1、BlIdFdLBlIdFxxdFFyydFF zzdFFd1I2I1BdIB2101d1I2I1B21Fd12221Bl dIFd21221dlBIdFl dI222102dldIIdIB210112Fd2Bl dI11210122dldIIdF2210212dldIIdF21Fd12Fdd1I2I1B21Fdl dI212Fd2Bl dI1221dldFF 112dldFdII21021210122dldIIdF2210212dldIIdFd1I2I1B21Fdl dI212Fd2Bl dI1dIIF2102XYABIFdyFdxFdlIdBlIdFdlIdFdcosdFdFxsindFdF

2、ysinIBdlIBdyIBdxLxxdFFLyydFFsindFBlIdFddlIBdFdyjdxil dXYABIFdyFdxFdlIdjIBLF0BAyyxIBdyFBAxxyIBdxFIBLXYABIFdyFdxFdlId 0Rabcdl lI0dadcbcabFFFFaddaBlIdFadIBdljjRlIB)2( dadcbcabFFFFjRlIB)2( 0Rabcdl lIyx0 xIB210dxBIdF2dxIxI2102dxBlIdFdFdbaadxIxIF2102abaIIln2210ZIBFdzFd/FdBlIdFdZIBFdzFd/FdBlIdFdlIdLzdFFLdF

3、sinIBdldF RdlIB20sinsin2 RIBlIdB1l2labcdadFbcFcdFabFIIB)(ba)(cdn1ladFsin1BIlFbcsin1BIlabF)sin(1BIlBIl2cdFBlIdFdcdFabFB)(ba)(cdn1ladFbcFabFcdFsin2sin211lFlFMcdabsin21BlIlsinISBnISPmBPMmabFBIl2cdFcdFabFB)(ba)(cdn1lsinNISBM BPMmsinISBM nNISPmBPMmcdFabFB)(ba)(cdn1lSIdpdm0SIIIBpdMdmBSIdBSIdMd0SMdM0SBSId0

4、SBnIdS0SdSBnIBPmnISPm0SBnI0SIIImPMBmaxBPMmcdFabFB)(ba)(cdn1lBPMmcdFabFB)(ba)(cdn1lIabdABCD IIabdABCD IABdldkIdakIABFCDCDBdlIFbdakICDdlbdkIBlIdFdABBdlIdbdkIlnBCBdlIdrrkIbddBCDAFFdakIFABbdakIFCDIabdABCD IDAFBCFCDABFFF)11(bddakI)(bddabkIdakIFABbdakIFCDIabdABCD I)11(bddakIFFFCDAB)(bdkdkaIDABBaI bBBabIDA

5、 bBBPDAmnISPmIabdABCD IIIabcd d cFIlBF ddFAddIlBladBlabcdaadBladabcabcdaadabcmmIAddBlddIlBAIIabcd d cFlMddABPMmsinBISBcdF)(cdabF)(ban)(cosBISddBISsin)cos(BSIdMddAmIddA)(SBIdsinBISM BcdF)(cdabF)(ban21mIdA)(12mmImImIAmIddABcdF)(cdabF)(ban1lId1lId2l d2l dFdA21)(l dBlIdBl dl dI)(12BSdI)(mIddAAmIBIR060nn

6、NISPmnRNI212nRNI212BIR060n060sinBPMm23212BRNI243RNIBnRNIPm212BPMmBIR060nmIA)60cos22(22RBRBNI241RNIB)(12IBIR060nvBLFBvqFLLCFFF)(BvEqBvqFLBvvBBvqFL0LFBvqvBFLBvR0LFqBmvR Rvm2BvqFLvvRT2qBm2vqBLFqBmvR BqBmT2qBmvR vvvBBcos/vv sinvv v/vvv/vBqBmvRqBmvTvh/2hqBmT2qBmvR R/vvv/vvIbdV12BdIBRUHHIbdV12BIB2V1dvBveF

7、LHCEeF0CLFFCF HEvLF0HEeBveBvEH21UUUH21l dEH21)(l dBv21vBdlvBbenvbdIdIBneUH1neRH10HEeBveIB2V1CF HEvLFbdneRH1dIBRUHH21UUUH21l dEH21vBdlvBbdIBnqUH1nqRH10HhhEqBvq21)(l dBvqnvbdI IB2V1CF HEvLFbdneRH1nqRH1NSINS0BBB0BBMVpMmV0lim)(內(nèi)LLIldMH)()(0內(nèi)LLIl dB內(nèi)）LLIl dM(內(nèi)）（LLLIl dMl dB001)()(0)(0內(nèi)內(nèi)LLII0BBB0IIIMBH0內(nèi)）

8、（LLLIl dMl dB001)(0內(nèi)LLIl dH0SSdBHMmm)(0MHBrm1HBr0MBH0Hm)1 (0rm1B0BB0BHMm)(0MHB0BB0BB B0B0BBmpLemem)( vmrLemL0BPMm0BmMeLem0BMemL0BMdtMLLememLddtMLem0BMemL0BMememem0B0BemmpLem0BMemL0BMememLem0BMemL0BMememBmpBVppMmmV0limmp0mpBH0abcsSBBH0cHrBs在外場(chǎng)作用下，磁矩與外場(chǎng)同在外場(chǎng)作用下，磁矩與外場(chǎng)同方向排列時(shí)的磁能將低于磁矩方向排列時(shí)的磁能將低于磁矩與外場(chǎng)反方向排列時(shí)的磁能與外場(chǎng)反方向排列時(shí)的磁能-磁性很強(qiáng)磁性很強(qiáng)r1R2R0I0Ir1R2R0I0I22100rRIiiLIl dH012102RIr02112IRrH12 rHr1R2R0I0I0211