Band structure and Fermi surface ofTmGa3

1999 ◽  
Vol 59 (12) ◽  
pp. 7893-7900 ◽  
Author(s):  
V. B. Pluzhnikov ◽  
A. Czopnik ◽  
G. E. Grechnev ◽  
N. V. Savchenko ◽  
W. Suski
Keyword(s):  
2021 ◽  
Vol 103 (8) ◽  
Author(s):  
M. Naumann ◽  
P. Mokhtari ◽  
Z. Medvecka ◽  
F. Arnold ◽  
M. Pillaca ◽  
...  

1997 ◽  
Vol 21 (3) ◽  
pp. 471-475 ◽  
Author(s):  
Todor M. Mishonov ◽  
Ivan N. Gentchev ◽  
Radostina K. Koleva ◽  
Evgeni S. Penev

1992 ◽  
Vol 82 (4) ◽  
pp. 235-238 ◽  
Author(s):  
P. Wetzel ◽  
C. Pirri ◽  
P. Paki ◽  
J.C. Peruchetti ◽  
D. Bolmont ◽  
...  

1966 ◽  
Vol 149 (2) ◽  
pp. 504-518 ◽  
Author(s):  
Gideon Weisz
Keyword(s):  

2009 ◽  
Vol 23 (05) ◽  
pp. 723-741 ◽  
Author(s):  
K. IYAKUTTI ◽  
C. NIRMALA LOUIS ◽  
S. ANURATHA ◽  
S. MAHALAKSHMI

The electronic band structure, density of states, structural phase transition, superconducting transition and Fermi surface cross section of titanium ( Ti ) under normal and high pressures are reported. The high pressure band structure exhibits significant deviations from the normal pressure band structure due to s → d transition. On the basis of band structure and total energy results obtained using tight-binding linear muffin-tin orbital method (TB LMTO), we predict a phase transformation sequence of α( hcp ) → ω (hexagonal) → γ (distorted hcp) → β (bcc) in titanium under pressure. From our analysis, we predict a δ (distorted bcc) phase which is not stable at any high pressures. At ambient pressure, the superconducting transition occurs at 0.354 K. When the pressure is increased, it is predicted that, Tc increases at a rate of 3.123 K/Mbar in hcp–Ti . On further increase of pressure, Tc begins to decrease at a rate of 1.464 K/Mbar. The highest value of Tc(P) estimated is 5.043 K for hcp–Ti , 4.538 K for ω– Ti and 4.85 K for bcc – Ti . From this, it is inferred that the maximum value of Tc(P) is rather insensitive to the crystal structure of Ti . The nonlinearities in Tc(P) is explained by considering the destruction and creation of new parts of Fermi surface at high pressure. At normal pressure, the hardness of Ti is in the following order: ω- Ti > hcp - Ti > bcc- Ti > γ- Ti .


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