| Autor: |
Kogar, A, de la Pena, GA, Lee, Sangjun, Fang, Y, Sun, SX-L, Lioi, DB, Karapetrov, G, Finkelstein, KD, Ruff, JPC, Abbamonte, P, Rosenkranz, S |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Physical review letters, vol 118, iss 2 |
| Popis: |
X-ray diffraction was employed to study the evolution of the charge density wave (CDW) in Cu_{x}TiSe_{2} as a function of copper intercalation in order to clarify the relationship between the CDW and superconductivity. The results show a CDW incommensuration arising at an intercalation value coincident with the onset of superconductivity at around x=0.055(5). Additionally, it was found that the charge density wave persists to higher intercalant concentrations than previously assumed, demonstrating that the CDW does not terminate inside the superconducting dome. A charge density wave peak was observed in samples up to x=0.091(6), the highest copper concentration examined in this study. The phase diagram established in this work suggests that charge density wave incommensuration may play a role in the formation of the superconducting state. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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