scholarly journals Electron and lattice dynamics of transition metal thin films observed by ultrafast electron diffraction and transient optical measurements

2016 ◽  
Vol 3 (6) ◽  
pp. 064501 ◽  
Author(s):  
A. Nakamura ◽  
T. Shimojima ◽  
M. Nakano ◽  
Y. Iwasa ◽  
K. Ishizaka
Keyword(s):  
Thin Films ◽  
Electron Diffraction ◽  
Transition Metal ◽  
Lattice Dynamics ◽  
Optical Measurements ◽  
Ultrafast Electron Diffraction ◽  
Metal Thin Films

scholarly journals Nanoscale Transition Metal Thin Films: Growth Characteristics and Scaling Law for Interlayer Formation

2019 ◽  
Vol 11 (49) ◽  
pp. 46311-46326 ◽  
Author(s):  
Anirudhan Chandrasekaran ◽  
Robbert W. E. van de Kruijs ◽  
Jacobus M. Sturm ◽  
Andrey A. Zameshin ◽  
Fred Bijkerk
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Scaling Law ◽  
Growth Characteristics ◽  
Metal Thin Films

Anisotropic thermal conductivity of rare earth–transition metal thin films

1992 ◽  
Vol 7 (2) ◽  
pp. 329-334 ◽  
Author(s):  
L.J. Shaw-Klein ◽  
T.K. Hatwar ◽  
S.J. Burns ◽  
S.D. Jacobs ◽  
J.C. Lambropoulos
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Rare Earth ◽  
Transition Metal ◽  
Columnar Microstructure ◽  
Deposition Pressure ◽  
Metal Thin Films ◽  
Anisotropic Thermal Conductivity ◽  
Out Of Plane ◽  
Order Of Magnitude

Thermal conductivity measurements were performed on several amorphous rare earth transition metal thin films of varying microstructure. The thermal conductivity perpendicular to the plane of the film, measured by the thermal comparator method, was compared with the thermal conductivity value measured parallel to the plane of the film. The latter value was obtained by converting electrical conductivity values to thermal conductivity via the Wiedemann–Franz relationship. As expected, the columnar microstructure induced during the sputter deposition of the thin films causes an anisotropy in the thermal conductivity values, with the in-plane values consistently lower than the out-of-plane values. The effect is most pronounced for the more columnar films deposited at higher pressure, for which the in-plane thermal conductivity, 0.3 W/mK, is an order of magnitude lower than the out-of-plane thermal conductivity, 4.3 W/mK. The thermal conductivity out of the plane of the film decreased with increasing deposition pressure, due to the decreasing film density.

Transport Studies of Transition Metal Ion Doped ZnO: Bulk and Thin Films

2006 ◽  
Vol 957 ◽  
Author(s):  
Shubra Singh ◽  
N Rama ◽  
M.S. Ramachandra Rao
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Transition Metal ◽  
Metal Ion ◽  
Transition Metal Ions ◽  
Solubility Limit ◽  
Optical Measurements ◽  
Resistivity Measurements ◽  
Transport Studies ◽  
Doped Zno

ABSTRACTThe effect of doping of transition metal ions (Fe and Co) on transport properties of ZnO has been studied in both bulk and thin films. The solubility limit of these ions have been found to be higher in thin films compared to bulk. Optical measurements reveal the presence of Fe in both 2+ and 3+ state. Co is believed to be in 2+ states. Electrical resistivity measurements show that while for bulk Fe doped ZnO samples there is a decrease in resistivity compared to undoped ZnO, it increases for bulk Co doped ZnO samples. However, thin film samples of both types of doped compounds show a decrease in resistivity compared to undoped ZnO. This difference in bulk and thin film behaviour has been explained on the basis of experimental results.

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