Interpolation of functions in the Brillouin zone and special-point method

1983 ◽  
Vol 26 (5) ◽  
pp. 488-491
Author(s):  
M. L. Zolotarev ◽  
A. S. Poplavnoi
2004 ◽  
Vol 18 (09) ◽  
pp. 1277-1286 ◽  
Author(s):  
W. J. CASPERS ◽  
B. LULEK ◽  
T. LULEK ◽  
M. KUZMA ◽  
A. WAL

The Bethe Ansatz can be treated using two approaches: The Co-ordinate Bethe Ansatz (CBA) and The Algebraic Bethe Ansatz (ABA). In this paper the relation between the solutions given by these two methods is addressed. The considerations are based on the finite Heisenberg magnet with N=8 nodes and for r=4 reversed spins s=1/2. Both methods provide consistent solutions in the entire Brillouin zone (BZ). Moreover there is a special point — a border of the BZ — for both approaches, in which the solutions are not well-defined.


1984 ◽  
Vol 30 (12) ◽  
pp. 6917-6920 ◽  
Author(s):  
David Singh ◽  
Y. P. Varshni

Author(s):  
Barry S. Eckert ◽  
S. M. McGee-Russell

Difflugia lobostoma is a shelled amoeba. The shell is an external structure of considerable mass which presents the animal with special restrictions in cell locomotion which are met by the development of active pseudopodial lobopodia containing, apparently, an organized system of thick and thin microfilaments (Eckert and McGee-Russell, 1972). The shell is constructed of sand grains picked up from the environment, and cemented into place with a secretion. There is a single opening through which lobopods extend. The organization of the shell was studied by scanning electron microscopy (SEM).Intact shells or animals with shells were dried by the critical point method of Anderson (1966) or air dried, after primary fixation in glutaraldehyde.


2007 ◽  
Vol 38 (3) ◽  
pp. 62
Author(s):  
SHERRY BOSCHERT
Keyword(s):  

2015 ◽  
Vol 11 (3) ◽  
pp. 3224-3228
Author(s):  
Tarek El-Ashram

In this paper we derived a new condition of formation and stability of all crystalline systems and we checked its validity andit is found to be in a good agreement with experimental data. This condition is derived directly from the quantum conditionson the free electron Fermi gas inside the crystal. The new condition relates both the volume of Fermi sphere VF andvolume of Brillouin zone VB by the valence electron concentration VEC as ;𝑽𝑭𝑽𝑩= 𝒏𝑽𝑬𝑪𝟐for all crystalline systems (wheren is the number of atoms per lattice point).


Choonpa Igaku ◽  
2011 ◽  
Vol 38 (5) ◽  
pp. 585-594
Author(s):  
Yasuhide MITSUMOTO ◽  
Ryuuki MINAMI ◽  
Takahiro MORI ◽  
Takuya UCHIDA ◽  
Koji FUJITA ◽  
...  

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