Details
| Original language | English |
|---|---|
| Pages (from-to) | 1148-1152 |
| Number of pages | 5 |
| Journal | Fizika Nizkikh Temperatur (Kharkov) |
| Volume | 27 |
| Issue number | 9-10 |
| Publication status | Published - Sept 2001 |
Abstract
Annealing-driven irreversible structural transitions are studied by low energy electron diffraction in submonolayer Dy films adsorbed on the Mo(112) surface. In a wide coverage range θ > 0.07, Dy overlayers deposited at low temperatures (T ≈ 100 K) are ordered and keep their structure upon annealing up to 350-600 K. Near θ = 0.68, the overlayers are stable to high-temperature annealing (Ta = 1000 K) as well, whereas the denser films are metastable and transform to more stable ordered structures. An unusual annealing effect is found for θ < 0.58: the initially ordered metastable phases are replaced by phases having no extended order, which are assumed to be two-dimensional glasses.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Fizika Nizkikh Temperatur (Kharkov), Vol. 27, No. 9-10, 09.2001, p. 1148-1152.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A vitrifying structure transition in the Dy/Mo(112) adsorption system
AU - Fedorus, A.
AU - Koval, V.
AU - Naumovets, A.
AU - Pfnür, H.
PY - 2001/9
Y1 - 2001/9
N2 - Annealing-driven irreversible structural transitions are studied by low energy electron diffraction in submonolayer Dy films adsorbed on the Mo(112) surface. In a wide coverage range θ > 0.07, Dy overlayers deposited at low temperatures (T ≈ 100 K) are ordered and keep their structure upon annealing up to 350-600 K. Near θ = 0.68, the overlayers are stable to high-temperature annealing (Ta = 1000 K) as well, whereas the denser films are metastable and transform to more stable ordered structures. An unusual annealing effect is found for θ < 0.58: the initially ordered metastable phases are replaced by phases having no extended order, which are assumed to be two-dimensional glasses.
AB - Annealing-driven irreversible structural transitions are studied by low energy electron diffraction in submonolayer Dy films adsorbed on the Mo(112) surface. In a wide coverage range θ > 0.07, Dy overlayers deposited at low temperatures (T ≈ 100 K) are ordered and keep their structure upon annealing up to 350-600 K. Near θ = 0.68, the overlayers are stable to high-temperature annealing (Ta = 1000 K) as well, whereas the denser films are metastable and transform to more stable ordered structures. An unusual annealing effect is found for θ < 0.58: the initially ordered metastable phases are replaced by phases having no extended order, which are assumed to be two-dimensional glasses.
UR - http://www.scopus.com/inward/record.url?scp=0035440219&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035440219
VL - 27
SP - 1148
EP - 1152
JO - Fizika Nizkikh Temperatur (Kharkov)
JF - Fizika Nizkikh Temperatur (Kharkov)
SN - 0132-6414
IS - 9-10
ER -