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Direct experimental evidence of physical origin of electronic phase separation in manganites

文献类型：期刊论文

作者Miao, Tian4,5; Deng, Lina4,5; Yang, Wenting4,5; Ni, Jinyang4,5; Zheng, Changlin4,5; Etheridge, Joanne6; Wang, Shasha7; Liu, Hao4,5; Lin, Hanxuan4,5; Yu, Yang4,5
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2020-03-31
卷号117
ISSN号0027-8424
关键词electronic phase separation manganites tricolor superlattice chemical ordering
DOI10.1073/pnas.1920502117
通讯作者Dagotto, Elbio(edagotto@utk.edu) ; Yin, Lifeng(lifengyin@fudan.edu.cn) ; Shen, Jian(shenj5494@fudan.edu.cn)
英文摘要Electronic phase separation in complex oxides is the inhomogeneous spatial distribution of electronic phases, involving length scales much larger than those of structural defects or nonuniform distribution of chemical dopants. While experimental efforts focused on phase separation and established its correlation with nonlinear responses under external stimuli, it remains controversial whether phase separation requires quenched disorder for its realization. Early theory predicted that if perfectly "clean" samples could be grown, both phase separation and nonlinearities would be replaced by a bicritical-like phase diagram. Here, using a layer-by-layer superlattice growth technique we fabricate a fully chemically ordered "tricolor" manganite superlattice, and compare its properties with those of isovalent alloyed manganite films. Remarkably, the fully ordered manganite does not exhibit phase separation, while its presence is pronounced in the alloy. This suggests that chemical-dopingi-nduced disorder is crucial to stabilize the potentially useful nonlinear responses of manganites, as theory predicted.
WOS关键词INSULATOR-TRANSITION ; MAGNETORESISTANCE
资助项目National Key Research and Development Program of China[2016YFA0300702] ; National Basic Research Program of China (973 Program)[2014CB921104] ; National Natural Science Foundation of China[11991060] ; Shanghai Municipal Natural Science Foundation[18JC1411400] ; Shanghai Municipal Natural Science Foundation[18ZR1403200] ; Shanghai Municipal Natural Science Foundation[17ZR1442400] ; Shanghai Municipal Natural Science Foundation[17ZR1442600] ; Program of Shanghai Academic Research Leader[18XD1400600] ; China Postdoctoral Science Foundation[2017M610221] ; China Postdoctoral Science Foundation[KLH1512080] ; China Postdoctoral Science Foundation[KLH1512089] ; China Postdoctoral Science Foundation[2016M601488] ; China Postdoctoral Science Foundation[2017T100265] ; Shanghai Sailing Program[17YF1429000] ; National Postdoctoral Program for Innovative Talents ; US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division ; Australian Research Council's Linkage Infrastructure, Equipment and Facilities Grant[LE0454166]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000523188100025
资助机构National Key Research and Development Program of China ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; Shanghai Municipal Natural Science Foundation ; Program of Shanghai Academic Research Leader ; China Postdoctoral Science Foundation ; Shanghai Sailing Program ; National Postdoctoral Program for Innovative Talents ; US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division ; Australian Research Council's Linkage Infrastructure, Equipment and Facilities Grant
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103553]  
专题中国科学院合肥物质科学研究院
通讯作者Dagotto, Elbio; Yin, Lifeng; Shen, Jian
作者单位1.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
2.Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA
3.Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China
4.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
5.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
6.Monash Univ, Monash Ctr Electron Microscopy, Clayton, Vic 3800, Australia
7.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
8.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
9.Nanjing Univ, Dept Phys, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
10.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
推荐引用方式
GB/T 7714		 Miao, Tian,Deng, Lina,Yang, Wenting,et al. Direct experimental evidence of physical origin of electronic phase separation in manganites[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117.
APA Miao, Tian.,Deng, Lina.,Yang, Wenting.,Ni, Jinyang.,Zheng, Changlin.,...&Shen, Jian.(2020).Direct experimental evidence of physical origin of electronic phase separation in manganites.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117.
MLA Miao, Tian,et al."Direct experimental evidence of physical origin of electronic phase separation in manganites".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117(2020).

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来源：合肥物质科学研究院

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