Multi-band magnetotransport in exfoliated thin films of Cu x Bi2Se3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912828" target="_blank" >RIV/00216275:25310/18:39912828 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/article/10.1088/1361-648X/aab193/meta" target="_blank" >http://iopscience.iop.org/article/10.1088/1361-648X/aab193/meta</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-648X/aab193" target="_blank" >10.1088/1361-648X/aab193</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multi-band magnetotransport in exfoliated thin films of Cu x Bi2Se3

Popis výsledku v původním jazyce

We report magnetotransport studies in thin (&lt;100 nm) exfoliated films of Cu x Bi2Se3 and we detect an unusual electronic transition at low temperatures. Bulk crystals show weak superconductivity with K and a possible electronic phase transition around 200 K. Following exfoliation, superconductivity is supressed and a strongly temperature dependent multi-band conductivity is observed for T &lt; 30 K. This transition between competing conducting channels may be enhanced due to the presence of electronic ordering, and could be affected by the presence of an effective internal stress due to Cu intercalation. By fitting to the weak antilocalisation conductivity correction at low magnetic fields we confirm that the low temperature regime maintains a quantum phase coherence length nm indicating the presence of topologically protected surface states.

Název v anglickém jazyce

Multi-band magnetotransport in exfoliated thin films of Cu x Bi2Se3

Popis výsledku anglicky

We report magnetotransport studies in thin (&lt;100 nm) exfoliated films of Cu x Bi2Se3 and we detect an unusual electronic transition at low temperatures. Bulk crystals show weak superconductivity with K and a possible electronic phase transition around 200 K. Following exfoliation, superconductivity is supressed and a strongly temperature dependent multi-band conductivity is observed for T &lt; 30 K. This transition between competing conducting channels may be enhanced due to the presence of electronic ordering, and could be affected by the presence of an effective internal stress due to Cu intercalation. By fitting to the weak antilocalisation conductivity correction at low magnetic fields we confirm that the low temperature regime maintains a quantum phase coherence length nm indicating the presence of topologically protected surface states.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physics: Condensed Matter

ISSN

0953-8984

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

"155302-1"-"155302-5"

Kód UT WoS článku

000427647000002

EID výsledku v databázi Scopus

2-s2.0-85044823300