Imaging the formation and surface phase separation of the CE phase

Abstract The CE phase is an extraordinary phase exhibiting the simultaneous spin, charge, and orbital ordering due to strong electron correlation. It is an ideal platform to investigate the role of the multiple orderings in the phase transitions and discover emergent properties. Here, we use a cryog...

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Autores principales:	Haibiao Zhou, Qiyuan Feng, Yubin Hou, Masao Nakamura, Yoshinori Tokura, Masashi Kawasaki, Zhigao Sheng, Qingyou Lu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/22c24ad68ba14a8bb92b117bfa931948
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spelling	oai:doaj.org-article:22c24ad68ba14a8bb92b117bfa9319482021-12-02T18:25:00ZImaging the formation and surface phase separation of the CE phase10.1038/s41535-021-00353-22397-4648https://doaj.org/article/22c24ad68ba14a8bb92b117bfa9319482021-06-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00353-2https://doaj.org/toc/2397-4648Abstract The CE phase is an extraordinary phase exhibiting the simultaneous spin, charge, and orbital ordering due to strong electron correlation. It is an ideal platform to investigate the role of the multiple orderings in the phase transitions and discover emergent properties. Here, we use a cryogenic high-field magnetic force microscope to image the phase transitions and properties of the CE phase in a Pr0.5Ca0.5MnO3 thin film. In a high magnetic field, we observed a clear suppression of magnetic susceptibility at the charge-ordering insulator transition temperature (T COI), whereas, at the Néel temperature (T N), no significant change is observed. This observation favors the scenario of strong antiferromagnetic correlation developed below T COI but raises questions about the Zener polaron paramagnetic phase picture. Besides, we discoverd a phase-separated surface state in the CE phase regime. Ferromagnetic phase domains residing at the surface already exist in zero magnetic field and show ultra-high magnetic anisotropy. Our results provide microscopic insights into the unconventional spin- and charge-ordering transitions and revealed essential attributes of the CE phase, highlighting unusual behaviors when multiple electronic orderings are involved.Haibiao ZhouQiyuan FengYubin HouMasao NakamuraYoshinori TokuraMasashi KawasakiZhigao ShengQingyou LuNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Haibiao Zhou Qiyuan Feng Yubin Hou Masao Nakamura Yoshinori Tokura Masashi Kawasaki Zhigao Sheng Qingyou Lu Imaging the formation and surface phase separation of the CE phase
description	Abstract The CE phase is an extraordinary phase exhibiting the simultaneous spin, charge, and orbital ordering due to strong electron correlation. It is an ideal platform to investigate the role of the multiple orderings in the phase transitions and discover emergent properties. Here, we use a cryogenic high-field magnetic force microscope to image the phase transitions and properties of the CE phase in a Pr0.5Ca0.5MnO3 thin film. In a high magnetic field, we observed a clear suppression of magnetic susceptibility at the charge-ordering insulator transition temperature (T COI), whereas, at the Néel temperature (T N), no significant change is observed. This observation favors the scenario of strong antiferromagnetic correlation developed below T COI but raises questions about the Zener polaron paramagnetic phase picture. Besides, we discoverd a phase-separated surface state in the CE phase regime. Ferromagnetic phase domains residing at the surface already exist in zero magnetic field and show ultra-high magnetic anisotropy. Our results provide microscopic insights into the unconventional spin- and charge-ordering transitions and revealed essential attributes of the CE phase, highlighting unusual behaviors when multiple electronic orderings are involved.
format	article
author	Haibiao Zhou Qiyuan Feng Yubin Hou Masao Nakamura Yoshinori Tokura Masashi Kawasaki Zhigao Sheng Qingyou Lu
author_facet	Haibiao Zhou Qiyuan Feng Yubin Hou Masao Nakamura Yoshinori Tokura Masashi Kawasaki Zhigao Sheng Qingyou Lu
author_sort	Haibiao Zhou
title	Imaging the formation and surface phase separation of the CE phase
title_short	Imaging the formation and surface phase separation of the CE phase
title_full	Imaging the formation and surface phase separation of the CE phase
title_fullStr	Imaging the formation and surface phase separation of the CE phase
title_full_unstemmed	Imaging the formation and surface phase separation of the CE phase
title_sort	imaging the formation and surface phase separation of the ce phase
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/22c24ad68ba14a8bb92b117bfa931948
work_keys_str_mv	AT haibiaozhou imagingtheformationandsurfacephaseseparationofthecephase AT qiyuanfeng imagingtheformationandsurfacephaseseparationofthecephase AT yubinhou imagingtheformationandsurfacephaseseparationofthecephase AT masaonakamura imagingtheformationandsurfacephaseseparationofthecephase AT yoshinoritokura imagingtheformationandsurfacephaseseparationofthecephase AT masashikawasaki imagingtheformationandsurfacephaseseparationofthecephase AT zhigaosheng imagingtheformationandsurfacephaseseparationofthecephase AT qingyoulu imagingtheformationandsurfacephaseseparationofthecephase
_version_	1718378027725881344

Imaging the formation and surface phase separation of the CE phase

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