Perturbation Analysis of Pairing Symmetry and Transition Temperature in Quasi-One-Dimensional Organic Superconductors

2001 ◽  
Vol 70 (9) ◽  
pp. 2694-2697 ◽  
Author(s):  
Takuji Nomura ◽  
Kosaku Yamada
Keyword(s):  
Transition Temperature ◽  
Perturbation Analysis ◽  
Organic Superconductors ◽  
Pairing Symmetry ◽  
One Dimensional

scholarly journals Midgap edge states and pairing symmetry of quasi-one-dimensional organic superconductors

2001 ◽  
Vol 63 (14) ◽  
Author(s):  
K. Sengupta ◽  
Igor Žutić ◽  
Hyok-Jon Kwon ◽  
Victor M. Yakovenko ◽  
S. Das Sarma
Keyword(s):  
Organic Superconductors ◽  
Pairing Symmetry ◽  
Edge States ◽  
One Dimensional

scholarly journals Influence of dimensionality on phase transition in VO2 nanocrystals

2013 ◽  
Vol 45 (3) ◽  
pp. 305-311 ◽  
Author(s):  
V.A. Blagojevic ◽  
N. Obradovic ◽  
N. Cvjeticanin ◽  
D.M. Minic
Keyword(s):  
Phase Transition ◽  
Activation Energy ◽  
Transition Temperature ◽  
Apparent Activation Energy ◽  
Phase Transition Temperature ◽  
Bulk Material ◽  
Two Dimensional ◽  
Lower Phase ◽  
One Dimensional ◽  
Simultaneous Movement

Hydrothermally synthesized one-dimensional and two-dimensional nanocrystals of VO2 undergo phase transition around 65?C, where temperature and mechanism of phase transition are dependent on dimensionality of nanocrystals. Both nanocrystalline samples exhibit depression of phase transition temperature compared to the bulk material, the magnitude of which depends on the dimensionality of the nanocrystal. One-dimensional nanoribbons exhibit lower phase transition temperature and higher values of apparent activation energy than two-dimensional nanosheets. The phase transition exhibits as a complex process with somewhat lower value of enthalpy than the phase transition in the bulk, probably due to higher proportion of surface atoms in the nanocrystals. High values of apparent activation energy indicate that individual steps of the phase transition involve simultaneous movement of large groups of atoms, as expected for single-domain nanocrystalline materials.

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