• Something wrong with this record ?

Franckeite as an Exfoliable Naturally Occurring Topological Insulator

WS. Paz, MG. Menezes, NN. Batista, G. Sanchez-Santolino, M. Velický, M. Varela, RB. Capaz, JJ. Palacios

. 2021 ; 21 (18) : 7781-7788. [pub] 20210830

Language English Country United States

Document type Journal Article, Research Support, Non-U.S. Gov't

Persistent link   https://www.medvik.cz/link/bmc22003691

Franckeite is a natural superlattice composed of two alternating layers of different composition which has shown potential for optoelectronic applications. In part, the interest in franckeite lies in its layered nature which makes it easy to exfoliate into very thin heterostructures. Not surprisingly, its chemical composition and lattice structure are so complex that franckeite has escaped screening protocols and high-throughput searches of materials with nontrivial topological properties. On the basis of density functional theory calculations, we predict a quantum phase transition originating from stoichiometric changes in one of franckeite composing layers (the quasihexagonal one). While for a large concentration of Sb, franckeite is a sequence of type-II semiconductor heterojunctions, for a large concentration of Sn, these turn into type-III, much alike InAs/GaSb artificial heterojunctions, and franckeite becomes a strong topological insulator. Transmission electron microscopy observations confirm that such a phase transition may actually occur in nature.

References provided by Crossref.org

000      
00000naa a2200000 a 4500
001      
bmc22003691
003      
CZ-PrNML
005      
20220127145959.0
007      
ta
008      
220113s2021 xxu f 000 0|eng||
009      
AR
024    7_
$a 10.1021/acs.nanolett.1c02742 $2 doi
035    __
$a (PubMed)34461016
040    __
$a ABA008 $b cze $d ABA008 $e AACR2
041    0_
$a eng
044    __
$a xxu
100    1_
$a Paz, Wendel S $u Departamento de Física, Universidade Federal do Espírito Santo, Vitória, ES 29075-910, Brazil $u Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil
245    10
$a Franckeite as an Exfoliable Naturally Occurring Topological Insulator / $c WS. Paz, MG. Menezes, NN. Batista, G. Sanchez-Santolino, M. Velický, M. Varela, RB. Capaz, JJ. Palacios
520    9_
$a Franckeite is a natural superlattice composed of two alternating layers of different composition which has shown potential for optoelectronic applications. In part, the interest in franckeite lies in its layered nature which makes it easy to exfoliate into very thin heterostructures. Not surprisingly, its chemical composition and lattice structure are so complex that franckeite has escaped screening protocols and high-throughput searches of materials with nontrivial topological properties. On the basis of density functional theory calculations, we predict a quantum phase transition originating from stoichiometric changes in one of franckeite composing layers (the quasihexagonal one). While for a large concentration of Sb, franckeite is a sequence of type-II semiconductor heterojunctions, for a large concentration of Sn, these turn into type-III, much alike InAs/GaSb artificial heterojunctions, and franckeite becomes a strong topological insulator. Transmission electron microscopy observations confirm that such a phase transition may actually occur in nature.
650    _2
$a transmisní elektronová mikroskopie $7 D046529
650    _2
$a změna skupenství $7 D044367
650    12
$a polovodiče $7 D012666
655    _2
$a časopisecké články $7 D016428
655    _2
$a práce podpořená grantem $7 D013485
700    1_
$a Menezes, Marcos G $u Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil
700    1_
$a Batista, Nathanael N $u Departamento de Física, Universidade Federal do Espírito Santo, Vitória, ES 29075-910, Brazil $u Instituto Federal do Espirito Santo, Cariacica, ES 29150-410, Brazil
700    1_
$a Sanchez-Santolino, Gabriel $u Facultad de Ciencias Físicas & Instituto Plurisciplinar. Universidad Complutense de Madrid 28040 Madrid, Spain
700    1_
$a Velický, Matěj $u J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
700    1_
$a Varela, María $u Facultad de Ciencias Físicas & Instituto Plurisciplinar. Universidad Complutense de Madrid 28040 Madrid, Spain
700    1_
$a Capaz, Rodrigo B $u Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil
700    1_
$a Palacios, Juan José $u Departamento de Física de la Materia Condensada, Instituto Nicolás Cabrera (INC), and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
773    0_
$w MED00006609 $t Nano letters $x 1530-6992 $g Roč. 21, č. 18 (2021), s. 7781-7788
856    41
$u https://pubmed.ncbi.nlm.nih.gov/34461016 $y Pubmed
910    __
$a ABA008 $b sig $c sign $y p $z 0
990    __
$a 20220113 $b ABA008
991    __
$a 20220127145956 $b ABA008
999    __
$a ok $b bmc $g 1751214 $s 1154840
BAS    __
$a 3
BAS    __
$a PreBMC
BMC    __
$a 2021 $b 21 $c 18 $d 7781-7788 $e 20210830 $i 1530-6992 $m Nano letters $n Nano Lett $x MED00006609
LZP    __
$a Pubmed-20220113

Find record

Citation metrics

Archiving options