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1、TheQuantumTheoryofMagnetismSecondEditionThispageintentionallyleftblankNorbertoMajlisMcGillUniversity,CanadaWorldScientificNEWJERSEY•LONDON•SINGAPORE•BEIJING•SHANGHAI•HONGKONG•TAIPEI•CHENNAIPublishedbyWorldScientificPublishingCo.Pte.Ltd.5TohTuckLink,Singapore596224USAoffice:27WarrenStreet,S
2、uite401-402,Hackensack,NJ07601UKoffice:57SheltonStreet,CoventGarden,LondonWC2H9HEBritishLibraryCataloguing-in-PublicationDataAcataloguerecordforthisbookisavailablefromtheBritishLibrary.THEQUANTUMTHEORYOFMAGNETISM(2ndEdition)Copyright©2007byWorldScientificPublishingCo.Pte.Ltd.Allrightsreser
3、ved.Thisbook,orpartsthereof,maynotbereproducedinanyformorbyanymeans,electronicormechanical,includingphotocopying,recordingoranyinformationstorageandretrievalsystemnowknownortobeinvented,withoutwrittenpermissionfromthePublisher.Forphotocopyingofmaterialinthisvolume,pleasepayacopyingfeethrou
4、ghtheCopyrightClearanceCenter,Inc.,222RosewoodDrive,Danvers,MA01923,USA.Inthiscasepermissiontophotocopyisnotrequiredfromthepublisher.ISBN-13978-981-256-792-5ISBN-10981-256-792-5PrintedinSingapore.Alvin-TheQuantumTheory.pmd111/23/2007,9:00AMPrefacetotheSecondEditionForthesecondeditionIhavea
5、ddedthreenewchapters,namelyonmagneticanisotropy,oncoherentmagnonstatesandonlocalmoments.Besides,Ihaveenlargedthechapteronitinerantmagnetism,byincludingasectiononparamagnons.Ihavecorrectedseveralerrorswhichappearedintherstedition.Someofthesewereindicatedtomebyfriendsandcolleagues,forwhichI
6、thankallofthem.NorbertoMajlise-mail:majlisn@physics.mcgill.caCentreforthePhysicsofMaterials,McGillUniversityMontreal,April2007.vThispageintentionallyleftblankPrefacetotheFirstEditionThisisanadvancedleveltextbookwhichgrewoutoflecturenotesforsev-eralgraduatecoursesItaughtindierentplacesove
7、rseveralyears.ItassumesthatthereaderhasabackgroundofQuantumMechanics,StatisticalMechanicsandCondensedMatterPhysics.ThemethodsofGreen'sfunctions,whicharestandardbynow,areusedfairlyextensivelyinthebook,andamathematicalintroductionisincludedforthosenotveryfamilia