| 1. Identity statement | ||||
| Reference Type | Conference Abstract (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3PGF6FS | |||
| Repository | sid.inpe.br/mtc-m21b/2017/08.25.17.28 | |||
| Last Update | 2017:12.21.15.45.21 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2017/08.25.17.28.59 | |||
| Metadata Last Update | 2018:06.04.02.27.45 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | NakamatsuPeSoOkFoRaAb:2017:InTrPr | |||
| Title | Investigation of transport properties on PbTe/Pb1-xSnxTe heterostructures  | |||
| Year | 2017 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CN | |||
| Number of Files | 1 | |||
| Size | 2022 KiB | |||
| 2. Context | ||||
| Author | 1 Nakamatsu, Sandra 2 Peres, Marcelos L. 3 Soares, Demétrio A. W. 4 Okassaki, Anderson K. 5 Fornari, Celso Israel 6 Rappl, Paulo Henrique de Oliveira 7 Abramof, Eduardo | |||
| Resume Identifier | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JJ37 7 8JMKD3MGP5W/3C9JGUH | |||
| Group | 1 2 3 4 5 CMS-ETES-SESPG-INPE-MCTIC-GOV-BR 6 LABAS-COCTE-INPE-MCTIC-GOV-BR 7 LABAS-COCTE-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 2 3 4 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 3 4 5 celso.fornari@inpe.br 6 paulo.rappl@inpe.br 7 eduardo.abramof@inpe.br | |||
| Conference Name | Brazilian Workshop on Semiconductor Physics, 18 (BWSP) | |||
| Conference Location | Maresias, SP | |||
| Date | 14-18 ago. | |||
| Book Title | Resumos | |||
| History (UTC) | 2017-08-25 17:29:28 :: simone -> administrator :: 2017 2018-01-09 11:47:08 :: administrator -> simone :: 2017 2018-01-09 18:25:52 :: simone -> administrator :: 2017 2018-06-04 02:27:45 :: administrator -> simone :: 2017 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Abstract | PbTe compounds have been used for the development of infrared photodetectors and diode lasers [1] over the decades. Introduction of Sn atoms makes this material even more interesting for practical applications as well as from the basics physics point of view. According to the band inversion model, the gap of Pb1-xSnxTe decreases as Sn composition increases, and vanishes for an intermediate alloy composition. Further increasing of Sn concentration leads to the band inversion and the energy gap starts to increase up to the SnTe value. Very recently, it was discovered that in the region of band inversion, transition from metallic to crystalline topological insulator (TCI) occurs [3]. Recent theoretical work demonstrated that the PbTe/Pb1-xSnxTe heterostructures can present topological states in the interface of the heterojunction. Such an interface of PbTe and Pb1−xSnxTe, at which four Dirac cones appear, is analogous to the surface of a weak TI [4]. In this work we perform electrical characterization in PbTe/Pb1-xSnxTe films for different values of x close to the band inversion in order to verify the existence a single gapless helical state in the [111] direction at the heterostructure interface. Morfological characterization will also be performed in order to provide a detailed view of these new structures. We hope that this work contribute to a better comprehension of the nature of topological insulators based on IV-VI compounds. Acknowledgments: The authors would like to acknowledge CAPES and FAPEMIG for support. References: [1] I. U. Arachchige and M. G. Kanatzidis, Nano Lett. 9 (4), 1583 (2009); [2] R. Jaramillo et al, Jour. Appl. Phys. 119, 035101 (2016); [3] P. Dziawa, Nature Materials 11, 1023 (2012). | |||
| Area | FISMAT | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Investigation of transport... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CMS > Investigation of transport... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3PGF6FS | |||
| zipped data URL | http://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3PGF6FS | |||
| Language | en | |||
| Target File | abramof_investigation.pdf | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | 8JMKD3MGP3W34P/3NAEMRH | |||
| Next Higher Units | 8JMKD3MGPCW/3ESR3H2 8JMKD3MGPCW/3F358GL | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.57.50 5 sid.inpe.br/mtc-m21/2012/07.13.14.44.57 4 | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarytype type url volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||