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相关论文: Diffusion processes in germanium and silicon films…

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Enhanced diffusion of gold atoms into silicon substrate has been studied in Au thin films of various thicknesses (2.0, 5.3, 10.9 and 27.5 nm) deposited on Si(111) and followed by irradiation with 1.5 MeV Au2+ at a flux of 6.3x10^12 ions…

材料科学 · 物理学 2009-11-13 J. Ghatak , B. Sundaravel , K. G. M. Nair , P. V. Satyam

We report on sexithiophene films, about 150nm thick, grown by thermal evaporation on single crystal oxides and, as comparison, on Si/SiO2. By heating the entire deposition chamber at 100 C we obtain standing-up oriented molecules all over…

材料科学 · 物理学 2015-05-13 Carmela Aruta , Pasquale D'Angelo , Mario Barra , Giovanni Ausanio , Antonio Cassinese

The epitaxial growth conditions for silicon on germanium substrates were investigated as a function of growth temperature and monolayer coverage. Island formation was observed for the hole studied temperature range, although strong alloying…

材料科学 · 物理学 2009-11-11 D. Pachinger , H. Lichtenberger und F. Schaeffler

Germanosilicides, especially those formed on compressive substrates, are less stable than silicides against agglomeration. By studying the solid-state reaction of Ni thin film on strained Si0.8Ge0.2(001), we show that nickel germanosilicide…

材料科学 · 物理学 2007-05-23 H. B. Yao , M. Bouville , D. Z. Chi , H. P. Sun , X. Q. Pan , D. J. Srolovitz , D. Mangelinck

Heteroepitaxial growth of selected group IV-VI nitrides on various orientations of sapphire (\alpha-Al2O3) is demonstrated using atomic layer deposition. High quality, epitaxial films are produced at significantly lower temperatures than…

Theoretical studies have shown that new physical properties such as tunable gap openings or quantum spinHall effects could be expected from group-IV graphene analogs (silicene, germanene, stanene). While therehave been numerous studies of…

材料科学 · 物理学 2020-11-26 Kai Zhang , Romain Bernard , Yves Borensztein , Hervé Cruguel , Geoffroy Prévot

We report the growth, structural and magnetic properties of the less studied Eu-oxide phase, Eu$_3$O$_4$, thin films grown on a Si/SiO$_2$ substrate and Si/SiO$_2$/graphene using molecular beam epitaxy. The X-ray diffraction scans show that…

材料科学 · 物理学 2021-07-23 R. O. M. Aboljadayel , A. Ionescu , O. J. Burton , G. Cheglakov , S. Hofmann , C. H. W. Barnes

A 2D layer of spherical, crystalline Ge nanodots embedded in SiO2 was formed by low pressure chemical vapour deposition combined with furnace oxidation and rapid thermal annealing. The samples were characterized structurally by using…

材料科学 · 物理学 2008-12-31 Andrei G. Novikau , Peter I. Gaiduk

A metal-oxide film can be used as a hydrogen-isotope permeation barrier in the fuel circulation system for nuclear fusion. We fabricated Er$_2$O$_3$ thin film on a type 316L stainless-steel substrate by using a metal-organic chemical vapor…

应用物理 · 物理学 2020-01-08 Halim Choi , Y. H. Shin , Yongmin Kim

Cuprous oxide (Cu2O) films from 25 nm to 1500 nm were electrodeposited on n-Si(100) and Ni/n-Si(100) substrates from aqueous solution at room temperature. X-ray diffraction and transmission electron microscopy imaging show that the Cu2O…

We have studied initial growth of Sn atoms on Ge(001) surfaces at room temperature and 80 K by scanning tunneling microscopy. For Sn deposition onto the Ge(001) substrate at room temperature, the Sn atoms form two kinds of one-dimensional…

材料科学 · 物理学 2007-05-23 K. Tomatsu , K. Nakatsuji , T. Iimori , F. Komori

A theoretical investigation of the microscopic mechanisms provided the transient enhanced diffusion of boron atoms during rapid thermal annealing of silicon substrates doped by high fluence ion implantation was carried out. To compare the…

介观与纳米尺度物理 · 物理学 2010-07-23 O. I. Velichko , A. A. Hundoryna

Germanium (Ge), the next-in-line group-IV material, bears great potential to add functionality and performance to next-generation nanoelectronics and solid-state quantum transport based on silicon (Si) technology. Here, we investigate the…

Theoretical investigation is conducted of high-order harmonic generation (HHG) in silicon thin films to elucidate the effect of light propagation in reflected and transmitted waves. The first-principles simulations are performed of the…

材料科学 · 物理学 2023-01-23 Shunsuke Yamada , Tomohito Otobe , David Freeman , Anatoli Kheifets , Kazuhiro Yabana

Molecular beam epitaxy of Fe3Si on GaAs(001) is studied in situ by grazing incidence x-ray diffraction. Layer-by-layer growth of Fe3Si films is observed at a low growth rate and substrate temperatures near 200 degrees Celsius. A damping of…

In the present study we report on properties of ZnCoO films grown at relatively low temperature by the Atomic Layer Deposition, using two reactive organic zinc precursors (dimethylzinc and diethylzinc). The use of these precursors allowed…

Group IV semiconductor alloys and heterostructures such as SiGe, GeSn, Ge/Si and SiGe:C have been widely used and under extensive research for applications in major microelectronic and photonic devices. In the growth and processing of these…

材料科学 · 物理学 2019-08-02 Guangrui , Xia

Molecular hydrogen is a fascinating candidate for quantum fluid showing bosonic and fermionic superfluidity. We have studied diffusion dynamics of thin films of H$_2$, HD and D$_2$ adsorbed on a glass substrate by measurements of…

强关联电子 · 物理学 2019-12-18 Takahiko Makiuchi , Katsuyuki Yamashita , Michihiro Tagai , Yusuke Nago , Keiya Shirahama

Germanium thin films are an excellent candidate for use as a low-loss dielectric in superconducting microwave resonators, a low-loss inter-layer metal wiring dielectric, and passivation layers in microwave and Josephson junction devices. In…

超导电性 · 物理学 2021-04-27 C. Kopas , S. Zhang , J. Gonzales , D. R. Queen , B. Wagner , R. W. Carpenter , N. Newman

The growth mechanisms of MgB2 films obtained by different methods on various substrates are compared via a detailed cross-sectional scanning electron microscopy (SEM) study. The analyzed films include (a) samples obtained by an ex-situ…