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MBE grown

Magnetic anisotropy terms in [110] MBE grown REFe2 films involving the strain term ???

Magnetic anisotropy terms in [110] MBE grown REFe2 films involving the strain term ???

... However, there are important difference between MBE-grown films and their free-standing equivalents. Mougin et al (2000) have shown that MBE-grown films exhibit a strain term, frozen-in during ...

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Structural, electronic, and magnetic investigation of magnetic ordering in MBE grown CrxSb2 xTe3 thin films

Structural, electronic, and magnetic investigation of magnetic ordering in MBE grown CrxSb2 xTe3 thin films

... It is clear from the measured diffraction spectra (fig. 3) that the grown films are well ordered, with the c -axis par- allel to the surface normal of the sample. For increas- ing Cr doping concentration a reduction ...

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Phase Formation and Structural Sequence of
Highly Oriented MBE Grown NiTiCu Shape Memory Thin Films

Phase Formation and Structural Sequence of Highly Oriented MBE Grown NiTiCu Shape Memory Thin Films

... We present a study demonstrating the capability for controlled shape memory thin film growth using molecular beam epitaxy. Here, NiTiCu alloy films were grown which are known to exhibit the martensitic ...

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MBE grown GaAsBi/GaAs multiple quantum well structures : structural and optical characterization

MBE grown GaAsBi/GaAs multiple quantum well structures : structural and optical characterization

... It seems likely that a relaxation event has occurred in QW54 and QW63 from the XRD and Nomarski measurements and the calcu- lated redshift associated with the complete relaxation of strain in the other MQWs is suf fi ...

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Hole density and acceptor type defects in MBE grown GaSb1 x Bi x

Hole density and acceptor type defects in MBE grown GaSb1 x Bi x

... an increase in the concentration of acceptor-type defects in the layers. The reason for the increased defect concentration in the layers can be related to the growth conditions. However, changes in the band structure can ...

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Improving the emission efficiency of MBE grown GaN/AlN QDs by strain control

Improving the emission efficiency of MBE grown GaN/AlN QDs by strain control

... The quantum-confined stark effect induced by polarization has significant effects on the optical properties of nitride heterostructures. In order to improve the emission efficiency of GaN/AlN quantum dots [QDs], a novel ...

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Composition and luminescence of AlInGaN layers grown by plasma-assisted molecular beam epitaxy

Composition and luminescence of AlInGaN layers grown by plasma-assisted molecular beam epitaxy

... demonstrate a small but discernible tendency for the GaN fraction to reduce more rapidly than that of AlN as the InN fraction increases. This is surprising in the face of the ex- pected unity sticking coefficients for Ga ...

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The MBE growth and electrical characterisation of high resolution doped Si/GeSi structures

The MBE growth and electrical characterisation of high resolution doped Si/GeSi structures

... World record mobilities in strained SiGe channel MBE-grown normal structures are obtained through the use of very high substrate temperatures during growth whilst reducing the Ge concent[r] ...

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Optical Constants for MBE n Type GaAs Films Doped by Si or Te between 1 50 4 75 eV

Optical Constants for MBE n Type GaAs Films Doped by Si or Te between 1 50 4 75 eV

... for MBE-grown n-type GaAs films the spectral dependence of the complex re- fractive index N = n + ik =ε 1/2 and, therefore, complex di- electric function ...

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Organizational Accessibility and Community Connections: Examining Changes in the Spatial Proximity of Pubic Housing Residents to Social Service Providers and Providers' Responses to Redevelopment

Organizational Accessibility and Community Connections: Examining Changes in the Spatial Proximity of Pubic Housing Residents to Social Service Providers and Providers' Responses to Redevelopment

... InN grown by MBE, MOCVD, and ...(MBE grown and Remote Plasma Assisted Chemical vapor deposition (RPECVD)) suggests these films should not to be treated as homogenous ...samples grown by ...

216

Electrical characterisation of deep level defects in Be doped AlGaAs grown on (100) and (311)A GaAs substrates by MBE

Electrical characterisation of deep level defects in Be doped AlGaAs grown on (100) and (311)A GaAs substrates by MBE

... epitaxially grown semiconductor ...[3] grown on high index GaAs substrates have been studied extensively using Hall, photoluminescence and photothermal ionisation ...epitaxy grown AlGaAs ...in ...

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Raman spectra of p type transparent semiconducting Cr2O3:Mg

Raman spectra of p type transparent semiconducting Cr<inf>2</inf>O<inf>3</inf>:Mg

... been grown from metallic targets at the highest oxygen partial pressure available in the instrument, the change could be caused by a lack of oxygen in the ...

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Growth of InAs Quantum Dots on Germanium Substrate Using Metal Organic Chemical Vapor Deposition Technique

Growth of InAs Quantum Dots on Germanium Substrate Using Metal Organic Chemical Vapor Deposition Technique

... Abstract Self-assembled InAs quantum dots (QDs) were grown on germanium substrates by metal organic chemical vapor deposition technique. Effects of growth temperature and InAs coverage on the size, density, and ...

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Zinc-blende and wurtzite AlxGa1-xN bulk crystals grown by molecular beam epitaxy

Zinc-blende and wurtzite AlxGa1-xN bulk crystals grown by molecular beam epitaxy

... The group III-nitrides normally crystallise in the wurtzite structure, which has a hexagonal symmetry. High quality bulk wurtzite (hexagonal) GaN substrates can be grown from liquid Ga solutions. However, the ...

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Supersonic jet epitaxy of gallium nitride using triethylgallium and ammonia

Supersonic jet epitaxy of gallium nitride using triethylgallium and ammonia

... were grown on GaN 共 0001 兲 /AlN/6H–SiC composite substrates at 700– 780 °C by supersonic jet epitaxy using triethylgallium 共 TEG 兲 and NH 3 ...films grown using TEG seeded in He and a constant NH 3 /TEG ...

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Microstructure of non polar GaN on LiGaO2 grown by plasma assisted MBE

Microstructure of non polar GaN on LiGaO2 grown by plasma assisted MBE

... The plan view TEM sample of the M -plane GaN film allows for an estimate of the density of threading dislo- cations and stacking faults. A centered dark field image of one region of the plan view sample is seen in Figure ...

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Tailoring of polar and nonpolar ZnO planes on MgO (001) substrates through molecular beam epitaxy

Tailoring of polar and nonpolar ZnO planes on MgO (001) substrates through molecular beam epitaxy

... wurtzite phase. In addition, the polar ZnO film struc- ture was composed of two domains with a rotation angle of 30°. AFM images showed that the roughness of the thin film surface changed with the substrate temperature ...

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Electrical properties of surface and interface layers of the N  and In polar undoped and Mg doped InN layers grown by PA MBE

Electrical properties of surface and interface layers of the N and In polar undoped and Mg doped InN layers grown by PA MBE

... films grown by plasma-assisted molecular beam epitaxy (PA MBE) in different laboratories, and to reveal their role on the total InN conductivity in dependence on the InN film lattice polarity, the Mg ...

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Submonolayer InGaAs/GaAs quantum dot solar cells

Submonolayer InGaAs/GaAs quantum dot solar cells

... contact layer, as schematically shown in Fig. 1. SML QDs, QWs, and GaAs bulk material were grown in the intrinsic region for SML QDSC, QWSC, and GaAs reference cell, respectively. The intrinsic region of SML QDSC ...

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Study of InN epitaxial films and nanorods grown on GaN template by RF MOMBE

Study of InN epitaxial films and nanorods grown on GaN template by RF MOMBE

... However, few studies were reported about InN films growth using RF-MOMBE. MOCVD, plasma-assisted molecular beam epitaxy (PA-MBE), and metalorganic vapor phase epitaxy are the widely used techniques in InN ...

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