. , k-, . , . , .
. , , , - .
.5.1. - (dHvA) |
28. - (de Haas, van Alphen, 1930,1932 . (1930,1969). , . , . . dHvA . 5.1. , . N- n = s, s- >0. n = s + 1 . s+1, . , ( (4.22) D = B ). s , s+1 n=s,
sD = s Bs = N | (5.1) |
(4.24), ,
U1 = sn=1D c (n-1/2) = 1/2 D cs2 | (5.2) |
s + 1
U2 = c (s+1/2)(N-sD) | (5.3) |
U = U2 + U2 | (5.4) |
.5.2. U(1/B) |
U(1/B) . 5.2. , U1, - , .
= - U/ B | (5.5) |
μ(1/) dHvA. (4.20) , 1/,
(1/B) = (2 e/ c) 1/Se, | (5.6) |
Se - , , . Δ(1/B) Se, .
|
|
.5.3. " " |
. N- . , , .. k ( Δ k). . <111> , . 5.2., , "" ( Δ(1/B)), - "" ( Δ(1/B)). , . , " ", .5.3. , , , . , dHvA .
: , , , , .
( dHvA) . , dHvA, , , - (1930), .
. dHvA, . , .14.
. , ^ - . , , , , . , , . , .. c >>1, - , ( , , ), ( ) . , l c (.. - ) . ( /) ( /) :
- l c = n | (5.7) |
- l c = (n+1/2) |
, , . ( , ) .
|
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-.
, , 0,
0 = c/(2 ), | (5.8) |
- . 0 >> l - . .. "" -. 0 ~ l , 0 << l . . , .