Direct experimental evidence of physical origin of electronic phase separation in manganites
文献类型：期刊论文
| 作者 | Miao, T; Deng, LN; Yang, WT; Ni, JY; Zheng, CL; Etheridge, J; Wang, SS; Liu, H; Lin, HX; Yu, Y |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2020 |
| 卷号 | 117期号:13页码:7090-7094 |
| 关键词 | INSULATOR-TRANSITION MAGNETORESISTANCE |
| ISSN号 | 0027-8424 |
| DOI | 10.1073/pnas.1920502117 |
| 文献子类 | 期刊论文 |
| 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. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32793]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA 2.Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China 3.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, 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, T,Deng, LN,Yang, WT,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(13):7090-7094. |
| APA | Miao, T.,Deng, LN.,Yang, WT.,Ni, JY.,Zheng, CL.,...&Shen, J.(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(13),7090-7094. |
| MLA | Miao, T,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 117.13(2020):7090-7094. |
入库方式： OAI收割
来源：上海应用物理研究所
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