A new technique for decoration of cleavage and slip steps on ionic crystal surfaces

Bassett, G. A.

doi:10.1080/14786435808243246

Cited by 479 publications

(84 citation statements)

References 4 publications

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“…After drying, the cover-glass with specimen was heated in a vacuum of 10 -4 torr at ~400-500~ for 2-3 h. Heating the specimen gives a clearer surface and a higher mobility of Au, enabling selective nucleation of Au along the growth steps (Bassett, 1958;Tomura et al, 1979). Gold was flash-evaporated from a tungsten coil heater.…”

Section: Methodsmentioning

confidence: 99%

“…The growth step patterns of nanometer size in height were revealed using the gold-decoration technique and TEM, developed by Bassett (1958) and Gritsaenko & Samotoyin (1966). These examinations revealed spiral and parallel step patterns on the 001 crystal surfaces of various clay minerals, and their growth mechanisms and growth conditions were inferred (Tomura et al, 1979;Kitagawa et al, 1983).…”

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confidence: 99%

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Surface microtopography of rectorite (allevardite) from Allevard, France

Kitagawa

1997

Clay miner.

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By means of transmission electron microscopy (TEM) and the gold decoration technique, the surface microtopography of rectorite (allevardite) crystals collected from Allevard, France was investigated. On the crystal surfaces, gold decoration successfully revealed growth steps of ~20 ,~ in height. Only closed polygonal steps 20 ,~ high occur on the 001 surface of a thick platy crystal, although sl~iral growth patterns were not observed. Thick platy particles were easily split into thinner plates 20 A thick in distilled water by means of ultrasonic vibration. No step patterns were observed on the surfaces of these thin plates which correspond to the cleavage plane. The growth of this rectorite, therefore, seems to be controlled by a layer nucleation mechanism.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Surface microtopography of rectorite (allevardite) from Allevard, France

Kitagawa

1997

Clay miner.

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“…36 A thin carbon film with a thickness of ϳ10 nm was evaporated on the Pd/MgO͑001͒ surface in the same UHV chamber. Afterwards, the sample was extracted from the UHV chamber.…”

Section: A Sample Preparationmentioning

confidence: 99%

Imaging the real shape of nanoclusters in scanning force microscopy

Pakarinen

Barth

Foster

et al. 2008

Journal of Applied Physics

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A quantitative comparison between experiment and theory is given for the constant height mode imaging of metal nanoclusters in dynamic scanning force microscopy. We explain the fundamental mechanisms in the contrast formation with the help of the system Pd/MgO͑001͒. The comparison shows that the shape and size of nanoclusters are precisely imaged due to the sharpness of the tip's last nanometer. This quantitative comparison proves our previously proposed model for the contrast formation.

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“…In a model experiment, we have scratched surfaces of KBr crystals by bringing the tip into contact with the surface, scanning forth and back, and increasing the normal load on the tip until some atomic FIGURE 5 Lateral force maps acquired in contact mode around a scratch in a KBr(100) surface. a Overview showing one end of the scratch and the surrounding mounds.…”

Section: Scratches In Kbrmentioning

confidence: 99%

“…The difference between such measurements and the ideal atomic topography becomes evident when a local variation of forces is encountered, as we will discuss in the following paragraphs [4]. The surface structure of alkali halide crystals has been studied for several decades, starting with the classical replica imaging of step decoration by Bassett [5] or Bethge [6]. Steps emerging from dislocations after heating in a vacuum were imaged in order to study both the nature of dislocations and the evaporation process along monatomic steps.…”

Section: Introductionmentioning

confidence: 99%

Atomic Structure of Alkali Halide Surfaces

Bennewitz

Schär

Gnecco

et al. 2003

Advances in Solid State Physics

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The atomic structure of surfaces of alkali halide crystals has been revealed by means of high-resolution dynamic force microscopy. True atomic resolution is demonstrated both on steps surrounding islands or pits, and on a chemically mixed crystal. We have directly observed the enhanced interaction at low-coordinated sites by force microscopy. The growth of NaCl films on metal surfaces and radiation damage in a KBr surface is discussed based on force microscopy results. The damping of the tip oscillation in dynamic force microscopy might provide insight into dissipation processes on the atomic scale. Finally, we present atomically resolved images of wear debris found after scratching a KBr surface.PACS 68.37.Ps; 75.55.Fv

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A new technique for decoration of cleavage and slip steps on ionic crystal surfaces

Cited by 479 publications

References 4 publications

Surface microtopography of rectorite (allevardite) from Allevard, France

Surface microtopography of rectorite (allevardite) from Allevard, France

Imaging the real shape of nanoclusters in scanning force microscopy

Atomic Structure of Alkali Halide Surfaces

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