Results 1 to 10 of about 7,335 (259)

Magneto‐Ionic Switching of Superparamagnetism [PDF]

Small, 2019
AbstractElectrochemical reactions represent a promising approach to control magnetization via electric fields. Favorable reaction kinetics have made nanoporous materials particularly interesting for magnetic tuning experiments. A fully reversible ON and OFF switching of magnetism in nanoporous Pd(Co) at room temperature is demonstrated, triggered by ...
Markus Gößler, Mihaela Albu, Gregor Klinser, Eva‐Maria Steyskal, Heinz Krenn, Roland Würschum   +5 more
openaire   +3 more sources

Emergent nanoscale superparamagnetism at oxide interfaces [PDF]

Nature Communications, 2016
Interfaces between complex oxides can exhibit diverse emergent phenomena, such as magnetic and superconducting order. Here, the authors evidence the emergence of nanoislands with a thickness dependent transition from superparamagnetic to ferromagnetic ...
Y. Anahory, L. Embon, C. J. Li, S. Banerjee, A. Meltzer, H. R. Naren, A. Yakovenko, J. Cuppens, Y. Myasoedov, M. L. Rappaport, M. E. Huber, K. Michaeli, T. Venkatesan, Ariando, E. Zeldov   +14 more
doaj   +2 more sources

Influence of Superparamagnetism on Exchange Anisotropy at CoO/[Co/Pd] Interfaces [PDF]

ACS Applied Materials & Interfaces, 2016
Magnetic systems exhibiting an exchange bias effect are being considered as materials for applications in data storage devices, sensors, and biomedicine.
Marcin Perzanowski, Marta Marszalek, Arkadiusz Zarzycki   +2 more
exaly   +2 more sources

The Synthesis of Size-Adjustable Superparamagnetism Fe3O4 Hollow Microspheres

Nanoscale Research Letters, 2017
One hundred fifty to 300-nm-sized monodisperse iron oxide (Fe3O4) hollow microspheres were synthesized by the one-pot hydrothermal method. The morphology and crystal structure of the as-prepared hollow microspheres was characterized by scanning electron ...
Chao Xu, Xiaolong Lu, Honglian Dai
doaj   +2 more sources

Chitosan – Graphite – Maghemite – a Flexible, Superparamagnetic Nanocomposite Comprising of Microcapacitors [PDF]

Progress in Physics of Applied Materials, 2023
In this work, an eco-friendly “green” nanocomposite of chitosan containing graphite and maghemite (g-Fe2O3) nanoparticles were prepared by solution casting method.
Saravanan Annamalai, Radha Perumal Ramasamy   +1 more
doaj   +1 more source

Multifunctional MXene–Fe₃O₄–Carbon Nanotube Composite Electrodes for High Active Mass Asymmetric Supercapacitors

Batteries, 2023
Ti3C2Tx–Fe3O4–carbon nanotube composites were prepared for electrochemical energy storage in the negative electrodes of supercapacitors. The electrodes show a remarkably high areal capacitance of 6.59 F cm−2 in a neutral Na2SO4 electrolyte, which was ...
Wenyu Liang, Rui Xu, Mohamed Nawwar, Igor Zhitomirsky   +3 more
doaj   +1 more source

Superparamagnetic Properties of Hemozoin [PDF]

Scientific Reports, 2016
AbstractWe report that hemozoin nanocrystals demonstrate superparamagnetic properties, with direct measurements of the synthetic hemozoin magnetization. The results show that the magnetic permeability constant varies from μ = 4585 (at −20 °C) to 3843 (+20 °C), with the values corresponding to a superparamagnetic system.
Inyushin, M., Kucheryavih, Yu., Kucheryavih, L., Rojas, L., Khmelinskii, Igor, Makarov, V.   +5 more
openaire   +3 more sources

Photocatalytic Activity of Magnetic Nano-β-FeOOH/Fe₃O₄/Biochar Composites for the Enhanced Degradation of Methyl Orange Under Visible Light

Nanomaterials, 2021
A novel nano-β-FeOOH/Fe3O4/biochar composite with enhanced photocatalytic performance and superparamagnetism was successfully fabricated via an environmentally friendly one-step method.
Zheng Zhang, Guanghua Wang, Wenbing Li, Lidong Zhang, Benwei Guo, Ling Ding, Xiangcheng Li   +6 more
doaj   +1 more source

Novel Carbon-Based Magnetic Luminescent Nanocomposites for Multimodal Imaging

Frontiers in Chemistry, 2020
Multifunctional nanocomposites can combine multiple functions into a single nanosystem and thus have attracted extensive interest in various fields.
Fangfang Liu, Xiaoming Mou, Jimei Song, Qin Li, Jinliang Liu   +4 more
doaj   +1 more source

From Structure to Function: Understanding Synthetic Conditions in Relation to Magnetic Properties of Hybrid Pd/Fe-Oxide Nanoparticles

Nanomaterials, 2022
Heterostructured magnetic nanoparticles show great potential for numerous applications in biomedicine due to their ability to express multiple functionalities in a single structure.
Alexandra Maier, Rogier van Oossanen, Gerard C. van Rhoon, Jean-Philippe Pignol, Iulian Dugulan, Antonia G. Denkova, Kristina Djanashvili   +6 more
doaj   +1 more source