Anomalous X-Ray Scattering On Self-Assembled Islands: Direct Evaluation Of Composition Profile, Strain Relaxation, And Elastic Energy

2002 ◽  
Vol 737 ◽  
Author(s):  
A. Malachias ◽  
R. Magalhães-Paniago ◽  
G. Medeiros-Ribeiro ◽  
S. Kycia ◽  
T.I. Kamins ◽  
...  
Keyword(s):  
Elastic Energy ◽  
Strain Relaxation ◽  
Lattice Parameter ◽  
Direct Evaluation ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Temperature Rate ◽  
Ray Scattering

ABSTRACTThe growth of Ge on Si(001) produces a wealth of morphologies of nanocrystals. After the deposition of a two-dimensional Ge film 3.5 monolayers thick, islands are formed, and several shape transitions can be observed depending on the growth temperature, rate and deposited thickness. In this work we combine atomic force microscopy and two different types of measurements of anomalous x-ray scattering to determine this elastic energy both in pyramid and dome shaped islands. By comparing pyramids and domes data, we have observed both an increase of lattice parameter and enhancement of interdiffusion for the domes. These results show that there is a drastic decrease of the elastic energy stored per atom upon this particular shape transition.

In situ X-ray Scattering Study of the Formation of Au Nano Crystals During Thermal Annealing

2007 ◽  
Vol 1027 ◽  
Author(s):  
Do Young Noh ◽  
Ki-Hyun Ryu ◽  
Hyon Chol Kang
Keyword(s):  
Thermal Annealing ◽  
Bragg Reflection ◽  
Ex Situ ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Au Thin Films ◽  
Ray Scattering

AbstractThe transformation of Au thin films grown on sapphire (0001) substrates into nano crystals during thermal annealing was investigated by in situ synchrotron x-ray scattering and ex situ atomic force microscopy (AFM). By monitoring the Au(111) Bragg reflection and the low Q reflectivity and comparing them with ex situ AFM images, we found that polygonal-shape holes were nucleated and grow initially. As the holes grow larger and contact each other, their boundary turns into Au nano crystals. The Au nano crystals have a well-defined (111) flat top surface and facets in the in-plane direction.

Comparative study of the roughness of optical surfaces and thin films by use of x-ray scattering and atomic force microscopy

1999 ◽  
Vol 38 (4) ◽  
pp. 684 ◽  
Author(s):  
Victor E. Asadchikov ◽  
Angela Duparré ◽  
Stefan Jakobs ◽  
Albert Yu. Karabekov ◽  
Igor V. Kozhevnikov ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Force Microscopy ◽  
Comparative Study ◽  
X Ray ◽  
Force Microscopy ◽  
Optical Surfaces ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Ray Scattering

The surface roughness investigation by the atomic force microscopy, x-ray scattering, and light scattering

2006 ◽  
Author(s):  
M. L. Zanaveskin ◽  
Yu. V. Grishchenko ◽  
A. L. Tolstikhina ◽  
V. E. Asadchikov ◽  
B. S. Roshchin ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Atomic Force Microscopy ◽  
Light Scattering ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Ray Scattering

Microstructure Determination of AOT + Phenol Organogels Utilizing Small-Angle X-ray Scattering and Atomic Force Microscopy

2001 ◽  
Vol 123 (10) ◽  
pp. 2414-2421 ◽  
Author(s):  
Blake A. Simmons ◽  
Chad E. Taylor ◽  
Forrest A. Landis ◽  
Vijay T. John ◽  
Gary L. McPherson ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Small Angle ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Ray Scattering
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