https://doi.org/10.1140/epjb/s10051-026-01143-0
Research - Condensed Matter
Numerical simulation on structural and topological transitions of GeO2 liquid under compression
1
Faculty of Non-Traditional Security, Hanoi School of Business and Management, Vietnam National University, 100000, Hanoi, Vietnam
2
Faculty of Civil Engineering, VNU University of Engineering and Technology, 100000, Hanoi, Vietnam
3
Department of Geophysics, Colorado School of Mines, 80401, Golden, CO, USA
4
Faculty of Engineering Physics, Hanoi University of Science and Technology, Hanoi, Vietnam
5
Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Vietnam
a
This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
22
October
2025
Accepted:
8
February
2026
Published online:
21
February
2026
Abstract
Molecular Dynamics simulation was performed to gain deeper insight on the effect of compression on liquid GeO2, in particular on the transition between low-density phases to high-density phases. Similarities in the increase of GeOx coordination number and the number of OGey links to the density increase allowed a characterization of the model densities at various values of pressure. The intermediate density phase displays not only an abundance in GeO5 units but also the coexistence of at least two large GeOx clusters of varying densities. Finally, the ring structures found in the regions of various densities suggest differing material properties that can arise from structural and topological heterogeneity. This work covers the gap on the effect of pressure on the micro-phase separation and ring structure in liquid germania.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
