Results 111 to 120 of about 121,355 (298)

Electric Field Control of the Verwey Transition and Induced Magnetoelectric Effect in Magnetite

, 2012
We incorporate single crystal Fe$_3$O$_4$ thin films into a gated device structure and demonstrate the ability to control the Verwey transition with static electric fields.
Han, Wei, Kawakami, Roland K., Swartz, Adrian G., Wong, Jared J. I., Zheng, Renjing   +4 more
core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

Evidence for roughness driven 90° coupling in Fe3O4/NiO/Fe3O4 trilayers

Physical Review Letters, 1999
The magnetic interlayer coupling of Fe3O4 across NiO is studied using Fe3O4/NiO/Fe3O4 trilayers epitaxially grown on (001) MgO substrates. For NiO thicknesses between 0.7 and 5 nm, the magnetic moments of the two Fe3O4 layers are directed perpendicularly with respect to each other.
Heijden, van der, P.A.A., Swüste, C.H.W., Jonge, de, W.J.M., Gaines, J.M., Eemeren, van, J.T.W.M., Schep, K.M.   +5 more
openaire   +1 more source

Adsorption of NO on Fe3O4(111)

Chemical Physics Letters, 2018
Abstract Adsorption of NO on Fe3O4(111) is studied by density functional theory (DFT) calculations. NO is preferably adsorbed atop the octahedral site which has a clearly higher adsorption energy than the tetrahedral site. The difference in adsorption energy correlates with differences in adsorption geometries and N O stretch vibrations.
Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden ( host institution ), Busch, Michael ( author ), Mehar, Vikram ( UF author ), Merte, Lindsay R. ( author ), Shipilin, Mikhail ( author ), Lundgren, Edvin ( author ), Weaver, Jason F. ( UF author ), Grönbeck, Henrik ( author )   +7 more
openaire   +3 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Preparation of composite catalyst Fe3O4/ZIF-9 and its rapid degradation rates toward methylene blue

工程科学学报
To enhance the degradation rate of methylene blue (MB) in water, ultrasonication and solvothermal methods were used to prepare Fe3O4/ZIF-9 composite catalysts.
Haobo HE, Haixu LI, Tiannan JIANG, Liang XU, Long WANG, Jianing WANG, Peiyi PENG, Zichi GAO, Yuxin QIN, Xiaoguang LIU, Wendong XUE   +10 more
doaj   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Advanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

Advanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin, Yimo Yan, Nikola Cesarovic, Simone Schuerle   +3 more
wiley   +1 more source

Synthesis of Fe3O4@m-SiO2 Nanocomposites Using Rice Husk Ash Derived SiO2 [PDF]

Iranian Journal of Materials Science and Engineering
Fe3O4 nanoparticles (NPs) with a continuous and mesoporous silica (m-SiO2) shell were synthesized using a one-step method, sourcing silica from rice husk ash (RHA).
Nazli Aharipour, Adrine Malek khachatourian, Ali Nemati   +2 more
doaj