MRS Meetings and Events


EL07.09.16 2023 MRS Fall Meeting

Reveal Atomic Phase Transition via Nanomechanical Resonator

When and Where

Nov 29, 2023
8:00pm - 10:00pm

Hynes, Level 1, Hall A



Fan Fei1,Yulu Mao1,Mojue Zhang1,Dajun Zhang1,Yangchen He1,Daniel Rhodes1,Chu Ma1,Jiamian Hu1,Jun Xiao1,Ying Wang1

University of Wisconsin Madison1


Fan Fei1,Yulu Mao1,Mojue Zhang1,Dajun Zhang1,Yangchen He1,Daniel Rhodes1,Chu Ma1,Jiamian Hu1,Jun Xiao1,Ying Wang1

University of Wisconsin Madison1
The diverse interactions between lattice symmetry and layer stacking orders make transition metal dichalcogenides (TMDs) especially potentially effective to detect for investigating novel topological states and quantum phase transitions. A case in point is transition metal dichalcogenides, notable for its diverse phases: hexagonal (2H, α-phase), monoclinic (1T′, β-phase), and orthorhombic (Td, γ-phase). The 2H phase exhibits semiconductors behavior while the 1T' phase and Td phase is semimetal. Current approaches to reveal the phase transition between those phases are limited to electrical and optical approaches, in which the contrast is low [1]. For example, the 1T′ and Td phases are structurally commensurate[2]-[4], in which the structural difference refers to layer-to-layer stacking orders. In this experimental study, the phase transitions in transition metal dichalcogenides is studied by nanomechanical resonators. Phase transition is clearly revealed by the frequency shift of the resonators. Modeling has been established to qualitatively correlate the frequency of the nanomechanical resonator with the phase change. Accompanied by a high-quality factor exceeding 1000, the high sensitivity of the resonator shows small sliding transition,providing the possibility of the new application degree for 2D resonators combining with materials’ phase diagram investigation and the potentiality to extract the thermodynamics information during the phase transition.<br/>[1] Qi, Y., Naumov, P., Ali, M. et al. Superconductivity in Weyl semimetal candidate MoTe2. Nat Commun 7, 11038 (2016).<br/>[2] H. P. Hughes and R. H. Friend, “Electrical resistivity anomaly in β-MoTe 2 (metallic behaviour),” J. Phys. C Solid State Phys., vol. 11, no. 3, pp. L103–L105, Feb. 1978, doi: 10.1088/0022-3719/11/3/004.<br/>[3] K. Zhang et al., “Raman signatures of inversion symmetry breaking and structural phase transition in type-II Weyl semimetal MoTe2,” Nat. Commun., vol. 7, no. 1, p. 13552, Dec. 2016, doi: 10.1038/ncomms13552.<br/>[4] S.-Y. Chen, T. Goldstein, D. Venkataraman, A. Ramasubramaniam, and J. Yan, “Activation of New Raman Modes by Inversion Symmetry Breaking in Type II Weyl Semimetal Candidate T′-MoTe2,” Nano Lett., vol. 16, no. 9, pp. 5852–5860, Sep. 2016, doi: 10.1021/acs.nanolett.6b02666.


2D materials | thermodynamics

Symposium Organizers

Gabriela Borin Barin, Empa
Shengxi Huang, Rice University
Yuxuan Cosmi Lin, TSMC Technology Inc
Lain-Jong Li, The University of Hong Kong

Symposium Support

Montana Instruments

Oxford Instruments WITec
Raith America, Inc.

Session Chairs

Gabriela Borin Barin
Yuxuan Cosmi Lin

In this Session

Large-Area, Pulsed Laser Deposition of MoS2/a-BN Heterostructures for Back-Gate Field Effect Transistors Applications

A Study of Transport and Optical Properties of Liquid Nitrogen-Assisted Deposition of Titanium Oxynitride Thin Films

High-Performance Electromechanical Power Generation of Lithography-Free Large-Scale MoS2 Monolayer Film Harvesters

An Investigation of Lithium and Cobalt Intercalation Method in 2D Transition Metal Dichalcogenides

Effect of Hot-Wire Oxidization and Sulfur Annealing on Layered p-MoS2 for TFT Application

Photoelectrochemical Polymerization (PEP) of EDOT for Formation of Pattered PEDOT at Specific Arbitrary Regions on Hematite (α-Fe2O3)

Spatially Resolved and In Situ Electrochemical Imaging on Two-Dimensional Materials using Scanning ElectroChemical Cell Microscopy (SECCM)

Nanowire-Based Sensor Platform for Breath Analysis

Sensitive Microwave Spectroscopy of Van der Waals Materials with Coplanar Waveguides

Ultratrace PFAS Detection using Amplifying Fluorescent Polymers

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MRS publishes with Springer Nature