固体物理第一章4

1、X-radiationMicrowavesg g-radiationUVIRRadio waves10-6 10-3 1 103 106 109 1012Wavelength(nm) 332211alalalRlSROD,SRCOl0l)SS(RODCO0l)1 ()(0SSRlS2k,S2k00) 2(2)(0kkRl)3(0hKnkk)2(2hlKnR2hlKR)2(2)(0kkRl)3(0hKnkk332211hbhbhbhK 0kkhKnO, ,20 kk,in40skk,2321hhhhdnKnndhhhsin23213212sin4hhhdn)(0ssRl2)(0kkRlhKnkk

2、)(0又又h0Knkk(3)Knkkh0 2sin 1d321hhhh0Knkk转动单晶法的反射球反射球旋转轴倒易结点平面DXtg22 DXtg2211 sin2d2dsin = 2 样品样品X 射线射线2x2Dsin2d2 2x312最大最大d100: （h2+k2+l2）= 1其次其次d110: （h2+k2+l2）= 2d110rs2r)SS(20rs2iAe d)er (Ars2i(r)deAArs2i (r)deAAf(s)rs2i)(sAfA (r)deAAf(s)rs2i：,( )( )ttis ritttAf s Aef s Ae20 rjrjRmO各原胞中对应原子的位矢各原胞

3、中对应原子的位矢,( )( )is riAfs Aefs Ae1120 111 ,( )( )is riAfs Aefs Ae2220 222 rjrjRmO各原胞中对应原子的位矢各原胞中对应原子的位矢(),( )misrRmAfs AeA22220 2 332211amamamRm2RKnR)kk(Rs2mhm0m(),( )misrRmAfs AeA12110 1 (),( )tmisrRm tttAfs AeA20 ,(s)Aeft1jrs2ijj,)(12tjrsijjesfMAAt1jrKijt1jr) kki(jt1jrs2ijjhj0j(s)ef(s)ef(s)efF(s),(s

4、MAFA ,)(2sFI )(2)()()(2*0jjjjjjjhkljjlwkvhuncwbvauc lbkahnrKnrkkrstjlwkvhunijhkljjjesfF1)(2)(2121*)(2sin)(2cosjjjtjjjjjtjjhklhklhkllwkvhunflwkvhunfFFI)()(jjjlwkvhunitjjhklesfF 21fesfFlkhnitjjhkl)000(211)( 04)(sin)(cos1222222flkhnflkhnfFIhklhkl 偶数偶数奇数奇数 (,)inh nkinh nlink nlF nh nk nlfeee1 cos() cos(

5、) cos()sin() sin() sin()hklhklIFfn h kn h ln klfn h kn h ln kl222221 f2160 332211nanananR321aaa,464321,micba,2346812,321hhh,321aaa, lkh ,tsrhhh111321: cba ,321321hhhnanana:)cos(:)cos(:)cos( 2221 clbkahdhkl第一章要点第一章要点ijiiba 2 ia kjiaab 2 321aaa 332211bhbhbhKn 32 （1 1）（2 2）第一章要点第一章要点332211bhbhbhKh 321hhh 321hhhhKd 2 22