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  • American Institute of Physics (AIP)  (3)
  • Springer  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Electronic structure and magnetic properties of R2Fe17Nx (x=0,3,4) and R2Fe17Cx (x=0,3), (R=Sm,Nd) : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 6916-6918 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The electronic structure and magnetic properties of rare-earth iron compounds R2Fe17Nx (x=0,3,4) and R2Fe17Cx (x=0,3) (R=Sm,Nd) have been studied by the self-consistent, spin-polarized local spin density functional theory calculations. Several cluster models were used to study the electronic structure of these compounds. For the R2Fe17Nx and R2Fe17Cx (x=0,3), the 9(e) sites in a unit cell are considered as occupied by N or C atoms. The additional N atom in the x=4 case is considered as occupying the 3(b) sites. The distribution of electrons and the magnetic moments for four kinds of crystalline inequivalent Fe atoms, Sm (Nd) and N(C) are calculated. The role of N or C atom in above compounds were discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352433
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of Mn on the magnetic properties of YFe2 : The 6th joint magnetism and magnetic materials (MMM)-intermag conference (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 7043-7045 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The fully self-consistent discrete variational method within the local-spin-density framework has been employed to obtain the electronic structure and magnetic moments of the Mn-containing cubic Laves phase pseudobinary compound of YFe2. The calculated results show that the substitution of Mn atoms on Fe sites weakens the ferromagnetism of this compound. The magnetic moments on distinct atomic sites were derived from the calculation. We found that when the Fe atom has one Mn atom in its nearest neighbor sites, its magnetic moment decreases rapidly, while the Mn moment is 0.71μB, parallel to the Fe moment. Based upon our results, the various experimental data have been satisfactorily explained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358042
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Group-specific component (Gc) subtypes in two chinese populations (1987)
    Springer
    Journal of human genetics 32 (1987), S. 83-89 
    Details
    ISSN: 1435-232X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The genetic polymorphism of serum group-specific component (Gc) was studied in two Chinese (Han) populations using isoelectric focusing followed by immunofixation. Six common and seven rare variant phenotypes were observed among 155 samples from Beijing and 256 samples from Guangzhou. The frequencies for the common alleles,Gc * 1F,Gc * 1S, andGc * 2, were 0.4774, 0.2000, and 0.3065, respectively, for Beijing, and 0.4316, 0.2891, and 0.2734, respectively, for Guangzhou. Only the frequency ofGc * 1S showed a statistically significant difference between the two localities. The rare Gc variants observed were: Gc 1A3, Gc 1A8, Gc 1C18 and Gc 2A4. Furthermore, two new rare Gc variants were detected and named Gc 1C50 and Gc 2A19.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01893161
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Genetic polymorphisms of complement C6 and C7 in two Chinese populations (1986)
    Springer
    Journal of human genetics 31 (1986), S. 263-271 
    Details
    ISSN: 1435-232X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Genetic polymorphisms of the complement components C6 and C7 in two Chinese populations (Beijing and Guangzhou) were investigated, using isoelectric focusing and immunoblotting technique. Three common and four rare allotypes of C6 were observed, and one of the rare allotypes was considered to be a new variant. Ten different patterns of C7 observed were classified into three homozygous and seven heterozygous phenotypes, indicating occurrence of four common and a new variant alleles. The new variants of C6 and C7 detected were designated as C6 B21 and C7 6, respectively. There was no statistically significant difference for C6 and C7 allele frequencies between the Beijing and the Guangzhou populations except forC7 *4. TheC7 *4 frequency was shown to be significantly higher in Beijing than in Guangzhou. No significant positive association between C6 and C7 alleles was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01870757
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    Paper (German National Licenses)
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  • 5
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    Current-driven domain wall motion enhanced by the microwave field (2014)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2014-07-11
    Description: The magnetic domain wall (DW) motion driven by a spin-polarized current opens a new concept for memory and logic devices. However, the critical current density required to overcome the intrinsic and/or extrinsic pinning of DW remains too large for practical applications. Here, we show, by using micromagnetic simulations and analytical approaches, that the application of a microwave field offers an effective solution to this problem. When a transverse microwave field is applied, the adiabatic spin-transfer torque (STT) alone can sustain a steady-state DW motion without the sign of Walker breakdown, meaning that the intrinsic pinning disappears. The extrinsic pinning can also be effectively reduced. Moreover, the DW velocity is increased greatly for the microwave-assisted DW motion. This provides a new way to manipulate the DW motion at low current densities.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
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