Analytical prediction of the magnetization curve and the ferromagnetic hysteresis loop

1983 ◽  
Vol 54 (10) ◽  
pp. 5935-5940 ◽  
Author(s):  
M. A. Escobar ◽  
R. Valenzuela ◽  
L. F. Magaña
2019 ◽  
Vol 7 (36) ◽  
pp. 11085-11089
Author(s):  
Iwona Lazar ◽  
Monika Oboz ◽  
Jerzy Kubacki ◽  
Andrzej Majchrowski ◽  
Julita Piecha ◽  
...  

For the first time, a weak ferromagnetic hysteresis loop at room temperature has been observed in PbZr1−xTixO3 (PZT) single crystals.


2003 ◽  
Vol 784 ◽  
Author(s):  
Kwi-Young Yun ◽  
Minoru Noda ◽  
Masanori Okuyama ◽  
Hiromasa Saeki ◽  
Hitoshi Tabata

ABSTRACTBiFeO3 thin film has been prepared on Pt/TiO2/SiO2/Si substrate at a temperature as low as 450°C by pulsed-laser deposition. The BiFeO3 thin film is perovskite single-phase, while any nonperovskite phase, such as orthorhombic Bi2Fe4O9, is not included. Dielectric constant of the film is 87, dielectric loss is 0.03, and leakage current density is low. The coexistence of ferroelectricity and ferromagnetism has been confirmed by means of the P-E and M-H hysteresis characteristics. The BiFeO3 thin film shows a well-saturated hysteresis loop with twice the remanent polarization 2Pr = 54 μC/cm2 and coercive field 2Ec = 100 kV/cm for a maximum applied electric field of 100 kV/cm, and also shows a saturated weak ferromagnetic hysteresis loop, as well as a small remanent magnetization with 2Mr = 0.6 emu/cm3 and 2 Hc = 200 Oe for a maximum magnetic field of 10 kOe at room temperature.


1992 ◽  
Vol 29 (4) ◽  
pp. 339-353
Author(s):  
K. Turvey ◽  
T. Turvey

Measurement of magnetically induced stress as a means of determining magnetization characteristics of mild steel The magnetic major hysteresis loop and the initial magnetization curve are obtained for mild steel from measurements of the attractive force between magnetized semi-rings. A check determination of the hysteresis loop using a standard method yields good agreement.


2021 ◽  
Vol 8 ◽  
Author(s):  
P. P. Shen ◽  
Y. T. Wang ◽  
B. A. Sun

The phenomenon of inverted hysteresis loop has been observed in many materials for the past decades. However, the physical origin of the inverted hysteresis loop has long been debated. Here, we report the completely inverted hysteresis loop with a clockwise cycle in the soft-magnetic nanocrystalline Fe73.5Cu1Nb3Si13.5B9 alloy and amorphous Fe73.5Cu1Nb3Si13.5B9 alloy at room temperature. The negative remanence and positive coercivity were observed in the descending branch of magnetization curve when the scan field range was above 1 KOe. By comparing the results with that of the standard Pd sample, we found that the net coercivities of the nanocrystalline Fe73.5Cu1Nb3Si13.5B9 alloy and standard Pd sample are almost equal for the different scanning field ranges. Therefore, it is confirmed that the phenomenon of completely inverted hysteresis loop is caused by the remanence of superconducting magnet rather than the structural inhomogeneity effects. Our results suggest that special care should be taken during the measurement of hysteresis loops using MPMS 3, especially for the materials with small coercivity.


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