scholarly journals Spin-cycloid instability as the origin of weak ferromagnetism in the disordered perovskiteBi0.8La0.2Fe0.5Mn0.5O3

2014 ◽  
Vol 89 (14) ◽  
Author(s):  
J. Bertinshaw ◽  
D. L. Cortie ◽  
Z. X. Cheng ◽  
M. Avdeev ◽  
A. J. Studer ◽  
...  
Keyword(s):  
Weak Ferromagnetism ◽  
Spin Cycloid

scholarly journals The Influence of Annealing Temperature on the Structure and Magnetic Properties of Nanocrystalline BiFeO3 Prepared by Sol–Gel Method

2021 ◽  
Author(s):  
T. Pikula ◽  
T. Szumiata ◽  
K. Siedliska ◽  
V. I. Mitsiuk ◽  
R. Panek ◽  
...  
Keyword(s):  
Grain Size ◽  
Magnetic Properties ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Weak Ferromagnetism ◽  
X Ray Diffraction ◽  
Gel Method ◽  
Sol Gel Method ◽  
Average Grain Size ◽  
Spin Cycloid

AbstractIn this work, BiFeO3 powders were synthesized by a sol–gel method. The influence of annealing temperature on the structure and magnetic properties of the samples has been discussed. X-ray diffraction studies showed that the purest phase was formed in the temperature range of 400 °C to 550 °C and the samples annealed at a temperature below 550 °C were of nanocrystalline character. Mössbauer spectroscopy and magnetization measurements were used as complementary methods to investigate the magnetic state of the samples. In particular, the appearance of weak ferromagnetic properties, significant growth of magnetization, and spin-glass-like behavior were observed along with the drop of average grain size. Mössbauer spectra were fitted by the model assuming cycloidal modulation of spins arrangement and properties of the spin cycloid were determined and analyzed. Most importantly, it was proved that the spin cycloid does not disappear even in the case of the samples with a particle size well below the cycloid modulation period λ = 62 nm. Furthermore, the cycloid becomes more anharmonic as the grain size decreases. The possible origination of weak ferromagnetism of the nanocrystalline samples has also been discussed.

WEAK FERROMAGNETISM IN SINGLE CRYSTALS OF KMnF4.H2O AND (NH4) MnF4.2H2O

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-819-C8-820 ◽  
Author(s):  
F. Palacio ◽  
M. Andrés ◽  
D. van Noort ◽  
A. J. van Duyneveldt
Keyword(s):  
Single Crystals ◽  
Weak Ferromagnetism

1D Mn(III) Coordination Polymers Exhibiting Chiral Symmetry Breaking and Weak Ferromagnetism

2021 ◽  
Author(s):  
Aoi Hara ◽  
Sotaro Kusumoto ◽  
Yoshihiro Sekine ◽  
Jack Harrowfield ◽  
Yang Kim ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Coordination Polymers ◽  
Chiral Symmetry Breaking ◽  
Weak Ferromagnetism ◽  
Chiral Ligands ◽  
One Dimensional

Mn(III) complexes with the non-chiral ligands, (E)-N-(2-((2-aminobenzylidene)amino)-2-methylpropyl)-5-X-2-hydroxybenzamide (HLX, X = H, Cl, Br, and I), crystallise as chiral conglomerates containing amide oxygen-bridged one-dimensional coordination polymers that exhibit weak ferromagnetism. The...

Origin of Weak Ferromagnetism in YbxFe4Sb12, Relationship between Weak Ferromagnetism and Filling Ratio x

2007 ◽  
Vol 76 (2) ◽  
pp. 024708 ◽  
Author(s):  
Tsuyoshi Ikeno ◽  
Akihiro Mitsuda ◽  
Toshio Mizushima ◽  
Tomohiko Kuwai ◽  
Yosikazu Isikawa ◽  
...  
Keyword(s):  
Weak Ferromagnetism ◽  
Filling Ratio

A Possible Model for the Weak Ferromagnetism of NiS2

1979 ◽  
Vol 46 (5) ◽  
pp. 1663-1664 ◽  
Author(s):  
Akio Yoshimori ◽  
Hisao Fukuda
Keyword(s):  
Weak Ferromagnetism

Perovskite-like Metal Formates with Weak Ferromagnetism and as Precursors to Amorphous Materials

2004 ◽  
Vol 43 (15) ◽  
pp. 4615-4625 ◽  
Author(s):  
Xin-Yi Wang ◽  
Lin Gan ◽  
Shi-Wei Zhang ◽  
Song Gao
Keyword(s):  
Amorphous Materials ◽  
Weak Ferromagnetism ◽  
Metal Formates

Effect of Diamagnetic A2+ Substitution on the Magnetic and Ferroelectric Properties of the Bi1−xAxFeO3 Multiferroics

2007 ◽  
Vol 1034 ◽  
Author(s):  
V. A. Khomchenko ◽  
D. A. Kiselev ◽  
J. M. Vieira ◽  
Li Jian ◽  
A. M. L. Lopes ◽  
...  
Keyword(s):  
Spin Structure ◽  
Ionic Radius ◽  
Ferroelectric Properties ◽  
Piezoresponse Force Microscopy ◽  
Weak Ferromagnetism ◽  
Force Microscopy ◽  
Microscopy Data ◽  
A Site ◽  
Induced Changes ◽  
Spiral Spin

AbstractInvestigation of crystal structure, magnetic and local ferroelectric properties of the diamagnetically-doped Bi1−xAxFeO3 (A= Ca, Sr, Pb, Ba; x= 0.2, 0.3) ceramic samples has been carried out. It has been shown that the solid solutions have a rhombohedrally distorted perovskite structure described by the space group R3c. Piezoresponse force microscopy data have revealed the existence of the spontaneous ferroelectric polarization in the samples at room temperature. Magnetization measurements have shown that the magnetic state of these compounds is determined by the ionic radius of the substituting elements. A-site substitution with the biggest ionic radius ions has been found to suppress the spiral spin structure of BiFeO3 and to result in the appearance of weak ferromagnetism. The magnetic properties have been discussed in terms of doping- induced changes in the magnetic anisotropy.

Fabrication of multifunctional ferromagnetic Au3Pd–CoSe nanoparticles

RSC Advances ◽  
2014 ◽  
Vol 4 (53) ◽  
pp. 28140-28147 ◽  
Author(s):  
Wipula P. R. Liyanage ◽  
Sukhada Mishra ◽  
Kai Song ◽  
Manashi Nath
Keyword(s):  
Optical Activity ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Weak Ferromagnetism

Multifunctional Au3Pd–CoSe nanoparticles synthesized through catalyst-aided chemical vapour deposition exhibits weak ferromagnetism and optical activity making them ideal for magneto-optics.

scholarly journals Flop of Electric Polarization Driven by the Flop of the Mn Spin Cycloid in MultiferroicTbMnO3

2009 ◽  
Vol 102 (20) ◽  
Author(s):  
N. Aliouane ◽  
K. Schmalzl ◽  
D. Senff ◽  
A. Maljuk ◽  
K. Prokeš ◽  
...  
Keyword(s):  
Electric Polarization ◽  
Spin Cycloid
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