Field-induced dielectric response saturation in $$o$$ -TaS3
Journal Article
·
· Journal of Physics. Condensed Matter
- Tianjin Univ. of Technology, Tianjing (China). School of Materials Science and Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics; Tianjin Univ. of Technology, Tianjing (China). Key Lab. of Display Materials and Photoelectric Devices
- Tianjin Univ. of Technology, Tianjing (China). School of Materials Science and Engineering; Tianjin Key Lab for Photoelectric Materials and Devices, Tianjin (China)
- Tianjin Univ. of Technology, Tianjing (China). School of Materials Science and Engineering
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics; Chinese Academy of Sciences (CAS), Hefei (China). Key Lab. of Materials Physics, Inst. of Solid State Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics
The temperature and electric field dependent conductivity spectra of o-TaS3 sample with 10 μm2 in cross section were measured. Besides the classical electric threshold ET₋Cl, we observed another novel threshold ET₋N at a larger electric field, where an S-shaped I-V relation revealed. The appearance of ET₋N may be due to the establishment of coherence among small charge-density- wave domains. Under a stable field E > ET-N, a sharp dispersion emerged below kHz. At a fixed temperature, the scattering rate of the charged condensate was extremely small and decreased with increasing field. With decreasing temperature, the scattering Fröhlic-mode conductivity would be consistent with the meta-stable state.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation of China
- Grant/Contract Number:
- SC00112704; 10704054
- OSTI ID:
- 1336217
- Report Number(s):
- BNL-113240-2016-JA; R&D Project: PM016; KC0201050
- Journal Information:
- Journal of Physics. Condensed Matter, Vol. 28, Issue 39; ISSN 0953-8984
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 3 works
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