The Intermediate Phase in Ternary GexAsxSe1-2x Glasses
| dc.creator | Qu, Tao | |
| dc.creator | Georgiev, D. G. | |
| dc.creator | Boolchand, P. | |
| dc.creator | Micoulaut, M. | |
| dc.date | 2003-08-04 | |
| dc.date.accessioned | 2026-07-07T02:52:45Z | |
| dc.date.available | 2026-07-07T02:52:45Z | |
| dc.description | Melt-quenched AsxGexSe1-2x glasses over the composition range, 0 < x < 0.26, are examined in Raman scattering, T-modulated Differential Scanning Calorimetry (MDSC), and 119Sn Mossbauer spectroscopy measurements. The non-reversing enthalpy near Tg, DHnr(x), accessed from MDSC shows a global minimum (~ 0) in the xc(1) = 0.09 < x < xc(2) = 0.16 range, and increases by an order of magnitude both at x < xc(1) and at x > xc(2). Raman mode frequency of corner-sharing Ge(Se1/2)4 tetrahedra studied as a function of x, also shows three distinct regimes (or power-laws, p) that coincide with DHnr(x) trends. These regimes are identified with mechanically floppy (x < xc(1)), intermediate (xc(1) < x < xc(2)), and stressed-rigid (x > xc(2)) phases. The Raman elasticity power-law in the intermediate phase, p1 = 1.04(3), and in the stressed rigid phase, p2= 1.52(5), suggest effective dimensionalities of d = 2 and 3 respectively. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0308051 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0308051 | |
| dc.identifier | Mater. Res. Soc. Symp. Proc. vol. 754, CC8.1.1 (2003) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/21958 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | The Intermediate Phase in Ternary GexAsxSe1-2x Glasses | |
| dc.type | text |