石墨烯相关研究高被引文献.docx
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石墨烯相关研究高被引文献.docx
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石墨烯相关研究高被引文献
石墨烯相关研究高被引文献
(被引次数超过360,检索时间2010年)
显示1条,共50条
作者:
Novoselov,KS;Geim,AK;Morozov,SV;Jiang,D;Zhang,Y;Dubonos,SV;Grigorieva,IV;Firsov,AA
标题:
Electricfieldeffectinatomicallythincarbonfilms
来源出版物:
SCIENCE,306(5696):
666-669OCT222004
摘要:
Wedescribemonocrystallinegraphiticfilms,whichareafewatomsthickbutarenonethelessstableunderambientconditions,metallic,andofremarkablyhighquality.Thefilmsarefoundtobeatwo-dimensionalsemimetalwithatinyoverlapbetweenvalenceandconductancebands,andtheyexhibitastrongambipolarelectricfieldeffectsuchthatelectronsandholesinconcentrationsupto10(13)persquarecentimeterandwithroom-temperaturemobilitiesofsimilarto10,000squarecentimeterspervolt-secondcanbeinducedbyapplyinggatevoltage.
ISSN:
0036-8075
DOI:
10.1126/science.1102896
显示2条,共50条
作者:
Thess,A;Lee,R;Nikolaev,P;Dai,HJ;Petit,P;Robert,J;Xu,CH;Lee,YH;Kim,SG;Rinzler,AG;Colbert,DT;Scuseria,GE;Tomanek,D;Fischer,JE;Smalley,RE
标题:
Crystallineropesofmetalliccarbonnanotubes
来源出版物:
SCIENCE,273(5274):
483-487JUL261996
摘要:
Fullerenesingle-wallnanotubes(SWNTs)wereproducedinyieldsofmorethan70percentbycondensationofalaser-vaporizedcarbon-nickel-cobaltmixtureat1200degreesC.X-raydiffractionandelectronmicroscopyshowedthattheseSWNTsarenearlyuniformindiameterandthaitheyself-organizeinto''ropes,''whichconsistof100to500SWNTsinatwo-dimensionaltriangularlatticewithalatticeconstantof17angstroms.Thex-rayformfactorisconsistentwiththatofuniformlychargedcylinders13.8+/-0.2angstromsindiameter.Theropesweremetallic,withasingle-roperesistivityof<10(-4)ohm-centimetersat300kelvin.TheuniformityofSWNTdiameterisattributedtotheefficientannealingofaninitialfullerenetubeletkeptopenbyafewmetalatoms;theoptimumdiameterisdeterminedbycompetitionbetweenthestrainenergyofcurvatureofthegraphenesheetandthedangling-bondenergyoftheopenedge,wheregrowthoccurs.Thesefactorsstronglyfavorthemetallic(10,10)tubewithC-5vsymmetryandanopenedgestabilizedbytriplebonds.
ISSN:
0036-8075
显示3条,共50条
作者:
Novoselov,KS;Geim,AK;Morozov,SV;Jiang,D;Katsnelson,MI;Grigorieva,IV;Dubonos,SV;Firsov,AA
标题:
Two-dimensionalgasofmasslessDiracfermionsingraphene
来源出版物:
NATURE,438(7065):
197-200NOV102005
摘要:
Quantumelectrodynamics(resultingfromthemergerofquantummechanicsandrelativitytheory)hasprovidedaclearunderstandingofphenomenarangingfromparticlephysicstocosmologyandfromastrophysicstoquantumchemistry(1-3).Theideasunderlyingquantumelectrodynamicsalsoinfluencethetheoryofcondensedmatter(4,5),butquantumrelativisticeffectsareusuallyminuteintheknownexperimentalsystemsthatcanbedescribedaccuratelybythenon-relativisticSchrodingerequation.Herewereportanexperimentalstudyofacondensed-mattersystem(graphene,asingleatomiclayerofcarbon(6,7))inwhichelectrontransportisessentiallygovernedbyDirac's(relativistic)equation.Thechargecarriersingraphenemimicrelativisticparticleswithzerorestmassandhaveaneffective'speedoflight'c*approximateto10(6)ms(-1).Ourstudyrevealsavarietyofunusualphenomenathatarecharacteristicoftwo-dimensionalDiracfermions.Inparticularwehaveobservedthefollowing:
first,graphene'sconductivityneverfallsbelowaminimumvaluecorrespondingtothequantumunitofconductance,evenwhenconcentrationsofchargecarrierstendtozero;second,theintegerquantumHalleffectingrapheneisanomalousinthatitoccursathalf-integerfillingfactors;andthird,thecyclotronmassm(c)ofmasslesscarriersingrapheneisdescribedbyE=m(c)c(*)
(2).Thistwo-dimensionalsystemisnotonlyinterestinginitselfbutalsoallowsaccesstothesubtleandrichphysicsofquantumelectrodynamicsinabench-topexperiment.
ISSN:
0028-0836
DOI:
10.1038/nature04233
显示4条,共50条
作者:
Geim,AK(Geim,A.K.);Novoselov,KS(Novoselov,K.S.)
标题:
Theriseofgraphene
来源出版物:
NATUREMATERIALS,6(3):
183-191MAR2007
摘要:
Grapheneisarapidlyrisingstaronthehorizonofmaterialsscienceandcondensed-matterphysics.Thisstrictlytwo-dimensionalmaterialexhibitsexceptionallyhighcrystalandelectronicquality,and,despiteitsshorthistory,hasalreadyrevealedacornucopiaofnewphysicsandpotentialapplications,whicharebrieflydiscussedhere.Whereasonecanbecertainoftherealnessofapplicationsonlywhencommercialproductsappear,graphenenolongerrequiresanyfurtherproofofitsimportanceintermsoffundamentalphysics.Owingtoitsunusualelectronicspectrum,graphenehasledtotheemergenceofanewparadigmof'relativistic'condensed-matterphysics,wherequantumrelativisticphenomena,someofwhichareunobservableinhigh-energyphysics,cannowbemimickedandtestedintable-topexperiments.Moregenerally,graphenerepresentsaconceptuallynewclassofmaterialsthatareonlyoneatomthick,and,onthisbasis,offersnewinroadsintolow-dimensionalphysicsthathasneverceasedtosurpriseandcontinuestoprovideafertilegroundforapplications.
ISSN:
1476-1122
显示5条,共50条
作者:
Zhang,YB;Tan,YW;Stormer,HL;Kim,P
标题:
ExperimentalobservationofthequantumHalleffectandBerry'sphaseingraphene
来源出版物:
NATURE,438(7065):
201-204NOV102005
摘要:
Whenelectronsareconfinedintwo-dimensionalmaterials,quantum-mechanicallyenhancedtransportphenomenasuchasthequantumHalleffectcanbeobserved.Graphene,consistingofanisolatedsingleatomiclayerofgraphite,isanidealrealizationofsuchatwo-dimensionalsystem.However,itsbehaviourisexpectedtodiffermarkedlyfromthewell-studiedcaseofquantumwellsinconventionalsemiconductorinterfaces.Thisdifferencearisesfromtheuniqueelectronicpropertiesofgraphene,whichexhibitselectron-holedegeneracyandvanishingcarriermassnearthepointofchargeneutrality(1,2).Indeed,adistinctivehalf-integerquantumHalleffecthasbeenpredicted(3-5)theoretically,ashastheexistenceofanon-zeroBerry'sphase(ageometricquantumphase)oftheelectronwavefunction-aconsequenceoftheexceptionaltopologyofthegraphenebandstructure(6,7).Recentadvancesinmicromechanicalextractionandfabricationtechniquesforgraphitestructures(8-12)nowpermitsuchexotictwo-dimensionalelectronsystemstobeprobedexperimentally.Herewereportanexperimentalinvestigationofmagneto-transportinahigh-mobilitysinglelayerofgraphene.Adjustingthechemicalpotentialwiththeuseoftheelectricfieldeffect,weobserveanunusualhalf-integerquantumHalleffectforbothelectronandholecarriersingraphene.TherelevanceofBerry'sphasetotheseexperimentsisconfirmedbymagneto-oscillations.Inadditiontotheirpurelyscientificinterest,theseunusualquantumtransportphenomenamayleadtonewapplicationsincarbon-basedelectronicandmagneto-electronicdevices.
ISSN:
0028-0836
DOI:
10.1038/nature04235
显示6条,共50条
作者:
Hu,JT;Odom,TW;Lieber,CM
标题:
Chemistryandphysicsinonedimension:
Synthesisandpropertiesofnanowiresandnanotubes
来源出版物:
ACCOUNTSOFCHEMICALRESEARCH,32(5):
435-445MAY1999
ISSN:
0001-4842
显示7条,共50条
作者:
SAITO,R;FUJITA,M;DRESSELHAUS,G;DRESSELHAUS,MS
标题:
ELECTRONIC-STRUCTUREOFCHIRALGRAPHENETUBULES
来源出版物:
APPLIEDPHYSICSLETTERS,60(18):
2204-2206MAY41992
摘要:
Theelectronicstructureforgraphenemonolayertubulesispredictedasafunctionofthediameterandhelicityoftheconstituentgraphenetubules.Thecalculatedresultsshowthatapproximately1/3ofthesetubulesareaone-dimensionalmetalwhichisstableagainstaPeierlsdistortion,andtheother2/3areone-dimensionalsemiconductors.Theimplicationsoftheseresultsarediscussed.
ISSN:
0003-6951
显示8条,共50条
作者:
Rao,AM;Richter,E;Bandow,S;Chase,B;Eklund,PC;Williams,KA;Fang,S;Subbaswamy,KR;Menon,M;Thess,A;Smalley,RE;Dresselhaus,G;Dresselhaus,MS
标题:
Diameter-selectiveRamanscatteringfromvibrationalmodesincarbonnanotubes
来源出版物:
SCIENCE,275(5297):
187-191JAN101997
摘要:
Singlewallcarbonnanotubes(SWNTs)thatarefoundasclose-packedarraysincrystallineropeshavebeenstudiedbyusingRamanscatteringtechniqueswithlaserexcitationwavelengthsintherangefrom514.5to1320nanometers.NumerousRamanpeakswereobservedandidentifiedwithvibrationalmodesofarmchairsymmetry(n,n)SWNTs.TheRamanspectraareingoodagreementwithlatticedynamicscalculationsbasedonC-Cforceconstantsusedtofitthetwo-dimensional,experimentalphonondispersionofasinglegraphenesheet.Calculatedintensitiesfromanonresonant,bondpolarizabilitymodeloptimizedforsp
(2)carbonarealsoinqualitativeagreementwiththeRamandata,althougharesonantRamanscatteringprocessisalsotakingplace.Thisresonanceresultsfromtheone-dimensionalquantumconfinementoftheelectronsinthenanotube.
ISSN:
0036-8075
显示9条,共50条
作者:
Odom,TW;Huang,JL;Kim,P;Lieber,CM
标题:
Atomicstructureandelectronicpropertiesofsingle-walledcarbonnanotubes
来源出版物:
NATURE,391(6662):
62-64JAN11998
摘要:
Carbonnanotubes
(1)arepredictedtobemetallicorsemiconductingdependingontheirdiameterandthehelicityofthearrangementofgraphiticringsintheirwalls(2-5).Scanningtunnellingmicroscopy(STM)offersthepotentialtoprobethisprediction,asitcanresolvesimultaneouslybothatomicstructureandtheelectronicdensityofstates.PreviousSTMstudiesofmulti-wallednanotubes(6-9)andsingle-wallednanotubes(SWNTs)(10)haveprovidedindicationsofdifferingstructuresanddiameter-d
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