Amorphous metallic alloys

Золотухин, И. В.; Kalinin, Yu. E.

doi:10.1070/pu1990v033n09abeh002628

Cited by 32 publications

(9 citation statements)

References 3 publications

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“…5) were interpreted as broadened ε(E) for a-C:H. At the highest laser intensity (7.1 MW/cm 2 ) the effective dielectric function was modelled by glassy carbon [18] with increased density. It should be noted that glass-like materials are usually formed [19] at the laser irradiation with pulses of 10 −7 s duration and 10 MW/cm 2 intensity. As a whole, the interpretation of ellipsometric data is in a good agreement with the model of laser-induced graphitization [20] and structural changes [21] of DLC films under laser irradiation.…”

Section: Spectroscopic Ellipsometrymentioning

confidence: 99%

Modification of amorphous a-C:H films by laser irradiation

Grigonis¹

2007

Lithuanian J. Phys.

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Amorphous diamond-like hydrogenated carbon films a-C:H were formed on Si wafers by a direct ion beam deposition method from acetylene or a gas mixture of acetylene and hydrogen. The samples were irradiated in a scanning mode by second harmonic (wavelength λ = 532 nm) of a Q-switched YAG : Nd laser. The effect of laser irradiation was studied by Raman and infrared spectroscopy and spectroscopic ellipsometry. The changes in the optical spectra of the samples with different H amount were investigated in the dependence on laser intensity. Experimental data were interpreted taking into account the structural transformations of a-C:H films.

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Section: Spectroscopic Ellipsometrymentioning

confidence: 99%

Modification of amorphous a-C:H films by laser irradiation

Grigonis¹

2007

Lithuanian J. Phys.

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“…This is a similar result to that obtained by Sharma et al for AlN samples made at room temperature by reactive ion beam sputter deposition 15 . The formation of a non-crystalline structure can be explained by the lack of activation energy to drive the sputtered atoms into a crystalline configuration at room temperature 16 . In contrast, it has been shown 15 that crystalline structures will generally be achieved if a material is deposited onto a heated substrate.…”

Section: Structure and Elemental Compositionmentioning

confidence: 99%

Optical properties of refractory TiN, AlN and (Ti,Al)N coatings

et al. 2015

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Titanium nitride is a golden-colored semiconductor with metallic optical properties. It is already widely used in room temperature spectrally-selective coatings. In contrast, aluminum nitride is a relatively wide-band gap, non-metallic material. Both nitrides have exceptional thermal stability, to over 1000 °C, but are susceptible to oxidation. We will show here that composite coatings consisting of these materials and their complex oxides have considerable potential for spectrally-selective applications, including at elevated temperatures. In particular, we examine the metastable materials produced by magnetron sputtering. The effective dielectric functions of these materials can be tuned over a wide range by manipulation of their microstructure. This provides a strategy to assemble materials with tunable dielectric functions using a 'bottom-up' approach. The results are compared to those achievable by conventional, 'top-down', planar optical stacks comprised of alternating layers of TiN x and AlN.

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“…At present the synthesis and study of nanostructured materials are of high scientific and practical interest because they exhibit properties that are substantially different from the properties of single-crystal or bulk polycrystalline samples [1][2][3]. The development of new methods for the formation of nanostructured materials and the study of the effect of size effects (nanostructuring) on properties of the material is a topical problem.…”

Section: Introductionmentioning

confidence: 99%