000841205 001__ 841205
000841205 005__ 20230426083154.0
000841205 0247_ $$2doi$$a10.1103/PhysRevB.96.245408
000841205 0247_ $$2ISSN$$a0163-1829
000841205 0247_ $$2ISSN$$a0556-2805
000841205 0247_ $$2ISSN$$a1094-1622
000841205 0247_ $$2ISSN$$a1095-3795
000841205 0247_ $$2ISSN$$a1098-0121
000841205 0247_ $$2ISSN$$a1550-235X
000841205 0247_ $$2ISSN$$a2469-9950
000841205 0247_ $$2ISSN$$a2469-9969
000841205 0247_ $$2Handle$$a2128/16276
000841205 0247_ $$2WOS$$aWOS:000417639900007
000841205 0247_ $$2altmetric$$aaltmetric:26677581
000841205 037__ $$aFZJ-2017-08298
000841205 082__ $$a530
000841205 1001_ $$0P:(DE-HGF)0$$aKellner, J.$$b0
000841205 245__ $$aExploring the subsurface atomic structure of the epitaxially grown phase-change material Ge2 Sb2 Te5
000841205 260__ $$aWoodbury, NY$$bInst.$$c2017
000841205 3367_ $$2DRIVER$$aarticle
000841205 3367_ $$2DataCite$$aOutput Types/Journal article
000841205 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1552635894_21967
000841205 3367_ $$2BibTeX$$aARTICLE
000841205 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000841205 3367_ $$00$$2EndNote$$aJournal Article
000841205 520__ $$aScanning tunneling microscopy (STM) and spectroscopy (STS) in combination with density functional theory (DFT) calculations are employed to study the surface and subsurface properties of the metastable phase of the phase-change material Ge2Sb2Te5 as grown by molecular beam epitaxy. The (111) surface is covered by an intact Te layer, which nevertheless permits the detection of the more disordered subsurface layer made of Ge and Sb atoms. Centrally, we find that the subsurface layer is significantly more ordered than expected for metastable Ge2Sb2Te5. First, we show that vacancies are nearly absent within the subsurface layer. Secondly, the potential fluctuation, tracked by the spatial variation of the valence band onset, is significantly less than expected for a random distribution of atoms and vacancies in the subsurface layer. The strength of the fluctuation is compatible with the potential distribution of charged acceptors without being influenced by other types of defects. Thirdly, DFT calculations predict a partially tetrahedral Ge bonding within a disordered subsurface layer, exhibiting a clear fingerprint in the local density of states as a peak close to the conduction band onset. This peak is absent in the STS data implying the absence of tetrahedral Ge, which is likely due to the missing vacancies required for structural relaxation around the shorter tetrahedral Ge bonds. Finally, isolated defect configurations with a low density of 10−4nm−2 are identified by comparison of STM and DFT data, which corroborates the significantly improved order in the epitaxial films driven by the buildup of vacancy layers.
000841205 536__ $$0G:(DE-HGF)POF3-143$$a143 - Controlling Configuration-Based Phenomena (POF3-143)$$cPOF3-143$$fPOF III$$x0
000841205 536__ $$0G:(DE-Juel1)jiff13_20131101$$aMagnetic Anisotropy of Metallic Layered Systems and Nanostructures (jiff13_20131101)$$cjiff13_20131101$$fMagnetic Anisotropy of Metallic Layered Systems and Nanostructures$$x1
000841205 542__ $$2Crossref$$i2017-12-11$$uhttps://link.aps.org/licenses/aps-default-license
000841205 588__ $$aDataset connected to CrossRef
000841205 7001_ $$0P:(DE-Juel1)130545$$aBihlmayer, G.$$b1$$ufzj
000841205 7001_ $$0P:(DE-HGF)0$$aDeringer, V. L.$$b2
000841205 7001_ $$0P:(DE-HGF)0$$aLiebmann, M.$$b3
000841205 7001_ $$0P:(DE-HGF)0$$aPauly, C.$$b4
000841205 7001_ $$0P:(DE-HGF)0$$aGiussani, A.$$b5
000841205 7001_ $$0P:(DE-HGF)0$$aBoschker, J. E.$$b6
000841205 7001_ $$0P:(DE-HGF)0$$aCalarco, R.$$b7
000841205 7001_ $$0P:(DE-HGF)0$$aDronskowski, R.$$b8
000841205 7001_ $$0P:(DE-HGF)0$$aMorgenstern, M.$$b9$$eCorresponding author
000841205 77318 $$2Crossref$$3journal-article$$a10.1103/physrevb.96.245408$$bAmerican Physical Society (APS)$$d2017-12-11$$n24$$p245408$$tPhysical Review B$$v96$$x2469-9950$$y2017
000841205 773__ $$0PERI:(DE-600)2844160-6$$a10.1103/PhysRevB.96.245408$$gVol. 96, no. 24, p. 245408$$n24$$p245408$$tPhysical review / B$$v96$$x2469-9950$$y2017
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.pdf$$yOpenAccess
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.gif?subformat=icon$$xicon$$yOpenAccess
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000841205 8564_ $$uhttps://juser.fz-juelich.de/record/841205/files/PhysRevB.96.245408.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000841205 909CO $$ooai:juser.fz-juelich.de:841205$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000841205 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130545$$aForschungszentrum Jülich$$b1$$kFZJ
000841205 9131_ $$0G:(DE-HGF)POF3-143$$1G:(DE-HGF)POF3-140$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Configuration-Based Phenomena$$x0
000841205 9141_ $$y2017
000841205 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000841205 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search
000841205 915__ $$0LIC:(DE-HGF)APS-112012$$2HGFVOC$$aAmerican Physical Society Transfer of Copyright Agreement
000841205 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bPHYS REV B : 2015
000841205 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000841205 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000841205 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000841205 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000841205 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000841205 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC
000841205 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000841205 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000841205 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000841205 920__ $$lyes
000841205 9201_ $$0I:(DE-Juel1)PGI-1-20110106$$kPGI-1$$lQuanten-Theorie der Materialien$$x0
000841205 9201_ $$0I:(DE-Juel1)IAS-1-20090406$$kIAS-1$$lQuanten-Theorie der Materialien$$x1
000841205 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x2
000841205 9201_ $$0I:(DE-82)080012_20140620$$kJARA-HPC$$lJARA - HPC$$x3
000841205 980__ $$ajournal
000841205 980__ $$aVDB
000841205 980__ $$aI:(DE-Juel1)PGI-1-20110106
000841205 980__ $$aI:(DE-Juel1)IAS-1-20090406
000841205 980__ $$aI:(DE-82)080009_20140620
000841205 980__ $$aI:(DE-82)080012_20140620
000841205 980__ $$aUNRESTRICTED
000841205 9801_ $$aFullTexts
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat2009
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/zaac.201200448
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.21.1450
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.7567/JJAPS.26S4.61
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/cr900040x
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/adma.201004255
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.348620
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1126/science.1221561
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1126/science.1201938
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat2330
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/adfm.201500826
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/acs.chemmater.6b02940
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/srep26724
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.2709758
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/acsami.7b00689
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.371606
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.3211991
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.122654
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.1794431
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.81.5616
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/cg200857x
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/pssr.201206387
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.4892394
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/srep23843
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.4976828
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/j.apsusc.2010.06.039
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1080/23746149.2017.1346483
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat3456
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/srep13496
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.4949011
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.69.104111
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/ic051677w
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.2901187
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.4847715
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat1807
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.73.045210
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/acs.chemmater.7b01595
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.106.025501
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/j.actamat.2015.12.010
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/srep28246
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.2387870
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.108.239603
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat1215
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.86.045212
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.108.239601
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.90.184109
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.108.195506
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/nl5011492
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.102.076102
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.2912958
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.50.1998
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.31.805
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1367-2630/9/5/153
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/nl903133w
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1142/S0218625X0300575X
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/acs.nanolett.6b02548
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.77.3865
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/0927-0256(96)00008-0
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.54.11169
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.59.1758
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.50.17953
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/adma.200700016
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.1314323
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.78.224111
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/jp401400k
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.24.864
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/j.apsusc.2012.09.017
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.1502915
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.19.1706
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.82.054411
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/S0040-6090(99)01090-1
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.65.448
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1116/1.585510
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.84.085210
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.1884248
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nphys3774
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nmat2226
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/adma.201700814
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/j.tsf.2006.11.159
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1021/cm201717z
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.83.134201
000841205 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.83.054203