Results 51 to 60 of about 50,805 (272)

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

Advanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song, Ziqi Wei, Lupeng Han, Zhenlin Wang, Chenghao Fan, Donglin Han, Chunwei Dong, Haiyan Duan, Xiyang Wang, Sam Fong Yau Li, Eslam Hamed, Ming Xie, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

A hysteresis model with dipole interaction: one more devil-staircase

, 2001
Magnetic properties of 2D systems of magnetic nanoobjects (2D regular lattices of the magnetic nanoparticles or magnetic nanostripes) are considered. The analytical calculation of the hysteresis curve of the system with interaction between nanoobjects is
A. A. Fraerman, A. A. Fraerman, A. A. Fraerman, A. O. Adeyeye, A. Zhukov, Akira Sugawara, Akira Sugawara, Bo Cui, Chiseki Haginoya, D. Grundler, G. Brown, H.-B. Braun, I. R. Karetnikova, J. Hauschild, J. I. Martin, J. M. Gonzalez, J. N. Chapman, L. C. Sampaio, M. Farhoud, M. Gross, M. Hwang, M. V. Sapozhnikov, P. Bak, P. Bak, R. P. Cowburn, S. A. Gusev, S. Pignard, S. S. Parkin, V. M. Rozenbaum   +28 more
core   +2 more sources

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Evolution of magnetic properties in the vicinity of the Verwey transition in Fe3O4 thin films

, 2017
We have systematically studied the evolution of magnetic properties, especially the coercivity and the remanence ratio in the vicinity of the Verwey transition temperature (TV ), of high-quality epitaxial Fe3O4 thin films grown on MgO (001), MgAl2O4 (MAO)
Liu, W., Liu, X. H., Zhang, Z. D.
core   +1 more source

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

Advanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis, Andrea Cosola, Pierre Bourdon, Hichem Dammak, Marco Sangermano, Frédéric Demoly, Marco Faustini, Amélie Pérot, Didier Lairez, Rakine Mouhoubi, Sébastien Blanquer, Giancarlo Rizza   +11 more
wiley   +1 more source

Production of single-domain magnetite throughout life by sockeye salmon, Oncorhynchus nerka [PDF]

, 1988
Although single-domain particles of biogenic magnetite have been found in different species of pelagic fishes, nothing is known about when it is synthesized, or about whether the time during life when it is produced is correlated with the development of
Groot, Cornelis, Kirschvink, Joseph L., Quinn, Thomas P., Walker, Michael M.   +3 more
core   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

The Impact of Ho Addition on the Microstructural Features and Magnetic Performances of Sintered NdFeB Magnets

Magnetochemistry
Two NdFeB magnets with distinct compositions were fabricated via an identical process. One magnet was doped with 2.5 wt.% of Ho, whereas the other remained undoped.
Xin-De Zhu, Wei-Ming Liu, Fei Wang, Zhao-Pu Xu, Qian Wang, Xiao-Qian Gu, Meng Li, Ya Jiang, Feng-Sheng Xue, Mei Wang   +9 more
doaj   +1 more source

Investigation of oscillation frequency and disorder induced dynamic phase transitions in a quenched-bond diluted Ising ferromagnet

, 2012
Frequency evolutions of hysteresis loop area and hysteresis tools such as remanence and coercivity of a kinetic Ising model in the presence of quenched bond dilution are investigated in detail.
Acharyya, Acharyya, Acharyya, Acharyya, Acharyya, Akinci, Altavilla, Chakrabarti, Choi, Deviren, Erol Vatansever, Gilmore, Glauber, Hamza Polat, He, Honmura, Huang, Jiang, Kaneyoshi, Korniss, Lee, Lee, Liu, Liu, Lo, Luse, Lyuksyutov, Mayergoyz, Misra, Moore, Nattermann, Nattermann, Punya, Rao, Rivera, Robb, Santi, Schütze, Shi, Sides, Sides, Sides, Steinmetz, Tamura, Tomè, Vatansever, Wang, Yusuf Yüksel, Zheng, Zhong, Zhu, Zimmer, Ümit Akıncı   +52 more
core   +1 more source

Quantitative Decoding of Interactions in Tunable Nanomagnet Arrays Using First Order Reversal Curves [PDF]

, 2014
To develop a full understanding of interactions in nanomagnet arrays is a persistent challenge, critically impacting their technological acceptance. This paper reports the experimental, numerical and analytical investigation of interactions in arrays of ...
Dumas, Randy K., Eibagi, Nasim, Gilbert, Dustin A., Gomez, Alicia, Liu, Kai, Vicent, J. L., Winklhofer, Michael, Zimanyi, Gergely T.   +7 more
core   +3 more sources