X-Ray studies on single crystal films of BaTiO3

1992 ◽  
Vol 137 (1) ◽  
pp. 33-38 ◽  
Author(s):  
H. Terauchi ◽  
Y. Watanabe ◽  
H. Kasatani ◽  
K. Kamigaki ◽  
T. Terashima ◽  
...  
Keyword(s):  
Single Crystal ◽  
X Ray ◽  
Single Crystal Films ◽  
Crystal Films

Molecular orientation in single crystal thin films of N-(4-nitrophenyl)-(L)-prolinol

1998 ◽  
Vol 13 (1) ◽  
pp. 131-134 ◽  
Author(s):  
Ligui Zhou ◽  
M. Thakur
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Single Crystal ◽  
Molecular Orientation ◽  
Second Harmonic ◽  
Substrate Surface ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Crystal Films ◽  
Crystal Films

Thin single crystal films of N-(4-nitrophenyl)-(L)-prolinol (NPP) were prepared using the modified shear method. The surface orientation of the single crystal films was determined by x-ray diffraction and was found to be [101]. Polarized microscopy showed uniform birefringence and complete extinction when the thin film was rotated under crossed polarization, implying single crystal thin films with uniform surface were obtained. The molecular orientation in the NPP thin film was studied by polarized UV-visible and polarized micro-FTIR spectroscopy along with x-ray diffraction. The orientation of the NPP molecules was found to be almost parallel to the plane of the film. This parallel orientation is because of the polar (hydrogen bonding) interaction of the −(OH) and the N=O groups of the NPP molecule with the hydrophilic substrate surface. The results of the second harmonic generation (SHG) measurements are consistent with such a molecular orientation. These results show that the final molecular and crystallographic orientation in the film is determined by its initial molecule-substrate interaction.

X-ray interference effects in thin equiatomic Co-Pt single crystal films

2004 ◽  
Vol 30 (1) ◽  
pp. 42-44
Author(s):  
P. D. Kim ◽  
S. V. Stolyar ◽  
R. S. Iskhakov ◽  
I. A. Turpanov ◽  
V. I. Yushkov ◽  
...  
Keyword(s):  
Single Crystal ◽  
Interference Effects ◽  
X Ray ◽  
Single Crystal Films ◽  
Crystal Films

Structure of Palladium Single-Crystal Films Prepared by Flash Evaporation onto (001) NaCl Substrates

1970 ◽  
Vol 28 ◽  
pp. 456-457
Author(s):  
L. E. Murr ◽  
G. Wong
Keyword(s):  
Single Crystal ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
High Rate ◽  
Flash Evaporation ◽  
Optimum Load ◽  
Single Crystal Films ◽  
Crystal Films ◽  
A Current

Palladium single-crystal films have been prepared by Matthews in ultra-high vacuum by evaporation onto (001) NaCl substrates cleaved in-situ, and maintained at ∼ 350° C. Murr has also produced large-grained and single-crystal Pd films by high-rate evaporation onto (001) NaCl air-cleaved substrates at 350°C. In the present work, very large (∼ 3cm2), continuous single-crystal films of Pd have been prepared by flash evaporation onto air-cleaved (001) NaCl substrates at temperatures at or below 250°C. Evaporation rates estimated to be ≧ 2000 Å/sec, were obtained by effectively short-circuiting 1 mil tungsten evaporation boats in a self-regulating system which maintained an optimum load current of approximately 90 amperes; corresponding to a current density through the boat of ∼ 4 × 104 amperes/cm2.

The P-H-T effects on the electric resistance and magnetoresistance of La0.7Sr0.1Pb0.2MnO3 single crystal films

2001 ◽  
Vol 27 (6) ◽  
pp. 451-453 ◽  
Author(s):  
S. S. Kucherenko ◽  
V. P. Pashchenko ◽  
P. I. Polyakov ◽  
S. I. Khartsev ◽  
V. A. Shtaba
Keyword(s):  
Single Crystal ◽  
Electric Resistance ◽  
Single Crystal Films ◽  
Crystal Films
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