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Coherent phonon study of (GeTe)l(Sb2Te3)m interfacial phase change memory materials
https://aist.repo.nii.ac.jp/records/2002016
https://aist.repo.nii.ac.jp/records/2002016de5a2560-ef1e-4865-888a-9de0d45b1b20
| Item type | Research Data (v9)(1) | |||||||||||||||
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| PubDate | 2014-01-01 | |||||||||||||||
| Data name | ||||||||||||||||
| Title | Coherent phonon study of (GeTe)l(Sb2Te3)m interfacial phase change memory materials | |||||||||||||||
| Language | en | |||||||||||||||
| Description of data | ||||||||||||||||
| Description Type | Abstract | |||||||||||||||
| Description | The time-resolved reflectivity measurements were carried out on the interfacial phase change memory (iPCM) materials ([(GeTe)2(Sb2Te3)4]8 and [(GeTe)2(Sb2Te3)1]20) as well as conventional Ge2Sb2Te5 alloy at room temperature and above the RESET-SET phase transition temperature. In the high-temperature phase, coherent phonons were clearly observed in the iPCM samples while drastic attenuation of coherent phonons was induced in the alloy. This difference strongly suggests the atomic rearrangement during the phase transition in iPCMs is much smaller than that in the alloy. These results are consistent with the unique phase transition model in which a quasi-one-dimensional displacement of Ge atoms occurs for iPCMs and a conventional amorphous-crystalline phase transition takes place for the alloy. | |||||||||||||||
| Language | en | |||||||||||||||
| Author (Creator) name |
牧野 孝太郎
× 牧野 孝太郎
× 齊藤 雄太
× Fons James Paul
× Kolobov Alexander
× 中野 隆志
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| Access Rights | ||||||||||||||||
| Access Rights | open access | |||||||||||||||
| Access Rights URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||
| APC | ||||||||||||||||
| APC | Not required | |||||||||||||||
| Rights Holder | ||||||||||||||||
| Right Holder Name | 牧野 孝太郎 | |||||||||||||||
| Language | en | |||||||||||||||
| Publisher | ||||||||||||||||
| Publisher | AMER INST PHYSICS | |||||||||||||||
| Language | en | |||||||||||||||
| Date | ||||||||||||||||
| Date | 2014-01-01 | |||||||||||||||
| Date Type | Issued | |||||||||||||||
| Language | ||||||||||||||||
| Language | eng | |||||||||||||||
| Resource Type | ||||||||||||||||
| Resource Type Identifier | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| Resource Type | journal article | |||||||||||||||
| Identifier | ||||||||||||||||
| Identifier | 10.1063/1.4897997 | |||||||||||||||
| Identifier Type | DOI | |||||||||||||||
| Relation | ||||||||||||||||
| Relation Type | isVersionOf | |||||||||||||||
| Identifier Type | URI | |||||||||||||||
| Related Identifier | http://aip.scitation.org/doi/full/10.1063/1.4897997 | |||||||||||||||
| Language | ja | |||||||||||||||
| Related Title | 関連 URI | |||||||||||||||
| Source Title | ||||||||||||||||
| Source Title | APPLIED PHYSICS LETTERS | |||||||||||||||
| Language | en | |||||||||||||||
| Volume Number | ||||||||||||||||
| Volume | 105 | |||||||||||||||
| Page Start | ||||||||||||||||
| Start Page | 151902_1 | |||||||||||||||
| Page End | ||||||||||||||||
| End Page | 151902_4 | |||||||||||||||
