Microwave power dependence in Gd 123 and Tl 2212 thin films: Examining the evidence for limiting behavior

1997 ◽  
Vol 10 (2) ◽  
pp. 85-90 ◽  
Author(s):  
L. F. Cohen ◽  
A. Cowie ◽  
J. C. Gallop ◽  
I. S. Ghosh ◽  
I. N. Goncharov
2005 ◽  
Vol 15 (2) ◽  
pp. 3596-3599
Author(s):  
M.V. Jacob ◽  
A. Sundaresan ◽  
J. Mazierska ◽  
Y. Tanaka

Hyomen Kagaku ◽  
2009 ◽  
Vol 30 (12) ◽  
pp. 688-693 ◽  
Author(s):  
Kazuya HARII ◽  
Kazuya ANDO ◽  
Ken-ichi UCHIDA ◽  
Hiroyasu NAKAYAMA ◽  
Yusuke KAJIWARA ◽  
...  

1996 ◽  
Vol 68 (5) ◽  
pp. 705-707 ◽  
Author(s):  
D. E. Oates ◽  
P. P. Nguyen ◽  
Y. Habib ◽  
G. Dresselhaus ◽  
M. S. Dresselhaus ◽  
...  

2000 ◽  
Vol 14 (16) ◽  
pp. 1633-1650
Author(s):  
K. SUGAWARA ◽  
N. ARAI ◽  
A. KOUZUKI ◽  
S. ICHIMURA ◽  
H. NAOI ◽  
...  

The non-resonant microwave absorption (NRMA) measurements have been intensively performed for superconducting thin films of YBa 2 Cu 3 O y fabricated on MgO (100) substrates and powder samples of LaSrCuO systems. In order to complement the study, we also review the NRMA of BiSrCaCuO system. A particular attention has been paid to the following phenomena: (i) phases, (ii) effect of current, (iii) directional effect of applied magnetic field, (iv) hysteresis, (v) microwave power absorbed as a function of magnetic field, (vi) linewidth in the vicinity of T c , and (vii) modulation amplitude effect. A preliminary study on ( La 0.98 Dy 0.02)1.85 Sr 0.15 CuO 4 was also reported.


2004 ◽  
Vol 11 (06) ◽  
pp. 559-562
Author(s):  
M. RUSOP ◽  
S. ADHIKARI ◽  
A. M. M. OMER ◽  
S. ADHIKARY ◽  
H. UCHIDA ◽  
...  

This paper reports the band gap shifting due to nitrogen ( N 2) doping, microwave power and composition gas pressure of nitrogenated amorphous carbon ( a - C : N ) thin films deposited by newly-developed surface wave microwave plasma chemical vapor deposition (SWMP-CVD). Results show that the optical band gap decreased from 4.1 eV to 2.4 eV corresponding to the increase of N 2 doping from 0 to 5% in the gas ratio. However, further increase of N 2 doping beyond 5% did not decrease the band gap. It was found that composition gas pressure and launched MW power during film deposition also largely control the optical band gap. Investigation of annealing effects on optical band gap and film thickness of the N 2 doped films revealed that both band gap and film thickness decrease significantly with increase of annealing temperature. The optical band gap decreased from 2.4 eV to 1.1 eV, while film thickness decreases from 320 nm to 50 nm corresponding to 200 to 400°C annealing temperature. The results revealed that the properties of a - C : N can be tuned by changing the annealing temperature, composition gas pressure and microwave power of the SWMP-CVD system.


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