On the spectrum of the Hubbard model with infinite repulsion on anisotropic triangular ladder-type lattice

1999 ◽  
Vol 25 (4) ◽  
pp. 280-284 ◽  
Author(s):  
V. O. Cheranovskii ◽  
E. V. Ezerskaya ◽  
M. V. Krikunov
Keyword(s):  
Hubbard Model ◽  
Type Lattice ◽  
Infinite Repulsion

On the Ground State of Hubbard Model with Strong Repulsion

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3119-3122
Author(s):  
Ju. V. Mikhailova
Keyword(s):  
Hubbard Model ◽  
Ground State ◽  
Exact Result ◽  
Ferromagnetic State ◽  
Total Spin ◽  
Repulsion Energy ◽  
Strong Repulsion ◽  
Hole Number ◽  
Infinite Repulsion

For square (cubic) Hubbard lattice with infinite repulsion energy U exact result has been obtained: the ferromagnetic state with maximum total spin is not the ground state of system, if the hole number is equal to two.

Some properties of the Hubbard model with infinite repulsion

1990 ◽  
Vol 82 (2) ◽  
pp. 151-156 ◽  
Author(s):  
V. Ya. Krivnov ◽  
A. A. Ovchinnikov ◽  
V. O. Cheranovskii
Keyword(s):  
Hubbard Model ◽  
Infinite Repulsion

Direct structure images of 30° partial dislocation cores in silicon

1987 ◽  
Vol 45 ◽  
pp. 242-243
Author(s):  
J. C. Barry ◽  
H. Alexander
Keyword(s):  
Dislocation Core ◽  
Preparation Technique ◽  
Burgers Vector ◽  
Vector Type ◽  
Sample Preparation Technique ◽  
Lattice Images ◽  
Dislocation Core Structure ◽  
Type Lattice ◽  
Direct Inspection

Dislocations in silicon produced by plastic deformation are generally dissociated into partials. 60° dislocations (Burgers vector type 1/2[101]) are dissociated into 30°(Burgers vector type 1/6[211]) and 90°(Burgers vector type 1/6[112]) dislocations. The 30° partials may be either of “glide” or “shuffle” type. Lattice images of the 30° dislocation have been obtained with a JEM 100B, and with a JEM 200Cx. In the aforementioned experiments a reasonable but imperfect match was obtained with calculated images for the “glide” model. In the present experiment direct structure images of 30° dislocation cores have been obtained with a JEOL 4000EX. It is possible to deduce the 30° dislocation core structure by direct inspection of the images. Dislocations were produced by compression of single crystal Si (sample preparation technique described in Alexander et al.).

Sign in / Sign up

Export Citation Format

Share Document