Pressure-induced Superconductivity and Structure Phase Transition in Pt2HgSe3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000277" target="_blank" >RIV/00025798:_____/21:00000277 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nature.com/npjquantmats/journal-information" target="_blank" >https://www.nature.com/npjquantmats/journal-information</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41535-021-00402-w" target="_blank" >10.1038/s41535-021-00402-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pressure-induced Superconductivity and Structure Phase Transition in Pt2HgSe3

Popis výsledku v původním jazyce

Recently monolayer jacutingaite (Pt2HgSe3), a naturally occurring exfoliable mineral, discovered in Brazil in 2008, has been theoretically predicted as a candidate quantum spin Hall system with a 0.5 eV band gap, while the bulk form is one of only a few known dual-topological insulators which may host different surface states protected by symmetries. In this work, we systematically investigate both structure and electronic evolution of bulk Pt2HgSe3 under high pressure up to 96 GPa. The nontrivial topology persists up to the structural phase transition observed in the high-pressure regime. Interestingly, we found that this phase transition is accompanied by the appearance of superconductivity at around 55 GPa and the critical transition temperature Tc increases with applied pressure. Our results demonstrate that Pt2HgSe3 with nontrivial topology of electronic states displays new ground states upon compression and raises potentials in application to the next-generation spintronic devices.

Název v anglickém jazyce

Pressure-induced Superconductivity and Structure Phase Transition in Pt2HgSe3

Popis výsledku anglicky

Recently monolayer jacutingaite (Pt2HgSe3), a naturally occurring exfoliable mineral, discovered in Brazil in 2008, has been theoretically predicted as a candidate quantum spin Hall system with a 0.5 eV band gap, while the bulk form is one of only a few known dual-topological insulators which may host different surface states protected by symmetries. In this work, we systematically investigate both structure and electronic evolution of bulk Pt2HgSe3 under high pressure up to 96 GPa. The nontrivial topology persists up to the structural phase transition observed in the high-pressure regime. Interestingly, we found that this phase transition is accompanied by the appearance of superconductivity at around 55 GPa and the critical transition temperature Tc increases with applied pressure. Our results demonstrate that Pt2HgSe3 with nontrivial topology of electronic states displays new ground states upon compression and raises potentials in application to the next-generation spintronic devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

npj Quantum Materials

ISSN

2397-4648

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

1 : 98

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

nestránkováno

Kód UT WoS článku

000727309600001

EID výsledku v databázi Scopus

2-s2.0-85120906527