Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 23, Pages 20136-20141Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b04057
Keywords
electronic multiple ordering; high magnetic field; magnetic force microscopy; antiferromagnetic phase; manganite; phase separation
Funding
- National Key Research and Development Program of China [2017YFA0402903, 2017YFA0303603, 2016YFA0401003, 2016YFA0401803]
- National Natural Science Foundation of China (NSFC) [51627901, 11574316, 21505139, 11474263, U1432251, 11374278, U1632160, U1532155, 11704384]
- Key Research Program of Frontier Sciences, CAS [QYZDB-SSW-SLH011]
- Instrument Developing Project of the Chinese Academy of Sciences [YZ201423]
- Hefei Science Center CAS [2016HSCIU006]
- Chinese Academy of Science Scientific Research Equipment [YZ201628]
- One Thousand Youth Talents Program of China
- Japan Science and Technology (JST), PRESTO [JPMJPR16R5]
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Constituent atoms and electrons determine matter properties together, and they can form long-range ordering respectively. Distinguishing and isolating the electronic ordering out from the lattice crystal is a crucial issue in contemporary materials science. However, the intrinsic structure of a long-range electronic ordering is difficult to observe because it can be easily affected by many external factors. Here, we present the observation of electronic multiple ordering (EMO) and its dynamics at the micrometer scale in a manganite thin film. The strong internal couplings among multiple electronic degrees of freedom in the EMO make its morphology robust against external factors and visible via well-defined boundaries along specific axes and cleavage planes, which behave like a multiple-ordered electronic crystal. A strong magnetic field up to 17.6 T is needed to completely melt such EMO at 7 K, and the corresponding formation, motion, and annihilation dynamics are imaged utilizing a home-built high-field magnetic force microscope. The EMO is parasitic within the lattice crystal house, but its dynamics follows its own rules of electronic correlation, therefore becoming distinguishable and isolatable as the electronic ordering. Our work provides a microscopic foundation for the understanding and control of the electronic ordering and the designs of the corresponding devices.
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