉). Chin. Phys. B, 2017, 26(3): 036401.
[11]	Sodium chloride methanol solution spin-coating process for bulk-heterojunction polymer solar cells Tong-Fang Liu(刘统方), Yu-Feng Hu(胡煜峰), Zhen-Bo Deng(邓振波), Xiong Li(李熊), Li-Jie Zhu(朱丽杰), Yue Wang(王越), Long-Feng Lv(吕龙锋), Tie-Ning Wang(王铁宁), Zhi-Dong Lou(娄志东), Yan-Bing Hou(侯延冰), Feng Teng(滕枫). Chin. Phys. B, 2016, 25(8): 088801.
[12]	Phase equilibrium of Cd_1-xZn_xS alloys studied by first-principles calculations and Monte Carlo simulations Fu-Zhen Zhang(张付珍), Hong-Tao Xue(薛红涛), Fu-Ling Tang(汤富领), Xiao-Kang Li(李小康), Wen-Jiang Lu(路文江), Yu-Dong Feng(冯煜东). Chin. Phys. B, 2016, 25(1): 013103.
[13]	Curvature-induced lipid segregation Zheng Bin (郑斌), Meng Qing-Tian (孟庆田), Robin L. B. Selinger, Jonathan V. Selinger, Ye Fang-Fu (叶方富). Chin. Phys. B, 2015, 24(6): 068701.
[14]	Anisotropic transport properties of charge-ordered La_5/8-yPr_yCa_3/8MnO₃ (y=0.43) film Liu Yuan-Bo (刘渊博), Wang Shuan-Hu (王拴虎), Sun Ji-Rong (孙继荣), Shen Bao-Gen (沈保根). Chin. Phys. B, 2015, 24(5): 057304.
[15]	Dynamic resistive switching in a three-terminal device based on phase separated manganites Wang Zhi-Qiang (王志强), Yan Zhi-Bo (颜志波), Qin Ming-Hui (秦明辉), Gao Xing-Sen (高兴森), Liu Jun-Ming (刘俊明). Chin. Phys. B, 2015, 24(3): 037101.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

An investigation of phase separation by magnetic force microscopy in La0.45Sr0.55MnO3-$\delta$($\delta$≈0.01)

Cite this article:

Online attention

An investigation of phase separation by magnetic force microscopy in La_0.45Sr_0.55MnO_{_3-$\delta$($\delta$≈0.01)}