Dynamic Evolution of Pyramid Structures during Growth of Epitaxial Fe<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>(</mml:mo></mml:math>001<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>)</mml:mo></mml:math>Films

Thürmer, Konrad; Koch, R.; Weber, M.; Rieder, K. H.

doi:10.1103/physrevlett.75.1767

Cited by 163 publications

(85 citation statements)

References 16 publications

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“…6 A more detailed comparison between the two systems is complicated by the As out-diffusion in the latter case, 5,6 which is likely to influence the surface diffusion, and the lack of surface chemical data to complement the STM structural data for the Fe/MgO͑001͒ system. 16 Whereas STM shows marked differences in Fe island nucleation, corresponding PED data reveal that the local atomic structure and subsequent growth more appear to be quite similar for the two reconstructions. From forwardscattering PED measurements of Fe/GaAs͑001͒-2ϫ4 with thicknesses ranging from 0.25 to 4 ML it was concluded that the growth mode is predominantly layer-by-layer, with monolayer roughness.…”

Section: Figmentioning

confidence: 99%

“…16 Our STM images show that the surface of a 35 ML ͑ϳ50 Å͒ Fe film ͑the highest coverage studied͒ grown at 175°C on the GaAs͑001͒-2ϫ4 surface has a height variation of only 2 ML ͑ϳ3 Å͒. 6 A more detailed comparison between the two systems is complicated by the As out-diffusion in the latter case, 5,6 which is likely to influence the surface diffusion, and the lack of surface chemical data to complement the STM structural data for the Fe/MgO͑001͒ system.…”

Section: Figmentioning

confidence: 99%

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Influence of substrate surface reconstruction on the growth and magnetic properties of Fe on GaAs(001)

et al. 1997

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We have studied the magnetic and structural properties of epitaxial bcc Fe͑001͒ films grown at 175°C on molecular-beam epitaxy-prepared GaAs͑001͒-2ϫ4 and -c(4ϫ4) reconstructed surfaces, with film thicknesses ranging up to ϳ30 ML ͑ϳ43 Å͒. We present measurements of the thickness-dependent evolution of the magnetic properties of the Fe films as determined by in situ magneto-optic Kerr effect. We find that the magnetic properties and growth mode are similar for both 2ϫ4 and c(4ϫ4) reconstructions, although the initial adsorption sites and island nucleation as measured by scanning tunneling microscopy are clearly dominated by the substrate surface reconstruction. The onset of room-temperature ferromagnetism occurs at 6 ML for growth on both GaAs surface reconstructions. At this coverage, the measured Curie temperature ͑ϳ100°C͒ is significantly reduced from that of bulk ␣-Fe ͑770°C͒. The anisotropy is dominated by a uniaxial component such that the two ͗110͘ axes are inequivalent for all coverages studied. Shape anisotropy does not appear to play a significant role. ͓S0163-1829͑97͒08037-5͔

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Section: Figmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

Influence of substrate surface reconstruction on the growth and magnetic properties of Fe on GaAs(001)

et al. 1997

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“…(2.12). Thus a realistic U (M) may only have a discrete set of minima; and for the hexagonal symmetry (111) crystal surfaces the local potential has the symmetry property 13) hence U (M) must have (at least) six minima corresponding to six preferred facet orientations that may appear in the growth process -cf. Fig.…”

Section: Here V Vs (H) = −V Vs (−H) = [V(h)−v(−h)]/2 and V Va (H) = Vmentioning

confidence: 99%

“…(4.1). In this approach [27], let us recall the interface is described by its height evolution equation that is generally of the form 13) where the local interface height velocity v(h) is expressed as the sum of v VS (h) = −v VS (−h) and v VA (h) = v VA (−h) -i.e. its odd and even parts, respectively.…”

Section: Deciphering the Role Of Vertical Growth Asymmetrymentioning

confidence: 99%

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Interface Dynamics and Far-From-Equilibrium Phase Transitions in Multilayer Epitaxial Growth and Erosion on Crystal Surfaces: Continuum Theory Insights

Golubović

Levandovsky

Moldovan

2011

East Asian J. Appl. Math.

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Abstract. We review recent theoretical progress in the physical understanding of far-from-equilibrium phenomena seen experimentally in epitaxial growth and erosion on crystal surfaces. The formation and dynamics of various interface structures (pyramids, ripples, etc.), and also kinetic phase transitions observed between these structures, can all be understood within a simple continuum model based on the mass conservation law and respecting the symmetries of the growing crystal surface. In particular, theoretical predictions and experimental results are compared for (001), (110) and (111) crystal surfaces. 81.15.Aa, 89.75.Kd, 05.90.+m PACS (2006):

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Infrared spectroscopic study of the CO‐mediated decrease of the percolation threshold during the growth of ultrathin metal films on MgO(001)

Lust

Priebe

Fahsold

et al. 2002

Surface & Interface Analysis

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Metals are known to grow three-dimensionally on clean ionic crystal surfaces with low surface energies. As a consequence, the naturally grown films consist of islands and are non-conductive up to the percolation threshold, which is at ∼1 nm for iron films grown on MgO(001) at room temperature and is much larger for noble metals and higher temperatures, respectively. In this paper we show that CO exposure at ∼10 −8 mbar during deposition modifies the growth on MgO(001) for iron and copper. The development of infrared transmission spectra versus metal film thickness clearly is changed by CO exposure. The spectral differences correspond to a significant percolation threshold decrease induced by CO. Infrared conductivity parameters calculated from transmittance spectra indicate that the surface relaxation of the free charge carriers is decreased due to CO exposure during growth but the plasma frequency is unchanged.

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Dynamic Evolution of Pyramid Structures during Growth of Epitaxial Fe(001)Films

Cited by 163 publications

References 16 publications

Influence of substrate surface reconstruction on the growth and magnetic properties of Fe on GaAs(001)

Influence of substrate surface reconstruction on the growth and magnetic properties of Fe on GaAs(001)

Interface Dynamics and Far-From-Equilibrium Phase Transitions in Multilayer Epitaxial Growth and Erosion on Crystal Surfaces: Continuum Theory Insights

Infrared spectroscopic study of the CO‐mediated decrease of the percolation threshold during the growth of ultrathin metal films on MgO(001)

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