Exchange bias and magnetodielectric coupling effects in ZnFe2O4–BaTiO3 composite thin films

CrystEngComm ◽  
2012 ◽  
Vol 14 (20) ◽  
pp. 6477 ◽  
Author(s):  
Michael Lorenz ◽  
Michael Ziese ◽  
Gerald Wagner ◽  
Jörg Lenzner ◽  
Christian Kranert ◽  
...  
Keyword(s):  
Thin Films ◽  
Exchange Bias ◽  
Coupling Effects ◽  
Composite Thin Films

Exchange bias in zinc ferrite-FeNiMoB based metallic glass composite thin films

2015 ◽  
Author(s):  
Lisha R ◽  
Hysen T ◽  
Geetha P ◽  
Aravind P. B ◽  
S. Ojha ◽  
...  
Keyword(s):  
Thin Films ◽  
Metallic Glass ◽  
Exchange Bias ◽  
Zinc Ferrite ◽  
Glass Composite ◽  
Composite Thin Films

scholarly journals Exchange Bias Effect in LaFeO3: La0.7Ca0.3MnO3 Composite Thin Films

Coatings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1125
Author(s):  
Feng Wang ◽  
Wei Fu ◽  
Chengming Jiang ◽  
Junxiao Li ◽  
Jijie Huang
Keyword(s):  
Thin Films ◽  
Exchange Bias ◽  
Physical Property ◽  
Bias Field ◽  
Magnetic Storage ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Composite Thin Films ◽  
Composition Variation ◽  
Two Phases

Composite thin films arouse great interests owing to the multifunctionalities and heterointerface induced physical property tailoring. The exchange bias effect aroused from the ferromagnetic (FM)–antiferromagnetic (AFM) heterointerface is applicable in various applications such as magnetic storage. In this work, (LaFeO3)x:(La0.7Ca0.3MnO3)1−x composite thin films have been deposited via pulsed laser deposition (PLD) and the exchange bias effect was investigated. In such system, LaFeO3 (LFO) is an antiferromagnet while La0.7Ca0.3MnO3 (LCMO) is a ferromagnet, which results in the exchange bias interfacial coupling at the FM/AFM interface. The composition variation of the two phases could lead to the exchange bias field (HEB) tuning in the composite system. This work demonstrates a new composite thin film system with FM-AFM interfacial exchange coupling, which could be applied in various spintronic applications.

Controllable Interfacial Coupling Effects on the Magnetic Dynamic Properties of Perpendicular [Co/Ni]5/Cu/TbCo Composite Thin Films

2018 ◽  
Vol 10 (5) ◽  
pp. 5090-5098 ◽  
Author(s):  
Minghong Tang ◽  
Bingcheng Zhao ◽  
Weihua Zhu ◽  
Zhendong Zhu ◽  
Q. Y. Jin ◽  
...  
Keyword(s):  
Thin Films ◽  
Dynamic Properties ◽  
Interfacial Coupling ◽  
Coupling Effects ◽  
Composite Thin Films ◽  
Magnetic Dynamic

Robust ferromagnetic insulating and large exchange bias in LaMnO3:CoO composite thin films

2022 ◽  
Author(s):  
Xiaoyu Zhang ◽  
Ya-jun Tao ◽  
Pei-jie Jiao ◽  
Jian Wang ◽  
Ji Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Exchange Bias ◽  
Bias Field ◽  
Blocking Temperature ◽  
Composite Thin Films ◽  
Spintronic Devices ◽  
Actual Application ◽  
X Ray Absorption ◽  
Interfacial Charge ◽  
Charge Defect

Abstract Ferromagnetic insulators have received widespread attention for applications in novel low power consumption spintronic devices. Further optimizing the robust ferromagnetic insulating and developing multifunctional ferromagnetic insulator by integrating other magnetic property can not only ease or pave the way for actual application, but also provide an additional freedom degree for device designing. In this work, by introducing antiferromagnetic CoO into ferromagnetic insulator LaMnO3, we have constructed (1-x)LaMnO3:xCoO composite thin films. The films simultaneously show robust ferromagnetic insulator characteristics and large exchange bias. For x = 0.5 sample, the resistivity is 120 Ω·cm at 250 K while the magnetization is 100 emu/cm3 and the exchange bias field is -2200 Oe at 10 K. Especially, the blocking temperature is up to 140 K. Synchrotron radiation x-ray absorption spectroscopy reveals the coexistence of Mn3+, Mn2+, Co2+ and Co3+, arising from interfacial charge transfer and space charge/defect trapping, should be responsible for the enhanced and integrated multifunctional magnetic properties.

scholarly journals Exchange bias effect and magnetoelectric coupling behaviors in multiferroic Co/Co3O4/PZT composite thin films

2015 ◽  
Vol 64 (9) ◽  
pp. 097701
Author(s):  
Li Yong-Chao ◽  
Zhou Hang ◽  
Pan Dan-Feng ◽  
Zhang Hao ◽  
Wan Jian-Guo
Keyword(s):  
Thin Films ◽  
Exchange Bias ◽  
Magnetoelectric Coupling ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Composite Thin Films

Strain Control of Phase Transition and Exchange Bias in Flexible Heusler Alloy Thin Films

2021 ◽  
Author(s):  
Yechao Ling ◽  
Yong Hu ◽  
Haobo Wang ◽  
Ben Niu ◽  
Jiawei Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Exchange Bias ◽  
Heusler Alloy ◽  
Strain Control

scholarly journals X-ray Photoelectron Spectroscopy Analysis of Chitosan–Graphene Oxide-Based Composite Thin Films for Potential Optical Sensing Applications

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 478
Author(s):  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
Yap Wing Fen ◽  
Silvan Saleviter ◽  
Narong Chanlek ◽  
Hideki Nakajima ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Functional Group ◽  
Optical Sensing ◽  
Composite Thin Films ◽  
Cobalt Ions ◽  
X Ray ◽  
Sensing Applications

In this study, X-ray photoelectron spectroscopy (XPS) was used to study chitosan–graphene oxide (chitosan–GO) incorporated with 4-(2-pyridylazo)resorcinol (PAR) and cadmium sulfide quantum dot (CdS QD) composite thin films for the potential optical sensing of cobalt ions (Co2+). From the XPS results, it was confirmed that carbon, oxygen, and nitrogen elements existed on the PAR–chitosan–GO thin film, while for CdS QD–chitosan–GO, the existence of carbon, oxygen, cadmium, nitrogen, and sulfur were confirmed. Further deconvolution of each element using the Gaussian–Lorentzian curve fitting program revealed the sub-peak component of each element and hence the corresponding functional group was identified. Next, investigation using surface plasmon resonance (SPR) optical sensor proved that both chitosan–GO-based thin films were able to detect Co2+ as low as 0.01 ppm for both composite thin films, while the PAR had the higher binding affinity. The interaction of the Co2+ with the thin films was characterized again using XPS to confirm the functional group involved during the reaction. The XPS results proved that primary amino in the PAR–chitosan–GO thin film contributed more important role for the reaction with Co2+, as in agreement with the SPR results.

Characterization of commercial thermoelectric organic composite thin films

2019 ◽  
Vol 54 (13) ◽  
pp. 9565-9572 ◽  
Author(s):  
Fu Li ◽  
Jing-ting Luo ◽  
Zhuang-hao Zheng ◽  
Guang-xing Liang ◽  
Ai-hua Zhong ◽  
...  
Keyword(s):  
Thin Films ◽  
Composite Thin Films
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