Ferromagnetism induced by vacancies in (N, Al)-codoped 6H-SiC

Lin, Long; Zhu, Linghao; Zhao, Ruiqi; Tao, Hualong; Huang, Jingtao; Zhang, Zhanying

doi:10.1016/j.ssc.2018.11.009

Solid State Communications

2019

DOI: 10.1016/j.ssc.2018.11.009

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Ferromagnetism induced by vacancies in (N, Al)-codoped 6H-SiC

Long Lin

Linghao Zhu

Ruiqi Zhao

et al.

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Cited by 3 publications

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“…The SEM of the grain using the different size powders for growing 2 min: a) 500 nm; b) 50 μm; c) 175 μm.in the sublimated vapour were: Si, SiC 2 and Si 2 C[20]. The equilibrium partial pressures of Si, Si 2 C and SiC 2 were calculated at the different temperatures using[21]:…”

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confidence: 99%

FABRICATION OF HIGHLY DENSE PURE 6H-SiC CERAMICS VIA THE PVT METHOD USING SUB-MICRON SiC POWDERS

Liu¹

2020

Ceramics - Silikaty

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The dense SiC ceramics were prepared by the physical vapour transport (PVT) method using three types of SiC powder with different grain size, including a kind of SiC powder with a mean diameter of 500 nm. The effects of the grain size of the raw materials on the bulk density, bending strength and hardness of the SiC ceramics were studied. It was found that with a decreasing grain size, the bulk density and the bending strength of the fabricated SiC ceramics increased, while the Vickers hardness decreased. the effects of the grain size of the raw materials on the nucleation density and the growth rate of the SiC were analysed, and the growth characteristic of the SiC ceramics was systematically explored. The results indicated that the crystal type, the nucleation density and the growth rate were obviously affected by the soaking temperature. When the temperature was higher or lower than 2200 °C, the fabricated ceramics was composed of a 6H-SiC polycrystalline or the mixture of a 6H-SiC and 3C-SiC polycrystalline. Meanwhile, with an increasing temperature, the nucleation density decreased and the growth rate increased. Obviously, by optimising the fabrication process, highly dense 6H-SiC ceramics with a bulk density of 3.07 g•cm-3 and a bending strength of 335.6 ± 10 MPa could be rapidly fabricated by the PVT method using the sub-micron SiC powder.

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confidence: 99%

FABRICATION OF HIGHLY DENSE PURE 6H-SiC CERAMICS VIA THE PVT METHOD USING SUB-MICRON SiC POWDERS

Liu¹

2020

Ceramics - Silikaty

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First-principles study of electronic structures and ferromagnetism in (Cr, X) (X= Ga, In) co-doped 4H–SiC

Lin

Xie

Zhu

et al. 2020

Solid State Communications

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Electronic structures and magnetic properties of (Cr, Fe) co-doped 3C-SiC

Lin¹,

Yao²,

Yu³

et al. 2019

Mater. Res. Express

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Ferromagnetism induced by vacancies in (N, Al)-codoped 6H-SiC

Cited by 3 publications

References 23 publications

FABRICATION OF HIGHLY DENSE PURE 6H-SiC CERAMICS VIA THE PVT METHOD USING SUB-MICRON SiC POWDERS

FABRICATION OF HIGHLY DENSE PURE 6H-SiC CERAMICS VIA THE PVT METHOD USING SUB-MICRON SiC POWDERS

First-principles study of electronic structures and ferromagnetism in (Cr, X) (X= Ga, In) co-doped 4H–SiC

Electronic structures and magnetic properties of (Cr, Fe) co-doped 3C-SiC

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