journal article·2022

Synthesis of stable γ-phase MnS 1− x Se x nanoflakes with inversion symmetry breaking

Bo Zheng, Jun Fu, Yuanmin Zhu, Jing Liang, Yongzhi She, Junxiang Xiang, Xiang Ma, Ying Zhang, Shasha Wang, Guojing Hu, Yuehui Zhou, Yan Feng, Zhengping Fu, Nan Pan, Yalin Lu, Hualing Zeng, Meng Gu, Kaihui Liu, Bin Xiang

Nanoscale· Volume 14· Issue 45
Publisher page

Abstract

Inversion symmetry breaking plays a critical role in the formation of magnetic skyrmions. Therefore, for the application of skyrmion-based devices, it is important to develop novel engineering techniques and explore new non-centrosymmetric lattices. In this paper, we report the rational synthesis of stable γ-phase MnS1-xSex (0 ≤ x ≤ 0.45) nanoflakes with an asymmetric distribution of the elemental content, which persists on inversion symmetry breaking. The temperature dependence of resonant second-harmonic generation characterization reveals that a non-centrosymmetric crystal structure exists in our as-grown γ-phase MnS1-xSex with spatial-inversion symmetry breaking. By tuning the parameters of nucleation temperature and growth time, we produced a detailed growth phase diagram, revealing a controllable as-grown structure evolution from γ-phase wurtzite-type to α-phase rock-salt type structure of MnS1-xSex nanoflakes. Our work provides a new playground to explore novel materials that have broken inversion symmetry.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · 2D Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei, China

International Center for Quantum Design of Functional Materials (ICQD), Hefei National Laboratory for Physical Science at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 230026, Hefei, Anhui, People's Republic of China

School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China

Department of Materials Science and Engineering, Southern University of Science and Technology China, Shenzhen, China

State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, China

Department of Physics, University of Science and Technology of China, Hefei 230026, China

Funding

National Synchrotron Radiation Laboratory · Shenzhen Science and Technology Innovation Program · Guangdong Province Introduction of Innovative R&D Team · National Natural Science Foundation of China · Shenzhen Fundamental Research Program · USTC Center for Micro- and Nanoscale Research and Fabrication

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