Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping

doi:10.1142/S0217984921503103

	Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping
	Wang, Weiyuan 3,6; Fan, Jiyu 3,6; Zheng, Huan 6; Wang, Jing 6; Liu, Hao 6; Wang, Caixia 4; Ma, Chunlan 1; Ling, Langsheng 5; Xu, Jingtao 2; Yang, Hao 3,6
刊名	MODERN PHYSICS LETTERS B
	2021-07-10
卷号	35
关键词	Perovskite manganite film conductivity polaron
ISSN号	0217-9849
DOI	10.1142/S0217984921503103
通讯作者	Fan, Jiyu(jiyufan@nuaa.edu.cn)
英文摘要	We have presented the structural, surface morphology, magnetic and resistivity data for perovskite LaMnO3 epitaxial thin films which are fabricated on well-oriented (001) LaAlO3 substrates by pulsed laser deposition technique. X-ray diffraction theta-2 theta linear scans and reciprocal space mapping measurement confirm that the out-of-plane and in-plane epitaxial relationship are LMO(001)/LAO(001) and LMO(110)/LAO(110), respectively. Surface roughness determined by atomic force microscopy was no more than 0.3 nm. In the whole studied temperature range, all films only show a paramagnetic behavior instead of any magnetic phase transitions. Correspondingly, the electron transport behaviors always exhibit an insulting state as the temperature changes from high to low. However, we find that none of theoretical models can individually be used to understand their conductive mechanisms. Further studies indicated that charge carries of high and low temperature region obey adiabatic and nonadiabatic small polaronic hopping mechanisms, respectively. This finding offers new ways of exploiting the abnormal ferromagnetism in LaMnO3 multilayer thin films.
资助项目	National Natural Science Foundation of China[11974181] ; National Natural Science Foundation of China[11774172]
WOS关键词	TRANSPORT-PROPERTIES ; MAGNETORESISTANCE ; RESISTIVITY
WOS研究方向	Physics
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000667726300006
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123484]
专题	中国科学院合肥物质科学研究院
通讯作者	Fan, Jiyu
作者单位	1.Suzhou Univ Sci & Technol, Sch Phys Sci & Technol, Jiangsu Key Lab Micro & Nano Heat Fluid Flow Tech, Suzhou 215009, Peoples R China 2.Ningbo Ruiling Adv Energy Mat Inst Co Ltd, Ningbo 315500, Peoples R China 3.MIIT, Key Lab Aerosp Informat Mat & Phys, NUAA, Nanjing 211106, Peoples R China 4.Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225002, Jiangsu, Peoples R China 5.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China 6.Nanjing Univ Aeronaut & Astronaut, Dept Appl Phys, Nanjing 210016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Weiyuan,Fan, Jiyu,Zheng, Huan,et al. Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping[J]. MODERN PHYSICS LETTERS B,2021,35.
APA	Wang, Weiyuan.,Fan, Jiyu.,Zheng, Huan.,Wang, Jing.,Liu, Hao.,...&Yang, Hao.(2021).Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping.MODERN PHYSICS LETTERS B,35.
MLA	Wang, Weiyuan,et al."Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping".MODERN PHYSICS LETTERS B 35(2021).