BROWSE

Related Scientist

Researcher

나노 구조 물리 연구단
나노구조물리 연구단
more info

Superconductivity in Te-deficient polymorphic MoTe2-x and its derivatives: rich structural and electronic phase transitions

Cited 0 time in webofscience Cited 0 time in scopus
20 Viewed 2 Downloaded
Title
Superconductivity in Te-deficient polymorphic MoTe2-x and its derivatives: rich structural and electronic phase transitions
Author(s)
Se Hwang Kang; Ho Sung Yu; Jaeyoon Baik; Heejun Yang; Young Hee Lee; Suyeon Cho; Sung Wng Kim
Publication Date
2018-07
Journal
2D MATERIALS, v.5, no.3, pp.031014 -
Publisher
IOP PUBLISHING LTD
Abstract
The group 6 transition metal dichalcogenides (TMDs) have been received great attentions due to intriguing superconducting states correlated with structural uncertainty and electronic complexity. Here, we synthesized Te-deficient polycrystals of semimetallic MoTe2-x and its derivatives (Mo(1-y)TM(y)Te(2-x)Ch(x)(TM: Nb, Mn and V, Ch: P)), and investigated the structural and electronic phase transitions. It was found that all Te-deficient semimetallic phases (monoclinic 1T', hexagonal 2H and rhombohedral 3R) exhibited the superconducting transition, in which 2H and 3R structures were evolved in Nb-substituted Mo1-yNbyTe2-x (y = 0.4 for 2H, 0.6 for 3R), respectively. Moreover, we found that the superconducting state of 2H-and 3R-Mo1-yNbyTe2-x appears at the vicinity of the transition from insulator to semimetal regime with the increased electron concentration via TM substitution and Te-deficiency. It is revealed that all superconducting 1T'-, 2H-and 3R-Mo(1-y)TM(y)Te(2-x)Ch(x) semimetals show the half-dome shaped superconducting phase diagram with respect to the electron concentration and TM substitution © 2018 IOP Publishing Ltd
URI
https://pr.ibs.re.kr/handle/8788114/5536
ISSN
2053-1583
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
07 Kang_2018_2D_Mater._5_031014 (Superconductivity in Te-deficient).pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse