Giant Rashba splitting in PtTe/PtTe2 heterostructure

Runfa Feng, Yang Zhang, Jiaheng Li, Qian Li, Changhua Bao, Hongyun Zhang, Wanying Chen, Xiao Tang, Ken Yaegashi, Katsuaki Sugawara, Takafumi Sato, Wenhui Duan, Pu Yu () and Shuyun Zhou ()
Additional contact information
Runfa Feng: Tsinghua University
Yang Zhang: Tsinghua University
Jiaheng Li: Tsinghua University
Qian Li: Tsinghua University
Changhua Bao: Tsinghua University
Hongyun Zhang: Tsinghua University
Wanying Chen: Tsinghua University
Xiao Tang: Tsinghua University
Ken Yaegashi: Tohoku University
Katsuaki Sugawara: Tohoku University
Takafumi Sato: Tohoku University
Wenhui Duan: Tsinghua University
Pu Yu: Tsinghua University
Shuyun Zhou: Tsinghua University

Nature Communications, 2025, vol. 16, issue 1, 1-8

Abstract: Abstract Achieving a large spin splitting is highly desirable for spintronic devices, which often requires breaking of the inversion symmetry. However, many atomically thin films are centrosymmetric, making them unsuitable for spintronic applications. Here, we report a strategy to achieve inversion symmetry breaking from a centrosymmetric transition metal dichalcogenide (TMDC) bilayer PtTe2, leading to a giant Rashba spin splitting. Specifically, the thermal annealing turns one layer of PtTe2 sample into a transition metal monochalcogenide (TMMC) PtTe through Te extraction, thus forming PtTe/PtTe2 heterostructure with inversion symmetry breaking. In this naturally-formed PtTe/PtTe2 heterostructure, we observe a giant Rashba spin splitting with Rashba coefficient of αR = 1.8 eV ⋅ Å, as revealed by spin- and angle-resolved photoemission spectroscopy measurements. Our work demonstrates a convenient and effective pathway for achieving pronounced Rashba splitting in centrosymmetric TMDC thin films by creating TMMC/TMDC heterostructure, thereby extending their potential applications to spintronics.

Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-57835-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57835-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-57835-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().