Van Hove singularities and the role of doping in the stabilization, synthesis and superconductivity of HgBa2Can−1CunO2n+2+δ

1993 ◽  
Vol 216 (3-4) ◽  
pp. 273-283 ◽  
Author(s):  
D.L. Novikov ◽  
A.J. Freeman
1996 ◽  
Vol 53 (2) ◽  
pp. 932-944 ◽  
Author(s):  
E. Cappelluti ◽  
L. Pietronero

1993 ◽  
Vol 48 (21) ◽  
pp. 15957-15965 ◽  
Author(s):  
R. J. Radtke ◽  
K. Levin ◽  
H.-B. Schüttler ◽  
M. R. Norman

2020 ◽  
Vol 62 (11) ◽  
pp. 1907
Author(s):  
И.O. Райков ◽  
Д.А. Конюх ◽  
A.Н. Ипатов ◽  
Д.А. Паршин

We study the role of disorder in the force constants distribution on the acoustical and optical phonons in amorphous graphene. It is shown that for a sufficient strength of disorder the boson peak appears in the density of states. With increasing strength of disorder, the peak moves to low frequencies together with Yung modulus. For sufficiently small disorder we have the Van-Hove singularities in the vibration density of states. With increasing disorder, these singularities transform together to one boson peak. The first disappears optical phonons then the acoustical one. The same investigation was done for flexural modes. We show that these modes disappear in disorder in already weak perturbations and transforms to phonons.


JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.


2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.


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