有机自旋电子学的应用研究进展

辛, 林远; 沈, 家骢; 马, 於光; 李, 峰; 刘, 式墉

doi:10.1360/csb2008-53-23-2865

Chin. Sci. Bull.

2008

DOI: 10.1360/csb2008-53-23-2865

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有机自旋电子学的应用研究进展

林远辛¹,

家骢沈²,

於光马³

et al.

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Spin electromagnetic field and dipole: A localized and quantized field

Feng

2011

Chin. Sci. Bull.

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This paper investigates the structure of a spin electromagnetic (EM) field and its various physical properties. A spin EM field is an intrinsic mode of free space, which satisfies the spin equations derived from Maxwell equations. A spin mode has two basic properties: the spin along its axis and the localization of electromagnetic field. The source and EM structure of this electric and magnetic mode are described in detail in this paper. The distributed charge and current of a spin mode can be integrated to obtain the electric and magnetic moment, and they can be treated as the electromagnetic dipole. A spin mode possesses both wave and particle properties: a wave number, angular frequency and characteristic speed are its wave parameters; an intrinsic radius, energy and angular momentum are its dynamic parameters. The former is analogous to an EM resonant mode; the latter is similar to the behavior of a particle with intrinsic spin. There are two kinds of electric modes present, one can be expressed through a pair of charges, and the other can be expressed by a magnetic current. They both have the same electric moment, but have different divergence properties.spin electromagnetic field, spin equation, distribution source, dipole, moment, intrinsic radius, quantized, Plank constant Citation:Feng Z H. Spin electromagnetic field and dipole: A localized and quantized field.

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Spin electromagnetic field and dipole: A localized and quantized field

Feng

2011

Chin. Sci. Bull.

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First-principles research on influence of C dopants on magnetic and electric properties of rocksalt MgS

et al. 2010

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The 2×2×1 rocksalt C-doped MgS supercells are optimized and their magnetic and electric properties, including the half-metallicity, the conductivity and the supercell magnetic moments, are calculated or analysed by the first-principles researches based on the density functional theory. Results show that the concentration of C-dopants may cause important influence on the magnetic and the electric properties of rocksalt MgS. C dopants are inclined to have a scattering distribution. MgC0.0625S0.9375, aMgC0.1250S0.8750 and MgC0.1875S0.8125 have evident half-metallicity. They have wide spin energy gaps, thus high Curie temperature possibly. Their supercell magnetic moments are near to integral numbers 2.0, 4.0 and 6.0 μB. The main reason for spin polarization and half-metallicity of C-doped MgS is that there are sp hybridized orbitals in ligand compound ML6 caused by covalent interaction between C-ions and Mg-ions.

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The role of magnetic fields on the efficiency of OLED of double quantum well structures

Jiang¹,

Zhao-Hui²,

Lin³

et al. 2010

Acta Phys. Sin.

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The organic light emitting diodes with the structure of ITO/NPB(60 nm)/ Alq3 ∶Rubrene(1wt%,20 nm)/Alq3(3 nm)/Alq3:Rubrene(1wt%,20 nm)/ Alq3(20 nm)/LiF/Al, which have multiple quantum well structures (MQW), were fabricated and the magnetic field effects on the efficiency and current of the OLEDs were measured. The experiment showed that the current decreased monotoniocally, i.e. the resistance of the device increased under the magnetic field. At the same time, the magnetic field effect on efficiency was achieved. The changing ratio of efficiency increased 9.13% maximally when the magnetic field was below 20 mT. The changing ratio of efficiency decreased with the magnetic field increasing when the magnetic field was higher than 20 mT.

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有机自旋电子学的应用研究进展

Cited by 3 publications

References 0 publications

Spin electromagnetic field and dipole: A localized and quantized field

Spin electromagnetic field and dipole: A localized and quantized field

First-principles research on influence of C dopants on magnetic and electric properties of rocksalt MgS

The role of magnetic fields on the efficiency of OLED of double quantum well structures

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