scholarly journals Influence of fourfold anisotropy form on hysteresis loop shape in ferromagnetic nanostructures

AIP Advances ◽  
2014 ◽  
Vol 4 (8) ◽  
pp. 087115 ◽  
Author(s):  
Andrea Ehrmann ◽  
Tomasz Blachowicz
Keyword(s):  
Hysteresis Loop ◽  
Ferromagnetic Nanostructures ◽  
Loop Shape

THE HYSTERESIS LOOP 2. AN ANALYSIS OF THE LOOP SHAPE

1982 ◽  
Vol 5 (1) ◽  
pp. 33-44 ◽  
Author(s):  
J. POLÁK ◽  
M. KLESNIL ◽  
J. HELEŠIC
Keyword(s):  
Hysteresis Loop ◽  
Loop Shape ◽  
Loop 2

scholarly journals Domain nucleation and hysteresis loop shape in piezoresponse force spectroscopy

2006 ◽  
Vol 89 (19) ◽  
pp. 192901 ◽  
Author(s):  
Anna N. Morozovska ◽  
Eugene A. Eliseev ◽  
Sergei V. Kalinin
Keyword(s):  
Hysteresis Loop ◽  
Force Spectroscopy ◽  
Loop Shape

Strain Cycling Effects in 1100 Aluminum

1970 ◽  
Vol 92 (1) ◽  
pp. 126-130 ◽  
Author(s):  
H. A. Moreen
Keyword(s):  
Flow Stress ◽  
Hysteresis Loop ◽  
Strain Hardening ◽  
Material Properties ◽  
Plastic Anisotropy ◽  
Strain Behavior ◽  
Annealed Material ◽  
Loop Shape ◽  
Strain Cycling ◽  
Stress Parameters

The cyclic hysteresis-loop stress-strain behavior, i.e., the hysteresis-loop-shape, of 1100 aluminum was investigated. A power function: ep=K1Sn1+K2Sn2 describes the saturated hysteresis-loop-shape behavior. The exponents n1 and n2 are hysteresis-loop strain-hardening exponents corresponding to the behavior at high and low values of strain and are material properties with the values 0.12 and 0.02, respectively, for annealed material. The flow stress parameters, K1 and K2, depend on cyclic history and plastic anisotropy. A dislocation shuttling model is consistent with the observed behavior.

scholarly journals Synthesis and Characterization of Single Crystals Y3Fe5O12 and Bi3Fe5O12 Prepared via Sol Gel Technique

2009 ◽  
Vol 283-286 ◽  
pp. 406-412 ◽  
Author(s):  
Noorhana Yahya ◽  
Krzysztof Koziol ◽  
Mohd Kamarulzaman Bin Mansor
Keyword(s):  
Hysteresis Loop ◽  
Single Crystals ◽  
Raw Materials ◽  
Sol Gel ◽  
X Ray Diffraction ◽  
Nano Crystalline ◽  
Transmission Electron ◽  
Rectangular Hysteresis Loop ◽  
Loop Shape ◽  
Iron Garnet

Magnetic properties of nano-crystalline yttrium iron garnet, Y3Fe5O12 and bismuth iron garnet, Bi3Fe5O12 were studied. The samples were synthesized by using sol gel route. The gel were prepared using nitrates of yttrium and iron for the yttium iron garnet (YIG) and nitrates of bismuth and iron for the bismuth iron garnet (BIG). The raw materials were mixed and dissolved in citric acid and were stirred for 3 months in room temperature until the gel was observed. The X-ray diffraction pattern reveals the cubic structure of YIG and BIG samples at 7000C and 5000C respectively. From the M-H diagrams it was found that the YIG and BIG samples have saturation magnetization, Ms of 27.2 Gs with rectangular hysteresis loop and 24.4 Gs with S hysteresis loop, respectively. It is evident from the FESEM micrographs that the rectangular loop shape (YIG) arises from the homogeneous and rounded microstructure as compared to the inhomogenous and random orientation microstructure (BIG) of the samples. From the Electron diffraction done on Transmission Electron Microscope, both of the samples were shown to be single crystals.

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