Re Doping in 2D Transition Metal Dichalcogenides as a New Route to Tailor Structural Phases and Induced Magnetism

Vidya Kochat; Amey Apte; Jordan A. Hachtel; Hiroyuki Kumazoe; Aravind Krishnamoorthy; Sandhya Susarla; Juan Carlos Idrobo; Fuyuki Shimojo; Priya Vashishta; Rajiv Kalia; Aiichiro Nakano; Chandra Sekhar Tiwary; Pulickel M. Ajayan

doi:10.1002/adma.201703754

Re Doping in 2D Transition Metal Dichalcogenides as a New Route to Tailor Structural Phases and Induced Magnetism

Vidya Kochat, Amey Apte, Jordan A. Hachtel, Hiroyuki Kumazoe, Aravind Krishnamoorthy, Sandhya Susarla, Juan Carlos Idrobo, Fuyuki Shimojo, Priya Vashishta, Rajiv Kalia, Aiichiro Nakano, Chandra Sekhar Tiwary, Pulickel M. Ajayan

electron Microscopy and Microanalysis

Research output: Contribution to journal › Article › peer-review

198 Scopus citations

Abstract

Alloying in 2D results in the development of new, diverse, and versatile systems with prospects in bandgap engineering, catalysis, and energy storage. Tailoring structural phase transitions using alloying is a novel idea with implications in designing all 2D device architecture as the structural phases in 2D materials such as transition metal dichalcogenides are correlated with electronic phases. Here, this study develops a new growth strategy employing chemical vapor deposition to grow monolayer 2D alloys of Re-doped MoSe₂ with show composition tunable structural phase variations. The compositions where the phase transition is observed agree well with the theoretical predictions for these 2D systems. It is also shown that in addition to the predicted new electronic phases, these systems also provide opportunities to study novel phenomena such as magnetism which broadens the range of their applications.

Original language	English
Article number	1703754
Journal	Advanced Materials
Volume	29
Issue number	43
DOIs	https://doi.org/10.1002/adma.201703754
State	Published - Nov 20 2017

Funding

V.K. and A.A. contributed equally to this work. This work was supported by the Computational Materials Sciences Program funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC00014607. The simulations were performed at the Argonne Leadership Computing Facility under the DOE INCITE program and at the Center for High Performance Computing of the University of Southern California. Microscopy research performed as part of a user proposal at Oak Ridge National Laboratory’s Center for Nanophase Materials Sciences (CNMS), which is a U.S. Department of Energy, Office of Science User Facility (J.A.H. and J.C.I.).

Keywords

2D materials
DFT calculations
alloys
magnetic properties
phase transition

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Kochat, V., Apte, A., Hachtel, J. A., Kumazoe, H., Krishnamoorthy, A., Susarla, S., Idrobo, J. C., Shimojo, F., Vashishta, P., Kalia, R., Nakano, A., Tiwary, C. S., & Ajayan, P. M. (2017). Re Doping in 2D Transition Metal Dichalcogenides as a New Route to Tailor Structural Phases and Induced Magnetism. Advanced Materials, 29(43), Article 1703754. https://doi.org/10.1002/adma.201703754

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Re Doping in 2D Transition Metal Dichalcogenides as a New Route to Tailor Structural Phases and Induced Magnetism

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