scholarly journals Magnetization Characteristics of Ferromagnetic Materials by Visualizing The Dynamic Magnetic Wall Movements

2009 ◽  
Vol 29-1 (1) ◽  
pp. 161-161
Author(s):  
Takashi ISHII ◽  
Yoshifiiru SAITO ◽  
Kiyoshi HORII
Keyword(s):  
Ferromagnetic Materials ◽  
Magnetic Wall

PHENOMENOLOGY OF BARKHAUSEN EFFECT IN SOFT FERROMAGNETIC MATERIALS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1907-C8-1908 ◽  
Author(s):  
B. Alessandro ◽  
G. Bertotti ◽  
A. Montorsi
Keyword(s):  
Ferromagnetic Materials ◽  
Barkhausen Effect ◽  
Soft Ferromagnetic

scholarly journals Organic magnetoelectric and optomagnetic couplings: perspectives for organic spin optoelectronics

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Zhongxuan Wang ◽  
Wei Qin
Keyword(s):  
Ferromagnetic Materials ◽  
The Past ◽  
Potential Applications ◽  
Further Development

AbstractOver the past years, the development of organic ferromagnetic materials has been investigated worldwide for potential applications. Due to the couplings among the charge, orbit, spin, and phonon in organic ferromagnetic materials, magnetoelectric, and optomagnetic couplings have been realized and observed. In this review, progress in organic magnetoelectric and optomagnetic couplings is presented, and the mechanisms behind the phenomena are also briefly summarized. Hopefully, the understanding of magnetoelectric and optomagnetic couplings could provide guidance for the further development of organic spin optoelectronics.

scholarly journals Examining Ferromagnetic Materials Subjected to a Static Stress Load Using the Magnetic Method

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3455
Author(s):  
Tomasz Chady ◽  
Ryszard Łukaszuk
Keyword(s):  
Statistical Analysis ◽  
Measurement System ◽  
Rolling Direction ◽  
Hysteresis Loops ◽  
Ferromagnetic Materials ◽  
Static Stress ◽  
Magnetic Method ◽  
Experimental Examination ◽  
Stress Load ◽  
Anisotropic Steel

This paper discusses the experimental examination of anisotropic steel-made samples subjected to a static stress load. A nondestructive testing (NDT) measurement system with a transducer, which enables observation of local hysteresis loops and detection of samples’ inhomogeneity, is proposed. Local hysteresis loops are measured on two perpendicular axes, including one parallel to the rolling direction of the samples. The results confirm that the selected features of the local hysteresis loops provide important information about the conditions of ferromagnetic materials. Furthermore, it is shown that the selected parameters of the statistical analysis of the achieved measurements are beneficial for evaluating stress and fatigue changes induced in the material.

scholarly journals Ultrafast optical manipulation of magnetic order in ferromagnetic materials

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Chuangtang Wang ◽  
Yongmin Liu
Keyword(s):  
Data Storage ◽  
Optical Switching ◽  
Ultrafast Lasers ◽  
Transport Model ◽  
Magnetic Interaction ◽  
Ferromagnetic Materials ◽  
Magnetic Storage ◽  
Magnetization Dynamics ◽  
Quarter Century ◽  
Ultrafast Optical

Abstract The interaction between ultrafast lasers and magnetic materials is an appealing topic. It not only involves interesting fundamental questions that remain inconclusive and hence need further investigation, but also has the potential to revolutionize data storage technologies because such an opto-magnetic interaction provides an ultrafast and energy-efficient means to control magnetization. Fruitful progress has been made in this area over the past quarter century. In this paper, we review the state-of-the-art experimental and theoretical studies on magnetization dynamics and switching in ferromagnetic materials that are induced by ultrafast lasers. We start by describing the physical mechanisms of ultrafast demagnetization based on different experimental observations and theoretical methods. Both the spin-flip scattering theory and the superdiffusive spin transport model will be discussed in detail. Then, we will discuss laser-induced torques and resultant magnetization dynamics in ferromagnetic materials. Recent developments of all-optical switching (AOS) of ferromagnetic materials towards ultrafast magnetic storage and memory will also be reviewed, followed by the perspectives on the challenges and future directions in this emerging area.

scholarly journals Magnetic Sensors Based on Amorphous Ferromagnetic Materials: A Review

Sensors ◽  
2015 ◽  
Vol 15 (11) ◽  
pp. 28340-28366 ◽  
Author(s):  
Carlos Morón ◽  
Carolina Cabrera ◽  
Alberto Morón ◽  
Alfonso García ◽  
Mercedes González
Keyword(s):  
Ferromagnetic Materials ◽  
Magnetic Sensors
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