تقرير
Short-range phase coherence and origin of the 1T-TiSe2 charge density wave
| العنوان: | Short-range phase coherence and origin of the 1T-TiSe2 charge density wave |
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| المؤلفون: | Hildebrand, B., Jaouen, T., Didiot, C., Razzoli, E., Monney, G., Mottas, M. -L., Ubaldini, A., Berger, H., Barreteau, C., Beck, H., Bowler, D. R., Aebi, P. |
| المصدر: | Phys. Rev. B 93, 125140 (2016) |
| سنة النشر: | 2016 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | The impact of variable Ti self-doping on the 1T-TiSe2 charge density wave (CDW) is studied by scanning tunneling microscopy. Supported by density functional theory we show that agglomeration of intercalated-Ti atoms acts as preferential nucleation centers for the CDW that breaks up in phaseshifted CDW domains whose size directly depends on the intercalated-Ti concentration and which are separated by atomically-sharp phase boundaries. The close relationship between the diminution of the CDW domain size and the disappearance of the anomalous peak in the temperature dependent resistivity allows to draw a coherent picture of the 1T-TiSe2 CDW phase transition and its relation to excitons. Comment: 5 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.93.125140 |
| URL الوصول: | http://arxiv.org/abs/1602.04972 |
| رقم الأكسشن: | edsarx.1602.04972 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.93.125140 |
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