RHEED observation and ARUPS study of Ni on Mo(110) surface

Tsunematsu, Hiroshi; Aita, Mika; Tanaka, Akinori; Suzuki, Shoji; Satō, Shigeru; Gotoh, Y.

doi:10.1016/s0368-2048(98)00488-5

Cited by 9 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, an experimental study combining simultaneous surface X-ray diffraction and stress measurements has demonstrated that a considerable rearrangement of the W(110) surface atoms takes place upon deposition of the Ni(111) overlayer [10]. Like the Ni/W(110) system, Ni/Mo(110) grows in the Nishiyama-Wassermann epitaxial orientation [11] and also undergoes a (1 × 1) → (8 × 1) → (7 × 1) series of structural transitions for submonolayer coverage at room temperature [12][13][14]. The growth proceeds in a layer-by-layer fashion at 115 K and 300 K, with agglomeration into three-dimensional clusters and alloying occurring upon annealing above 600 K [12,15].…”

Section: Introductionmentioning

confidence: 99%

Morphology of Ni ultrathin films on Mo(110) and W(100) studied by LEED and STM

2007

View full text Add to dashboard Cite

The morphology of ultrathin Ni films on Mo(110) and W(100) has been studied by low-energy electron diffraction and scanning tunneling microscopy. Ni films grow pseudomorphically on Mo(110) at 300 K for a coverage of 0.15 ML. A (8 × 1) structure is found at 0.4 ML, which develops into a (7×1) structure by 0.8 ML as the film undergoes a structural change to fcc Ni(111) at 6 ML. The growth mode switches from layer-by-layer to Stranski-Krastanov between 4 ML and 6 ML. Annealing at around 850 K results in alloying of submonolayer films with the substrate, while for higher coverages the Ni agglomerates into nanowedge islands. Ni films grow pseudomorphically on W(100) up to a coverage of around 2 ML at 300 K, above which there is a structural change from bcc to hcp Ni with the epitaxial relationship (1120) N i || (100) W . This is accompanied by the formation of orthogonal domains of uniaxial strain-relieving dislocations from the third layer of the film. For coverages up to 1 ML the growth proceeds by formation of two-dimensional islands, but shifts to three-dimensional growth by 2 ML with rectangular islands aligned along the 011 substrate directions. Annealing at around 550 K results in agglomeration of Ni into larger islands and increasing film roughness.

show abstract

Section: Introductionmentioning

confidence: 99%

Morphology of Ni ultrathin films on Mo(110) and W(100) studied by LEED and STM

2007

View full text Add to dashboard Cite

show abstract

“…There are many investigations about the interface between face-centered cubic (fcc) metals and body-centered cubic (bcc) metals in order to clarify the mechanism of epitaxial orientation relationships [1][2][3][4]10]. When the thickness of deposited fcc metals is less than 1 ML, fcc metals form superstructures on a bcc(1 1 0) surface because of strong interaction with bcc substrate atoms.…”

Section: Introductionmentioning

confidence: 99%

Surface structures of Mg on Mo(110) surface investigated by RHEED

Tamori¹,

Kawanowa²,

Gotoh³

2007

Surface Science

View full text Add to dashboard Cite

The surface structures and the growth mode of Mg deposited on Mo(1 1 0) surface have been investigated using a molecular beam epitaxy system with a reflection high-energy electron diffraction. The surface phase diagram of Mg on the Mo(1 1 0) substrate for deposition thickness versus substrate temperature was completed. Three kinds of surface structures, a, b, and c were observed in the range of 0.1 ML $ 4.0 ML. These surface structures are commensurate with the atomic arrangement of the Mo(1 1 0) plane. The dense direction of each structure is parallel to the [0 0 1]Mo orientation and the Mg atoms are commensurate every five, four and six Mo atoms in ½1 1 1Mo orientation in a, b and c structure, respectively. Moreover, the b structure has the same arrangement of a bcc(1 1 0) plane rotated by 54.7°from the Mo(1 1 0) plane with elongation by 1.17 times. The d structure, which is three-dimensional crystallites of Mg in initial stage of crystal growth, was observed at the thickness more than 4.0 ML below 200°C. From this pattern it was found that the crystallites of Mg have a specific epitaxial orientation relationship for the Mo(1 1 0) substrate, ½1 1 0 0Mgk½1 1 0Mo and (0 0 0 1)Mgk(1 1 0)Mo, and Mg film grows by Stranski-Krastanov growth mode.

show abstract

“…The growth of 3d metals on refractory metal surfaces at submonolayer to multilayer coverage has been quite extensively studied in recent decades [12][13][14][15][16]. In almost all reported cases the layer-by-layer growth mode occurs at least up to 3-5 ML.…”

mentioning

confidence: 99%

Variation of adatom to substrate charge transfer value along the first-row transition metal series on Mo(110)

Магкоев

Christmann

Lecante

et al. 2002

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Adsorption of the first-row transition 3d metals (Ti-Cu) on the atomically clean Mo(110) surface in ultra-high-vacuum conditions has been studied by Auger electron spectroscopy and work function measurements (Anderson method). In this letter it is shown that adsorption behaviour of the metals under consideration systematically changes along the 3d series. The observed correlation between the systematic change of the dipole moments and the values of the charge transfer from adatom to substrate along the period leads us to the conclusion that the metal 3d orbitals play an important role in the formation of the chemisorption bond.

show abstract

RHEED observation and ARUPS study of Ni on Mo(110) surface

Cited by 9 publications

References 8 publications

Morphology of Ni ultrathin films on Mo(110) and W(100) studied by LEED and STM

Morphology of Ni ultrathin films on Mo(110) and W(100) studied by LEED and STM

Surface structures of Mg on Mo(110) surface investigated by RHEED

Variation of adatom to substrate charge transfer value along the first-row transition metal series on Mo(110)

Contact Info

Product

Resources

About