Photoinduced intragap excitations in the incommensurate charge density wave phase of Rb0.3MoO3

Autor:	Isamu Yamamoto, Junpei Azuma, Emi Koga, Kazuki Matsuo, Makoto Maki
Rok vydání:	2021
Předmět:	Physics Condensed matter physics Impurity Peierls transition Photoemission spectroscopy Condensed Matter::Superconductivity Phase (matter) Relaxation (NMR) General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Transient (oscillation) Electron dynamics Charge density wave
Zdroj:	Physics Letters A. 412:127576
ISSN:	0375-9601
DOI:	10.1016/j.physleta.2021.127576
Popis:	Using time- and angle-resolved photoemission spectroscopy, we investigate the photoexcited electron dynamics in a prototypical charge density wave (CDW) material, Rb0.3MoO3. We observe a pronounced slow relaxation component within the CDW-gap energies. This anomalously slow dynamics is independent of the wave number, and cannot be explained by the presence of impurities. We propose that phase-coherent domains are temporarily established after a transient closure of the CDW gap, and that the intragap excitations are attributed to relaxation of the domain boundaries.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ddafb0f80f2e1726bb8befc083dd9ec7 https://doi.org/10.1016/j.physleta.2021.127576 Zobrazit plný text záznamu Full Text from ScienceDirect