134page

122 ^ll76f =+el Etr t1111 (110)dg gzI EI €4 t*6* (a) (b) ral 7-3 bccel =aJE$ =aJS-BF E ='J+EIAC+ql^.i Ti"Jol trls4l =88"il^l =Bol "Jq+= Ag += ++ ql Hl6Iq +ulz} 4+61 4 s rrE =BE Eolol tr}tral gq. zlggsz} ^J+6IH flz}9 ptlf"l ?zlz;ly_E ^Jgel e+e+ Qtrrll Eql^]E =Bol "Jq+Al €4.: el4 (s 7-3)! z;o1 zlg"I^l= ^Jg+ ,J3 s.*98 _ tr^lo.JtrI. +Bts+ =BEJ6JS =B4l+r +4.(-s 7-3)ql^J E p ,J6Jg "JHI4fl 45- ( ) e+ t l-E -E^la].-L ll4. olE zlEql s+q= E +ql^'l +Hd €;J t ztlg E"Jg a6lq c46IE +BoJ6Jg oJ Tlnql s+q= ae HJ6J +ql^l ol =BE.Iql 9l = B6J"Jol 7}ts+ €BEJ'Jol €trI. el= EE ECgrlAee-l 4+ trB 7-4ql _ E ^l6L= (111)Hg + elE €BtsgE C46IE ol E.|ql 9l= oJ6Jg lBql^l _ tr^l 6I= tr 101, t1101, [ro r], [ror], tor 11, t0 11lg 6z}]E ,]a]Bol4. el= =q tuol ,J6Jg ol (ll1)tsql El]6lq^]= +BoJ'Jol 9zl *+4= 7)Z tBg F6Iq "J + 914. rBq (111)Eql sElq= 6zl]el *6J +ql^] rl=. E,JtJE +41= zlz)y z) e Eq 4+ 7l6l4oJ +41 zl r]E ^J44 os ?gE _ tr + zl]E =BEqlq^l .J q B + 9l= €B rJ"Jg 3 7N7l €r}. [rH 7-5]9 (c) e+ ?ol (111)g FzlEg 4 zN zlzll- glgeE + zlJg E"I Eildlq 3rllE +BEJ'J oJ 9l9E d;l E^.1 = 4x 3=72tN9 =Bal7I gl4. (110) 1----' '(110) (a) reJ 7-4 tcc% (ur)E9 9zlu[€4 = B ,J"J (b) r (101) ==J Erl. ==J "J-BF trorl ,1| <orD ---- , (110) \ (011)