Results 31 to 40 of about 567 (171)

Metallic Magnetic Nanoparticles

The Scientific World Journal, Volume 5, Issue 1, Page 972-1001, 2005., 2005
In this paper, we reviewed some relevant aspects of the magnetic properties of metallic nanoparticles with small size (below 4 nm), covering the size effects in nanoparticles of magnetic materials, as well as the appearance of magnetism at the nanoscale in materials that are nonferromagnetic in bulk.
A. Hernando, P. Crespo, M. A. García
wiley   +1 more source

Sobre a condenação do magnetismo animal: revisitando a história da psicologia

Psicologia: Teoria e Pesquisa
O presente trabalho procura desenvolver uma reflexão crítica sobre o processo de condenação do magnetismo animal. Partindo de uma crítica às versões lineares e progressistas da história da Psicologia, nas quais o magnetismo é excluído ou pouco explorado,
Maurício da Silva Neubern
doaj   +1 more source

Robust Directional Analysis of Magnetic Microscopy Images Using Non‐Linear Inversion and Iterative Euler Deconvolution

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract In paleomagnetism, bulk measurements of entire samples have traditionally been used to characterize remanent magnetization. While effective, this approach provides only a general directional estimate and cannot resolve spatial variability or magnetization at the grain scale.
Gelson F. Souza‐Junior, Leonardo Uieda, Ricardo I. F. Trindade, Roger R. Fu, Ualisson D. Bellon, Yago M. Castro   +5 more
wiley   +1 more source

Influence of Nanocrystalline Structure on the Magnetic Properties of Wires and Microwires

Texture, Stress, and Microstructure, Volume 32, Issue 1-4, Page 245-267, 1999., 1997
The determining factors of the outstanding magnetic properties of the so‐called nanocrystalline materials are described. The discussion is based on results performed on wires and microwire materials with general composition FeSiB(CuNb) and obtained by different rapid solidification techniques.
M. Vázquez, P. Marin, J. Arcas, A. Hernando, A. P. Zhukov, J. González   +5 more
wiley   +1 more source

Interplay Between Structure and Interfacial Interactions in Fe‐Gd Synthetic Ferrimagnets

Advanced Electronic Materials, Volume 12, Issue 4, 18 February 2026.
Synthetic ferrimagnets with nearly identical Gd–Fe compositions but different architectures and crystallinity were investigated by element‐resolved microscopy, structural analysis and atomistic spin simulations. The results show that Curie temperature and domain evolution are governed primarily by structural order and interface quality, demonstrating ...
Álvaro González‐García, Alejandro Álvarez‐Chico, Jairo Obando‐Guevara, Silvia Gallego, Unai Atxitia, Iulia Cojocariu, Matteo Jugovac, Tevfik Onur Menteş, Andrea Locatelli, Arantzazu Mascaraque, Miguel Ángel González‐Barrio   +10 more
wiley   +1 more source

Influence of Various Heat Treatments on Giant Magnetoimpedance Effect in Nanocrystalline FeSiBNbCu Ribbons

Texture, Stress, and Microstructure, Volume 32, Issue 1-4, Page 269-279, 1999., 1997
In this paper we present studies on the frequency dependence of the magneto‐impedance in the range of 0.1–2 MHz for Fe73.5Si13.5B9Nb3Cu1 and Fe73.5Si16.5B6Nb3Cu1 nanocrystalline ribbons, which differ in the sign of the magnetostriction constant. As cast samples were annealed in Ar atmosphere at 560℃, with and without an DC and AC magnetic field.
G. V. Kurlyandskaya, M. Vázquez, E. H.C.P. Sinnecker, A. P. Zhukov, J. P. Sinnecker, A. Hernando, M. El Ghannami   +6 more
wiley   +1 more source

Respuesta dinámica de la magnetización de una nanopartícula de magnetita a un campo magnético alterno

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Realizamos un estudio micromagnético del comportamiento dinámico de la magnetización de una nanopartícula de magnetita ante un campo magnético externo oscilante para contribuir al conocimiento de las condiciones bajo las cuales la magnetización de una ...
Nathaly Roa, Johans Restrepo
doaj   +1 more source

Historias de sugestión y magnetismo

Historia, Ciencias, Saude - Manguinhos
Maria Silvia Di Liscia
exaly   +2 more sources

Anomalies in the magnetostrictive modulation of love surface acoustic waves

AIP Advances
A magnetic surface acoustic wave (SAW) sensor is built by growing a 100 nm galfenol (Fe72Ga28) film by sputtering between the interdigitated transducers of a SAW delay line.
J. D. Aguilera, R. Loriente, L. Soria, A. Begue, R. Ranchal, I. Gràcia, S. Vallejos, A. Hernando, P. Marín, P. de la Presa, D. Matatagui   +10 more
doaj   +1 more source

High Magnetic Sensitivity at the Coercive Field Induced by Shear Horizontal SAW in Polycrystalline FeGa Films

Advanced Materials Technologies, Volume 10, Issue 18, September 18, 2025.
A theoretical framework links stress‐induced changes in the Young's modulus of Fe₇₂Ga₂₈ layers to their magnetization dynamics under SH‐SAW excitation. This interaction produces a sharp sensor response near the coercive field, highlighting FeGa's magnetoelastic sensitivity.
Juan Diego Aguilera, Rocio Ranchal, Fernando Gálvez, Jose Miguel Colino, Isabel Gràcia, Stella Vallejos, Antonio Hernando, Pilar Marín, Patricia de la Presa, Daniel Matatagui   +9 more
wiley   +1 more source