Thermal transport studies of diamond thin films

1992 ◽  
Author(s):  
Zhouling Wu ◽  
H. Gronbeck ◽  
X. Su ◽  
Zhengxiu Fan
2006 ◽  
Vol 99 (11) ◽  
pp. 114301 ◽  
Author(s):  
Maki A. Angadi ◽  
Taku Watanabe ◽  
Arun Bodapati ◽  
Xingcheng Xiao ◽  
Orlando Auciello ◽  
...  

Author(s):  
J.B. Posthill ◽  
R.P. Burns ◽  
R.A. Rudder ◽  
Y.H. Lee ◽  
R.J. Markunas ◽  
...  

Because of diamond’s wide band gap, high thermal conductivity, high breakdown voltage and high radiation resistance, there is a growing interest in developing diamond-based devices for several new and demanding electronic applications. In developing this technology, there are several new challenges to be overcome. Much of our effort has been directed at developing a diamond deposition process that will permit controlled, epitaxial growth. Also, because of cost and size considerations, it is mandatory that a non-native substrate be developed for heteroepitaxial nucleation and growth of diamond thin films. To this end, we are currently investigating the use of Ni single crystals on which different types of epitaxial metals are grown by molecular beam epitaxy (MBE) for lattice matching to diamond as well as surface chemistry modification. This contribution reports briefly on our microscopic observations that are integral to these endeavors.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shama ◽  
R. K. Gopal ◽  
Goutam Sheet ◽  
Yogesh Singh

AbstractPd$$_{3}$$ 3 Bi$$_{2}$$ 2 S$$_{2}$$ 2 (PBS) is a recently proposed topological semimetal candidate. However, evidence for topological surface states have not yet been revealed in transport measurements due to the large mobility of bulk carriers. We report the growth and magneto-transport studies of PBS thin films where the mobility of the bulk carriers is reduced by two orders of magnitude, revealing for the first time, contributions from the 2-dimensional (2D) topological surface states in the observation of the 2D weak anti-localization (WAL) effect in magnetic field and angle dependent conductivity measurements. The magnetotransport data is analysed within the 2D Hikami-Larkin-Nagaoka (HLN) theory. The analysis suggests that multiple conduction channels contribute to the transport. It is also found that the temperature dependence of the dephasing length can’t be explained only by electron-electron scattering and that electron-phonon scattering also contributes to the phase relaxation mechanism in PBS films.


Author(s):  
Jean-Paul Mazellier ◽  
Cyril Di Giola ◽  
Pierre Legagneux ◽  
Clément Hébert ◽  
Emmanuel Scorsone ◽  
...  

1997 ◽  
Vol 6 (2-4) ◽  
pp. 521-525 ◽  
Author(s):  
X.Z. Liao ◽  
R.J. Zhang ◽  
C.S. Lee ◽  
S.Tong Lee ◽  
Y.W. Lam

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