Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384264407> ?p ?o ?g. }
- W4384264407 endingPage "100403" @default.
- W4384264407 startingPage "100403" @default.
- W4384264407 abstract "GaGeTe is a layered topological semimetal that has been recently found to exist in at least two different polytypes, α-GaGeTe (R3¯m) and β-GaGeTe (P63mc). Here we report a joint experimental and theoretical study of the structural, vibrational, and electronic properties of these two polytypes in high-pressure conditions. Both polytypes show anisotropic compressibility and two phase transitions, above 7 and 15 GPa, respectively, as confirmed by XRD and Raman spectroscopy measurements. Although the nature of the high-pressure phases could not be confirmed, comparison with other chalcogenides and total-energy calculations allow us to propose possible high-pressure phases for both polytypes with an increase in coordination for Ga and Ge atoms from 4 to 6. In particular, the simplification of the X-ray pattern for both polytypes above 15 GPa suggests a transition to a structure of relatively higher symmetry than the original one. This result is consistent with the rocksalt-like high-pressure phases observed in parent III-VI semiconductors, such as GaTe, GaSe, and InSe. Pressure-induced amorphization is observed upon pressure release. The electronic band structures of α-GaGeTe and β-GaGeTe and their pressure dependence also show similarities to III-VI semiconductors, thus suggesting that the germanene-like sublayer induces a semimetallic character in both GaGeTe polytypes. Above 3 GPa, both polytypes lose their topological features, due to the opening of the direct band gap, while the reduction of the interlayer space increases the thermal conductivity at high pressure." @default.
- W4384264407 created "2023-07-14" @default.
- W4384264407 creator A5002222656 @default.
- W4384264407 creator A5006327731 @default.
- W4384264407 creator A5009379833 @default.
- W4384264407 creator A5011908816 @default.
- W4384264407 creator A5013623035 @default.
- W4384264407 creator A5018444915 @default.
- W4384264407 creator A5018456110 @default.
- W4384264407 creator A5037448074 @default.
- W4384264407 creator A5049357016 @default.
- W4384264407 creator A5051557883 @default.
- W4384264407 creator A5058096794 @default.
- W4384264407 creator A5059375836 @default.
- W4384264407 creator A5061290933 @default.
- W4384264407 creator A5065811119 @default.
- W4384264407 creator A5068212770 @default.
- W4384264407 creator A5072588959 @default.
- W4384264407 creator A5088363600 @default.
- W4384264407 date "2023-08-01" @default.
- W4384264407 modified "2023-10-18" @default.
- W4384264407 title "Structural, vibrational, and electronic behavior of two GaGeTe polytypes under compression" @default.
- W4384264407 cites W1531219050 @default.
- W4384264407 cites W1828239661 @default.
- W4384264407 cites W1965591120 @default.
- W4384264407 cites W1966150059 @default.
- W4384264407 cites W1966590971 @default.
- W4384264407 cites W1970127494 @default.
- W4384264407 cites W1971051133 @default.
- W4384264407 cites W1973376695 @default.
- W4384264407 cites W1977825070 @default.
- W4384264407 cites W1979544533 @default.
- W4384264407 cites W1979733358 @default.
- W4384264407 cites W1980223044 @default.
- W4384264407 cites W1981247431 @default.
- W4384264407 cites W1981368803 @default.
- W4384264407 cites W1991432121 @default.
- W4384264407 cites W1997234284 @default.
- W4384264407 cites W2002720449 @default.
- W4384264407 cites W2007395042 @default.
- W4384264407 cites W2010311257 @default.
- W4384264407 cites W2016168218 @default.
- W4384264407 cites W2016317651 @default.
- W4384264407 cites W2019671714 @default.
- W4384264407 cites W2031028572 @default.
- W4384264407 cites W2035695694 @default.
- W4384264407 cites W2036113194 @default.
- W4384264407 cites W2042283068 @default.
- W4384264407 cites W2044298810 @default.
- W4384264407 cites W2051681857 @default.
- W4384264407 cites W2057505827 @default.
- W4384264407 cites W2065152095 @default.
- W4384264407 cites W2068972463 @default.
- W4384264407 cites W2069115098 @default.
- W4384264407 cites W2072419223 @default.
- W4384264407 cites W2077983279 @default.
- W4384264407 cites W2089290476 @default.
- W4384264407 cites W2089742875 @default.
- W4384264407 cites W2094819137 @default.
- W4384264407 cites W2095698889 @default.
- W4384264407 cites W2111053029 @default.
- W4384264407 cites W2113427243 @default.
- W4384264407 cites W2128818414 @default.
- W4384264407 cites W2315294496 @default.
- W4384264407 cites W2465352979 @default.
- W4384264407 cites W2494393056 @default.
- W4384264407 cites W2561368924 @default.
- W4384264407 cites W2596954985 @default.
- W4384264407 cites W2606532814 @default.
- W4384264407 cites W2743500292 @default.
- W4384264407 cites W2770124676 @default.
- W4384264407 cites W2802523997 @default.
- W4384264407 cites W2906329573 @default.
- W4384264407 cites W2924696740 @default.
- W4384264407 cites W2946365908 @default.
- W4384264407 cites W2994919482 @default.
- W4384264407 cites W3004724621 @default.
- W4384264407 cites W3101558736 @default.
- W4384264407 cites W3189731156 @default.
- W4384264407 cites W4200212542 @default.
- W4384264407 cites W4281775429 @default.
- W4384264407 cites W4283219747 @default.
- W4384264407 cites W4297897121 @default.
- W4384264407 doi "https://doi.org/10.1016/j.mtadv.2023.100403" @default.
- W4384264407 hasPublicationYear "2023" @default.
- W4384264407 type Work @default.
- W4384264407 citedByCount "0" @default.
- W4384264407 crossrefType "journal-article" @default.
- W4384264407 hasAuthorship W4384264407A5002222656 @default.
- W4384264407 hasAuthorship W4384264407A5006327731 @default.
- W4384264407 hasAuthorship W4384264407A5009379833 @default.
- W4384264407 hasAuthorship W4384264407A5011908816 @default.
- W4384264407 hasAuthorship W4384264407A5013623035 @default.
- W4384264407 hasAuthorship W4384264407A5018444915 @default.
- W4384264407 hasAuthorship W4384264407A5018456110 @default.
- W4384264407 hasAuthorship W4384264407A5037448074 @default.
- W4384264407 hasAuthorship W4384264407A5049357016 @default.
- W4384264407 hasAuthorship W4384264407A5051557883 @default.