The Library
Pressure-induced amorphization and a new high density amorphous metallic phase in matrix-free Ge nanoparticles
Tools
Corsini, Niccolo R. C., Zhang, Yuanpeng, Little, William R., Karatutlu, Ali, Ersoy, Osman, Haynes, Peter D., Molteni, Carla, Hine, Nicholas, Hernandez, Ignacio, Gonzaez, Jesus, Rodriguez, Fernando, Brazhkin, Vadim V. and Sapelkin, Andrei (2015) Pressure-induced amorphization and a new high density amorphous metallic phase in matrix-free Ge nanoparticles. Nano Letters, 15 (11). pp. 7334-7340. doi:10.1021/acs.nanolett.5b02627 ISSN 1530-6984.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1021/acs.nanolett.5b02627
Abstract
Over the last two decades, it has been demonstrated that size effects have significant consequences for the atomic arrangements and phase behavior of matter under extreme pressure. Furthermore, it has been shown that an understanding of how size affects critical pressure-temperature conditions provides vital guidance in the search for materials with novel properties. Here, we report on the remarkable behavior of small (under ~5 nm) matrix-free Ge nanoparticles under hydrostatic compression that is drastically different from both larger nanoparticles and bulk Ge. We discover that the application of pressure drives surface-induced amorphization leading to Ge-Ge bond overcompression and eventually to a polyamorphic semiconductor-to-metal transformation. A combination of spectroscopic techniques together with ab initio simulations were employed to reveal the details of the transformation mechanism into a new high density phase-amorphous metallic Ge.
Item Type: | Journal Article | ||||||
---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
Journal or Publication Title: | Nano Letters | ||||||
Publisher: | American Chemical Society | ||||||
ISSN: | 1530-6984 | ||||||
Official Date: | 12 October 2015 | ||||||
Dates: |
|
||||||
Volume: | 15 | ||||||
Number: | 11 | ||||||
Page Range: | pp. 7334-7340 | ||||||
DOI: | 10.1021/acs.nanolett.5b02627 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Adapted As: |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |