Results 1 to 10 of about 48,917 (32)

From Nagaoka's ferromagnetism to flat-band ferromagnetism and beyond: An introduction to ferromagnetism in the Hubbard model [PDF]

open access: yes, 1998
This is a self-contained review about ferromagnetism in the Hubbard model, which should be accessible to readers with various backgrounds who are new to the field.
Tasaki, Hal
core   +2 more sources

Structural, optical, magnetic and electrical properties of Zn1-x Co (x) O thin films [PDF]

open access: yes, 2008
Despite a considerable effort aiming at elucidating the nature of ferromagnetism in ZnO-based magnetic semiconductor, its origin still remains debatable.
Chen, Y. B.   +7 more
core   +1 more source

A dynamical mean-field theory study of Nagaoka ferromagnetism [PDF]

open access: yes, 2007
We revisit Nagaoka ferromagnetism in the U=oo Hubbard model within the dynamical mean-field theory (DMFT) using the recently developed continuous time quantum Monte Carlo method as the impurity solver.
Haule, K.   +3 more
core   +1 more source

Significant enhancement of ferromagnetism in Zn$_{1-x}$Cr$_{x}$Te doped with iodine as an n-type dopant [PDF]

open access: yes, 2006
The effect of additional doping of charge impurities was investigated in a ferromagnetic semiconductor Zn$_{1-x}$Cr$_{x}$Te. It was found that the doping of iodine, which is expected to act as an n-type dopant in ZnTe, brought about a drastic enhancement
Eryu, Osamu   +7 more
core   +2 more sources

Gate-induced band ferromagnetism in an organic polymer

open access: yes, 2001
We propose that a chain of five-membered rings (polyaminotriazole) should be ferromagnetic with an appropriate doping that is envisaged to be feasible with an FET structure.
A. Mielke   +28 more
core   +1 more source

Enhancement of ferromagnetism by p-wave Cooper pairing in superconducting ferromagnets

open access: yes, 2009
In superconducting ferromagnets for which the Curie temperature $T_{m}$ exceeds the superconducting transition temperature $T_{c}$, it was suggested that ferromagnetic spin fluctuations could lead to superconductivity with p-wave spin triplet Cooper ...
Gu, Qiang   +3 more
core   +1 more source

Theory of ferromagnetism in vanadium-oxide based perovskites

open access: yes, 2013
The conditions under which ferromagnetism may occur in transition metal oxides with partially filled $t_{2g}$ shells such as vanadium-based perovskites are studied using a combination of density functional and single-site dynamical mean field methods ...
Dang, Hung T., Millis, Andrew J.
core   +1 more source

Coherently photo-induced ferromagnetism in diluted magnetic semiconductors [PDF]

open access: yes, 2003
Ferromagnetism is predicted in undoped diluted magnetic semiconductors illuminated by intense sub-bandgap laser radiation . The mechanism for photo-induced ferromagnetism is coherence between conduction and valence bands induced by the light which leads ...
A. H. MacDonald   +8 more
core   +3 more sources

Electron Accumulation and Emergent Magnetism in LaMnO3/SrTiO3 Heterostructures

open access: yes, 2017
Emergent phenomena at polar-nonpolar oxide interfaces have been studied intensely in pursuit of next-generation oxide electronics and spintronics. Here we report the disentanglement of critical thicknesses for electron reconstruction and the emergence of
Arenholz, E.   +21 more
core   +1 more source

Observation of a pressure-induced transition from interlayer ferromagnetism to intralayer antiferromagnetism in Sr4Ru3O10 [PDF]

open access: yes, 2018
Sr4Ru3O10 is a Ruddlesden-Popper compound with triple Ru-O perovskite layers separated by Sr-O alkali layers. This compound presents a rare coexistence of interlayer (c-axis) ferromagnetism and intralayer (basal-plane) metamagnetism at ambient pressure ...
Cao, G.   +8 more
core   +3 more sources

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