Direct observation of melted Mott state evidenced from Raman scattering in 1T-TaS<sub>2</sub> single crystal<xref rid="cpb_27_1_017104fn1" ref-type="fn">*</xref> <fn id="cpb_27_1_017104fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 51771126 and 11774247), the Youth Foundation of Science and Technology Department of Sichuan Province, China (Grant No. 2016JQ0051), and the World First-Class University Construction Funding.</p> </fn>

Direct observation of melted Mott state evidenced from Raman scattering in 1T-TaS₂ single crystal* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 51771126 and 11774247), the Youth Foundation of Science and Technology Department of Sichuan Province, China (Grant No. 2016JQ0051), and the World First-Class University Construction Funding.

Hu Qing¹, Yin Cong¹, Zhang Leilei², Lei Li^{2, ‡}, Wang Zhengshang¹, Chen Zhiyu¹, Tang Jun^{1, 3}, Ang Ran^{1, 3, †}

(color online) (a) Second-derivative ARPES intensity of 1T-TaS₂ plotted as a function of wave vector and binding energy at 30 K and 300 K, respectively. (b) Schematic band diagram derived from the ARPES experiment and evolution of superstructure from CCDW to NCCDW phase before and after phonon excitation as a function of temperature.