On the Relation Between Magnetization Curves and Hysteresis Loops

1933 ◽  
Vol 1 (4) ◽  
pp. 121-121
Author(s):  
Thomas Spooner
Keyword(s):  
Hysteresis Loops ◽  
Magnetization Curves

scholarly journals Magnetization curves and hysteresis loops of nanostructured rare earth titanates

2018 ◽  
Vol 185 ◽  
pp. 03005
Author(s):  
Anatoly B. Rinkevich ◽  
Alexander V. Korolev ◽  
Mikhail I. Samoilovich ◽  
Sergej O. Demokritov ◽  
Dmitry V. Perov
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Hysteresis Loop ◽  
Magnetic Moment ◽  
Effective Magnetic Moment ◽  
Pyrochlore Structure ◽  
Hysteresis Loops ◽  
Nanocomposite Materials ◽  
Magnetization Curves ◽  
Crossing Point

Magnetic properties of the nanocomposite materials containing particles of rare earth titanates with pyrochlore structure have been investigated. For the nanocomposites with Gd2Ti2O7, La2Ti2O7 it has been observed that the effective magnetic moment in the nanocomposites differs substantially from that for Gd3+ and La3+ ions. The hysteresis loops was obtained for the nanocomposites with Dy3+, Gd3+, Yb3+, Er+, Sm3+ ions. There is no hysteresis loops for the nanocomposites with La2Ti2O7, Pr2Ti2O7 and Nd2Ti2O7 particles. It has been shown that nanocomposites with Yb2Ti2O7, Dy2Ti2O7 and Er2Ti2O7 particles have one crossing point on the descending branches of hysteresis loop in some temperature range.

Comparison of static hysteresis models subject to arbitrary magnetization waveforms

2017 ◽  
Vol 36 (3) ◽  
pp. 774-790 ◽  
Author(s):  
Martin Petrun ◽  
Simon Steentjes ◽  
Kay Hameyer ◽  
Drago Dolinar
Keyword(s):  
Design Methodology ◽  
Hysteresis Loops ◽  
Magnetization Curves ◽  
Hysteresis Model ◽  
Content Type ◽  
The Individual ◽  
Practical Implications ◽  
Excitation Waveform ◽  
Arbitrary Magnetization ◽  
Selection Of

Purpose This paper aims to compare different static history-independent hysteresis models (mathematical-, behavioural- and physical-based ones) and a history-dependent hysteresis model in terms of parameter identification effort and accuracy. Design/methodology/approach The discussed models were tested for distorted-excitation waveforms to explore their predictions of complex magnetization curves. Static hysteresis models were evaluated by comparing the calculated and measured major and minor static hysteresis loops. Findings The analysis shows that the resulting accuracy of the different hysteresis models is strongly dependent on the excitation waveform, i.e. smooth excitations, distorted flux waveforms, transients or steady-state regimes. Obtained results show significant differences between predictions of discussed static hysteresis models. Research limitations/implications The general aim was to identify the models on a very basic and limited set of measured data, i.e. if possible using only the measured major static loop of the material. The quasi-static major hysteresis loop was measured at Bmax = 1.5 T. Practical/implications The presented analysis allows selection of the most-suited hysteresis model for the sought-for application and appraisal of the individual limitations. Originality/value The presented analysis shows differences in intrinsic mechanisms to predict magnetization curves of the majority of the well-known static hysteresis models. The results are essential when selecting the most-suited hysteresis model for a specific application.

Demagnetizing correction in fluxmetric measurements of magnetization curves and hysteresis loops of ferromagnetic cylinders

2018 ◽  
Vol 449 ◽  
pp. 447-454 ◽  
Author(s):  
Du-Xing Chen ◽  
Enric Pardo ◽  
Yong-Hong Zhu ◽  
Li-Xiong Xiang ◽  
Jia-Quan Ding
Keyword(s):  
Hysteresis Loops ◽  
Magnetization Curves

IRREVERSIBLE SUSCEPTIBILITY OF INITIAL MAGNETIZATION CURVES DEFINED BY ENERGY CONSIDERATION

2007 ◽  
Vol 21 (21) ◽  
pp. 3707-3717 ◽  
Author(s):  
G. GOEV ◽  
V. MASHEVA ◽  
M. MIKHOV ◽  
J. GESHEV
Keyword(s):  
Magnetic Field ◽  
Hysteresis Loops ◽  
Model System ◽  
Magnetization Curves ◽  
Maximum Magnetic Field ◽  
Initial Magnetization ◽  
Curve Method ◽  
Energy Consideration ◽  
Minor Hysteresis Loops ◽  
Magnetization Processes

A method for the estimation of reversible and irreversible susceptibilities of initial magnetization curves has been developed. It deals with the energy necessary for magnetizing and demagnetizing the sample, but neither with the nature of the magnetization processes nor with a specific type of anisotropy, so it could be applied for a wide variety of real materials. A set of minor hysteresis loops of an initially demagnetized sample, plotted with progressively increasing maximum magnetic field, has been used. The obtained results showed excellent agreement with those calculated by the remanence curve method for a Stoner–Wohlfarth model system.

INFLUENCE OF BIQUADRATIC INTERACTION IN THE NANO-SCALED FIBONACCI MAGNETIC MULTILAYERS

2005 ◽  
Vol 19 (15n17) ◽  
pp. 2568-2573
Author(s):  
H. L. CAI ◽  
S. S. JIANG ◽  
W. T. SHENG ◽  
L. YANG ◽  
J. DU
Keyword(s):  
Magnetic Field ◽  
Magnetic Anisotropy ◽  
Magnetic Energy ◽  
Hysteresis Loops ◽  
Fibonacci Sequence ◽  
Magnetic Multilayers ◽  
Magnetization Curves ◽  
Biquadratic Exchange ◽  
Magnetic Layers

The magnetization of the magnetic multilayers with Fibonacci sequence was studied theoretically. By considering the Zeeman, magnetic anisotropy, bilinear and biquadratic exchange energies in the multiplayer system, the angles of the magnetization between all magnetic layers were calculated numerically by minimizing the magnetic energy. The magnetization curves and hysteresis loops were obtained. By considering the different strengths of biquadratic interaction between the magnetic layers some novel phenomena appears. The magnetization in magnetic sub-layers may rotates reversibly or irreversibly by magnetic field.

scholarly journals Аппроксимация влияния эффективных магнитных параметров на коэрцитивную силу нанокристаллических пленок на основе Fe

2018 ◽  
Vol 44 (10) ◽  
pp. 29
Author(s):  
Е.В. Харин ◽  
Е.Н. Шефтель ◽  
В.А. Теджетов
Keyword(s):  
Grain Size ◽  
Saturation Magnetization ◽  
Coercive Field ◽  
Hysteresis Loops ◽  
Anisotropy Field ◽  
Magnetization Curves ◽  
Model Approximation ◽  
Pareto Chart ◽  
Order Polynomial ◽  
Iron Based

AbstractThe magnetization curves and hysteresis loops of Fe, Fe_90N_10, Fe_95Zr_5, Fe_85Zr_5N_10, and Fe_77Zr_7N_16 films were measured for determining coercive field H _c, saturation magnetization M _s, and the rms fluctuation of local magnetic-anisotropy field a ^1/2 H _a of these iron-based materials. A model approximation with empirical second-order polynomial and Pareto chart clearly demonstrates the influence of the grain size, anisotropy field a ^1/2 H _a, and saturation magnetization on the coercive field.

scholarly journals Circular Magnetization Processes in CoFeNi Electroplated Wires

2009 ◽  
Vol 152-153 ◽  
pp. 341-344 ◽  
Author(s):  
H. García-Miquel ◽  
V.M. García-Chocano ◽  
G.V. Kurlyandskaya
Keyword(s):  
External Field ◽  
Magnetic Materials ◽  
Hysteresis Loops ◽  
Soft Magnetic Materials ◽  
Magnetization Curves ◽  
Frequency Range ◽  
Soft Magnetic ◽  
Sensor Applications ◽  
Magnetization Processes

Circular magnetization processes in electroplated wires is an important topic having straight connection with sensor applications of these soft magnetic materials. In present work the longitudinal and circular hysteresis loops were measured and corresponding magnetization processes were studied in Cu98Be2/Co16Fe20Ni64 wires. The longitudinal hysteresis loops, Mz-Hz, were measured by inductive technique in a frequency range of 10 to 70 Hz. The circular magnetization curves (Mφ- Hφ) were measured for frequencies of 50 and 100 kHz in the Hφ field up to 1500A/m for different values of the axial external field of 0 to 500 A/m. The longitudinal and circular magnetization curves are comparatively analyzed.

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