Co-Doped (La,Sr)TiO3: A High-Tc Diluted Ferromagnet With Large Spin Polarization

2006 ◽  
Author(s):  
G. Herranz ◽  
M. Basletic ◽  
M. Bibes ◽  
R. Ranchal ◽  
H. Jaffres ◽  
...  
Keyword(s):  
Spin Polarization ◽  
High Tc ◽  
Co Doped ◽  
Large Spin

2D Nonlayered Ferromagnetic VO2(M) Nanosheets Induced by the Strain Engineering of CO2

2021 ◽  
Author(s):  
Li Zhang ◽  
Yannan Zhou ◽  
Xiaoli Zheng ◽  
Jingyun Jiang ◽  
Qun Xu
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Polarization ◽  
Strain Engineering ◽  
The Family ◽  
Curie Temperatures ◽  
Large Spin

2D nonlayered ferromagnets possessing high Curie temperatures, sizable magnetic anisotropy, and large spin polarization are emerging as promising candidates for the family of 2D ferromagnetic. While the difficulties in synthesis...

Effects on the magnetic and optical properties of Co-doped ZnO at different electronic states

2017 ◽  
Vol 31 (31) ◽  
pp. 1750247
Author(s):  
Qingyu Huo ◽  
Zhenchao Xu ◽  
Linfeng Qu
Keyword(s):  
Absorption Spectrum ◽  
Spin Polarization ◽  
Electron Spin ◽  
Magnetic Moments ◽  
The State ◽  
Band Gaps ◽  
Electron Spin Polarization ◽  
Approximation Formula ◽  
Doped Zno ◽  
Co Doped

Both blue and red shifts in the absorption spectrum of Co-doped ZnO have been reported at a similar concentration range of doped Co. Moreover, the sources of magnetism of Co-doped ZnO are controversial. To solve these problems, the geometry optimization and energy of different Co-doped ZnO systems were calculated at the states of electron spin polarization and nonspin polarization by adopting plane-wave ultra-soft pseudopotential technology based on density function theory. At the state of electron nonspin polarization, the total energies increased as the concentration of Co-doped increased. The doped systems also became unstable. The formation energies increased and doping became difficult. Furthermore, the band gaps widened and the absorption spectrum exhibited a blue shift. The band gaps were corrected by local-density approximation + [Formula: see text] at the state of electron spin polarization. The magnetic moments of the doped systems weakened as the concentration of doped Co increased. The magnetic moments were derived from the coupling effects of [Formula: see text]–[Formula: see text]. The band gaps narrowed and the absorption spectrum exhibited a red shift. The inconsistencies of the band gaps and absorption spectrum at the states of electron spin polarization and nonspin polarization were first discovered in this research, and the sources of Co-doped ZnO magnetism were also reinterpreted.

Excited State Magnetic Exchange Interactions Enable Large Spin Polarization Effects

2018 ◽  
Vol 140 (6) ◽  
pp. 2221-2228 ◽  
Author(s):  
Benjamin W. Stein ◽  
Christopher R. Tichnell ◽  
Ju Chen ◽  
David A. Shultz ◽  
Martin L. Kirk
Keyword(s):  
Excited State ◽  
Spin Polarization ◽  
Exchange Interactions ◽  
Magnetic Exchange ◽  
Polarization Effects ◽  
Spin Polarization Effects ◽  
Large Spin

A polarization propagation mechanism of Fe and Cu atoms co-doped in two-dimensional-Si3N4

2020 ◽  
Vol 44 (33) ◽  
pp. 14082-14086
Author(s):  
Weili Li ◽  
Zhengxin Yan ◽  
Xiaowei Zhai ◽  
Li Chen ◽  
Wei Liu ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Polarization ◽  
Propagation Mechanism ◽  
Two Dimensional ◽  
Honeycomb Structures ◽  
Co Doped

Fe and Cu atoms doped into two dimensional (2D) Si3N4 honeycomb structures exhibit magnetic anisotropy, and planar spin-polarization propagation.

New aspect of intermediate energy heavy ion reactions. Large spin polarization of fragments

1990 ◽  
Vol 251 (4) ◽  
pp. 488-492 ◽  
Author(s):  
K. Asahi ◽  
M. Ishihara ◽  
N. Inabe ◽  
T. Ichihara ◽  
T. Kubo ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Heavy Ion ◽  
Intermediate Energy ◽  
Heavy Ion Reactions ◽  
Large Spin

scholarly journals Conductance recovery and spin polarization in boron and nitrogen co-doped graphene nanoribbons

Carbon ◽  
2015 ◽  
Vol 81 ◽  
pp. 339-346 ◽  
Author(s):  
Seong Sik Kim ◽  
Han Seul Kim ◽  
Hyo Seok Kim ◽  
Yong-Hoon Kim
Keyword(s):  
Spin Polarization ◽  
Graphene Nanoribbons ◽  
Doped Graphene ◽  
Co Doped

Effect of spin polarization on the optical properties of Co-doped TiO2 thin films

2011 ◽  
Vol 406 (8) ◽  
pp. 1429-1435 ◽  
Author(s):  
D. Sarkar ◽  
C.K. Ghosh ◽  
U.N. Maiti ◽  
K.K. Chattopadhyay
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Polarization ◽  
Tio2 Thin Films ◽  
Doped Tio2 ◽  
Co Doped

Investigations on the nature of observed ferromagnetism and possible spin polarization in Co-doped anatase TiO2 thin films

2003 ◽  
Vol 93 (10) ◽  
pp. 6125-6132 ◽  
Author(s):  
D. H. Kim ◽  
J. S. Yang ◽  
K. W. Lee ◽  
S. D. Bu ◽  
D.-W. Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Polarization ◽  
Anatase Tio2 ◽  
Tio2 Thin Films ◽  
Co Doped
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