Spin Density Wave in Chromium and Its Alloys - Physical ...

and V arestudied on the basis of a simplihed model of the known band structure of chromium. Octahedral. Fermi surfaces of different sizes are assumed for ... SkiptoMainContentJournalsPhysicalReviewLettersPhysicalReviewXPRXEnergyPRXQuantumReviewsofModernPhysicsPhysicalReviewAPhysicalReviewBPhysicalReviewCPhysicalReviewDPhysicalReviewEPhysicalReviewResearchPhysicalReviewAcceleratorsandBeamsPhysicalReviewAppliedPhysicalReviewFluidsPhysicalReviewMaterialsPhysicalReviewPhysicsEducationResearchPhysicalReviewPhysicalReview(SeriesI)PhysicsPhysiqueFizikaPhysicsMagazineHelp/FeedbackSearch/ArticleLookupLoginLearnaboutourresponsetoCOVID-19,includingfreelyavailableresearchandexpandedremoteaccesssupport.PhysicalReviewJournalsArchivePublishedbytheAmericanPhysicalSocietyJournalsAuthorsRefereesBrowseSearchPressSpinDensityWaveinChromiumandItsAlloysAkioShibatani,KazukoMotizuki,andTakeoNagamiyaPhys.Rev.177,984–Published10January1969More×ArticleReferencesCitingArticles(97)ArticleReferencesCitingArticles(97)PDFExportCitationAbstractAuthorsReferencesAbstractAuthorsReferencesAbstract Antiferromagnetic,helical,andsinusoidalspindensitywaves(SDW)inchromiumanditsalloyswithMnandVarestudiedonthebasisofasimplifiedmodeloftheknownbandstructureofchromium.OctahedralFermisurfacesofdifferentsizesareassumedfortheelectronbandandholeband,andthesebandsareconsideredtoplaythemainroleintheformationofaSDW;otherbandshavingfreeFermisurfacesareconsideredtosupplyelectronstothesebandsduringtheformationofaSDWandarecalledthereservoir.TheexchangepotentialforeachelectronduetotheSDWmixestheelectronbandandholeband,andproducestheSDWitself,sothataself-consistencyequationissetupandsolved.ItisfoundthatthesinusoidalSDWgivesthelowestenergy.ItswavevectorQatabsolutezero(aswellasthatofahelicalSDW)isthedistancebetweentheparallelsurfacesoftheelectronandholeoctahedra,butthedistancechangeswiththesupplyofelectronsfromthereservoir.Withtherigid-bandmodelforalloys,itisfoundthatQjumpsatasmallconcentrationofMntoahighervaluenotequaltothatfortheexactantiferromagnetism,inagreementwithneutronobservations.Theobservedabrupttransitiontotheexactantiferromagnetismatahigherconcentrationisnotpredicted,however.TheNéeltemperatureforasecond-ordertransitioniscalculated.ThevalueofQattheNéeltemperatureincreasesrapidlywithincreasingMnconcentrationandattainsthevaluefortheexactantiferromagnetism,inagreementwithobservations.Adiscussionofthemagneticmomentamplitudeisgiven.Received24May1968DOI:https://doi.org/10.1103/PhysRev.177.984©1969AmericanPhysicalSocietyAuthors&Affiliations AkioShibataniFacultyofEngineeringScience,OsakaUniversity,Toyonaka,JapanKazukoMotizuki*andTakeoNagamiya*DepartmentofPhysics,UniversityofArizona,Tucson,Arizona85721*Permanentaddress:FacultyofEngineeringScience,OsakaUniversity,Toyonaka,Japan.ClicktoExpandReferences(SubscriptionRequired) ClicktoExpandIssueVol.177,Iss.2—January1969Reuse&PermissionsAccessOptionsBuyArticle»LoginwithindividualAPSJournalAccount»Loginwithausername/passwordprovidedbyyourinstitution»GetaccessthroughaU.S.publicorhighschoollibrary»AuthorizationRequiredLogInOtherOptionsBuyArticle»FindanInstitutionwiththeArticle»×Download&SharePDFExportReuse&PermissionsCitingArticles(97)Tweet×Images×SignuptoreceiveregularemailalertsfromPhysicalReviewJournalsArchive LogInCancelForgotyourusername/password?Createanaccount×SearchAllFields Author Abstract Abstract/Title PhySHConcept Title CitedAuthor Affiliation Collaboration ArticleLookupPasteacitationorDOIEnteracitationJournal:Phys.Rev.Lett. Phys.Rev.X PRXQuantum Rev.Mod.Phys. Phys.Rev.A Phys.Rev.B Phys.Rev.C Phys.Rev.D Phys.Rev.E Phys.Rev.Research Phys.Rev.Accel.Beams Phys.Rev.STAccel.Beams Phys.Rev.Applied Phys.Rev.Fluids Phys.Rev.Materials Phys.Rev.Phys.Educ.Res. Phys.Rev.STPhys.Educ.Res. Physics Phys.Rev. Phys.Rev.(SeriesI) PhysicsPhysiqueFizika Volume:Article:×