Results 81 to 90 of about 21,197 (309)
Advanced Functional Materials, EarlyView.A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev +19 more
wiley +1 more source
Ferromagnetism manipulation on 2D carbon nitrides by substituents with different electronic effects
Next MaterialsWith weak spin-orbital coupling and a unique band structure, graphitic carbon nitride (g-C3N4) is an ideal candidate for a 2D metal-free ferromagnetic material that can be used in next-generation spintronics.
Chenglong Yang +7 more
doaj +1 more source
Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe
Advanced Functional Materials, EarlyView.By systematically introducing defects into FeGe via ion‐beam modification, we demonstrate that disorder broadens the temperature regime over which the topological Hall effect ‐ a signature of skyrmions or other chiral textures — appears, while also increasing its magnitude.
Chaman Gupta +11 more
wiley +1 more source
Probing the magnetic profile of diluted magnetic semiconductors using polarized neutron reflectivity
Scientific Reports, 2017 Room temperature ferromagnetism has been observed in the Cu doped ZnO films deposited under an oxygen partial pressure of 10−3 and 10−5 torr on Pt (200 nm)/Ti (45 nm)/Si (001) substrates using pulsed laser deposition.
X. Luo +9 more
doaj +1 more source
WEAK FERROMAGNETISM OF Ta1-xTixFe2
, 1988 Magnetic properties of Ta1-xTixFe2 have been studied. It is shown that the compounds with 0.1 ≤ x ≤ 0.4 show weak ferromagnetism with the magnetic moment of 0.1 µB/Fe atom and those with 0.4 ≤ x are antiferromagnets.
Y. Nakamura, M. Shiga, H. Wada
core +1 more source
Advanced Functional Materials, EarlyView.Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung +17 more
wiley +1 more source
Origin of Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene on Silicon Carbide
Nanomaterials, 2019 The discovery of room-temperature ferromagnetism of hydrogenated epitaxial graphene on silicon carbide challenges for a fundamental understanding of this long-range phenomenon.
Mohamed Ridene +2 more
doaj +1 more source
, 2007 The two-point correlation function of a Potts model on a graph $G$ may be expressed in terms of the flow polynomials of `Poissonian' random graphs derived from $G$ by replacing each edge by a Poisson-distributed number of copies of itself. This fact extends to Potts models the so-called random-current expansion of the Ising model.
openaire +2 more sources
Size-Controlled Ex-nihilo Ferromagnetism in Capped CdSe Quantum Dots
, 2014 [[abstract]]Hysteresis loops in D?=?1.8?nm CdSe-TOPO nanoparticles show ferromagnetism at 5?K and 300?K. Charge transfer from Cd to the Cd–O bond is shown by arrow in the Fourier transforms amplitudes of the EXAFS k2χ data at the Cd K-edge in the smaller
M. S. Seehra;P. Dutta;S. Neeleshwar;Y.-Y. Chen;C.-L. Chen;C.-L. Dong;S.-W. Chou;Chia-Chun Chen;C.-L. Chang
core
Room-temperature ferromagnetism in cerium dioxide powders [PDF]
, 2015 © 2015, Pleiades Publishing, Inc. Room-temperature ferromagnetism is detected in a CeO2 powder with a grain size of about 35 nm and a low (2 sample with a submicron crystallite size and the same manganese and iron impurity content is lower than in the ...
Rakhmatullin R. +3 more
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