Three-dimensional ultrafast charge-density-wave dynamics in CuTe
學年 112
學期 2
出版（發表）日期 2024-03-16
作品名稱 Three-dimensional ultrafast charge-density-wave dynamics in CuTe
作品名稱（其他語言）
著者 Hsu, Chih-en; Lin, I-an; Hsueh, Hung-chung
單位
出版者
著錄名稱、卷期、頁數 Nature Communications 15,　2386
摘要 Charge density waves (CDWs) involved with electronic and phononic sub￾systems simultaneously are a common quantum state in solid-state physics, especially in low-dimensional materials. However, CDW phase dynamics in various dimensions are yet to be studied, and their phase transition mechan￾ism is currently moot. Here we show that using the distinct temperature evolution of orientation-dependent ultrafast electron and phonon dynamics, different dimensional CDW phases are verified in CuTe. When the temperature decreases, the shrinking of c-axis length accompanied with the appearance of interchain and interlayer interactions causes the quantum fluctuations (QF) of the CDW phase until 220 K. At T < 220 K, the CDWs on the different ab-planes are finally locked with each other in anti-phase to form a CDW phase along the c-axis. This study shows the dimension evolution of CDW phases in one CDW system and their stabilized mechanisms in different temperature regimes.
關鍵字
語言 en_US
ISSN 2041-1723
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Hsueh, Hung-chung(薛宏中); Lue, Chin-shan; Luo, Chih-wei
審稿制度 是
國別 TWN
公開徵稿
出版型式 ,電子版,紙本
SDGS 優質教育