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6.4 $B

  1. $BC1=c$J9=B$$NEE;R2s@^%Q%?!<%s(B

    $B!!LL?4N)J}9=B$$O;X?t$,Am$F4q?t$+6v?t$G$"$kH?$B$NOB!J(B$h+k+l$$B!K$,6v?t$N$_$,8=$o$l$F$$$k!#%@%$%d%b%s%I9=B$$O!"LL?4N)J}3J;R$H$=$l$r(B $\frac{1}{4} \frac{1}{4} \frac{1}{4}$$B$:$i$7$?3J;R$NFs$D$NI{3J;R$G$G$-$F$*$j!"$=$N7k2L$H$7$F!"LL?4N)J}9=B$$NEE;R2s@^%Q%?!<%s$NH?C$($F$$$k!#:GL)O;J}>=9=B$$N(B[110]$BF~

  2. $B5,B'9=B$$NEE;R2s@^%Q%?!<%s(B

    $B!!9g6b$NCf$K$O!"C1=c$J4pK\9=B$$r4p$K86;R$,5,B'E*$KG[Ns$7!"5,B'9=B$$r$H$k$b$N$,$"$k!#$=$N>l9g!"4pK\9=B$$NH?6.7$B!K!#Au$B7?9=B$!"$*$h$SBN?4N)J}9=B$$N5,B'9=B$$G$"$k(BCsCl$B7?9=B$$NEE;R2s@^%Q%?!<%s$K$O!"LL?4N)J}$*$h$SBN?4N)J}9=B$$G>C$($F$$$?H?C$($F$$$?H?

    $B?^(B 6.7:
    \includegraphics[width =.75\linewidth]{s18.epsf}

  3. $BHs@09g9=B$!J(BIncommensurate Structure$B!K$NEE;R2s@^%Q%?!<%s(B

    $B!!DL>o!"5,B'3J;RH?6.8(a)$B$O!"(BCu$_3$Pd$B9g6b$N#1l9g!"5,B'3J;RH?l9g$K$O$=$N<~4|#M$O(B6.8$B$K$J$C$F$$$k!#$^$?!"?^(B6.8(b)$B$O!"(BTl-$B7OD6EAF3;@2=J*$NJQD49=B$$K$h$C$F@8$8$?5,B'3J;RH?

    $B?^(B 6.8:
    \includegraphics[width =.75\linewidth]{s19.epsf}

  4. $B;6L!;6Mp(B

    $B!!(BSiC$B7k>=$J$I$G$7$P$7$P4Q;!$5$l$k@QAX7g4Y!JLL$N@Q$_=E$J$j$N4V0c$$!K$"$k$$$OHy>.AP>=$,B??t8=$l$?;~$K!"LL7g4Y$K?bD>$JJ}8~$K?-$S$?;6L!;6Mp$,8=$l$k!J?^(B6.9(a)$B!K!#$3$N>l9g!"2s@^E@$+$i?-$S$?0lMM$J;6L!;6Mp$G$"$k$,!"@QAX7g4Y$N=P8=$K$"$ku$N7g4Y!JHD>u$N;nNA7A>u$b4^$`!K$H9M$($k$Y$-$G$"$m$&!#(B

    $B?^(B 6.9:
    \includegraphics[width =.75\linewidth]{s20.epsf}

    $B#1Kg$N2s@^%Q%?!<%s$G$O@~>u$K4Q;!$5$l$k;6L!;6Mp$b!"u$K9-$,$C$?;6L!;6Mp$NCGLL$r8+$F$$$k>l9g$,$"$j!"$3$&$7$?;6L!;6Mp$N6/EYJ,I[$r3NG'$9$k$K$O!"7k>=$r79$1$J$,$i$=$NEE;R2s@^%Q%?!]%s$r4Q;!$9$kI,MW$,$"$k!#?^(B6.9(b)$B$O!"(B$c^*$$B<4$K?bD>LLFb$K9-$,$C$?;6L!;6Mp$NCGLL$H$7$F@~>u$K4Q;!$5$l$F$$$kNc$G$"$k!#$3$N;6L!;6Mp$O!"#1u$K1d$S$?;6L!$K$J$k$,!"%+%i%`4V$K$"$kAj4X$,$"$k$?$a$K!"6/EYJ,I[$,8=$o$l$F$$$k!#(B


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2007-11-27