DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Sungmin | - |
dc.contributor.author | Park, Pyungjin | - |
dc.contributor.author | Jang, Jesun | - |
dc.contributor.author | JHI, SEUNG HOON | - |
dc.date.accessioned | 2024-03-06T06:00:45Z | - |
dc.date.available | 2024-03-06T06:00:45Z | - |
dc.date.created | 2024-02-23 | - |
dc.date.issued | 2023-11-29 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/121600 | - |
dc.description.abstract | Two-dimensional materials are sensitive to external strain and may undergo strain-induced phase transitions depending on thickness. In particular, IrTe<sub>2</sub> has been shown to exhibit superconducting properties at nanometer-scale thickness [1]. However, as the thickness of IrTe<sub>2</sub> decreases further, it becomes susceptible to thermal strain from the substrate. Studies on monolayer IrTe<sub>2</sub> have shown that various phases appear depending on the types of substrates with respective thermal strain properties [2,3]. To see the intrinsic strain properties of monolayer IrTe<sub>2</sub> induced by thermal effect, firstly we study the stability of the phase transitions from electronic and phononic perspectives. In addition, we calculate the thermal expansion coefficient of monolayer IrTe<sub>2</sub>. Our calculations show that pristine monolayer IrTe<sub>2</sub> tends to take on a dimerized phase at temperature ~ 630 K and strain , which is not observed in bulk IrTe<sub>2</sub>. This finding suggests a possibility of engineering the phase transition of two-dimensional materials using the thermal strain with suitable substrates and of designing desired functionality of two-dimensional materials.<br/><br/><br/>References<br/>[1] S. Park et al., Nat Commun 12, 3157 (2021).<br/>[2] J. Hwang et al., Nat Commun 13, 906 (2022).<br/>[3] H. K. Kim et al., Phys. Rev. B 107, 045112 (2023). | - |
dc.language | English | - |
dc.publisher | Materials Research Society | - |
dc.relation.isPartOf | MRS Fall meeting | - |
dc.title | Ab-Initio Calculations on Thermal Strain-Induced Dimerized Phase in Monolayer IrTe2 | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.identifier.bibliographicCitation | MRS Fall meeting | - |
dc.citation.conferenceDate | 2023-11-26 | - |
dc.citation.conferencePlace | US | - |
dc.citation.title | MRS Fall meeting | - |
dc.contributor.affiliatedAuthor | Song, Sungmin | - |
dc.contributor.affiliatedAuthor | Park, Pyungjin | - |
dc.contributor.affiliatedAuthor | Jang, Jesun | - |
dc.contributor.affiliatedAuthor | JHI, SEUNG HOON | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
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