Superconductivity and charge density wave in ZrTe3–xSex
- Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Maryland, College Park, MD (United States)
- Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China); Condensed Matter Physics and Materials Science Dept., Upton, NY (United States)
- Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)
- Brookhaven National Lab. (BNL), Upton, NY (United States); Tianjin Univ. of Technology, Tianjin (China)
Charge density wave (CDW), the periodic modulation of the electronic charge density, will open a gap on the Fermi surface that commonly leads to decreased or vanishing conductivity. On the other hand superconductivity, a commonly believed competing order, features a Fermi surface gap that results in infinite conductivity. Here we report that superconductivity emerges upon Se doping in CDW conductor ZrTe3 when the long range CDW order is gradually suppressed. Superconducting critical temperature Tc(x) in ZrTe3–xSex (0 ≤ x ≤ 0.1) increases up to 4 K plateau for 0.04 ≤ x ≤ 0.07. Further increase in Se content results in diminishing Tc and filametary superconductivity. The CDW modes from Raman spectra are observed in x = 0.04 and 0.1 crystals, where signature of ZrTe3 CDW order in resistivity vanishes. As a result, the electronic-scattering for high Tc crystals is dominated by local CDW fluctuations at high temperatures, the resistivity is linear up to highest measured T = 300 K and contributes to substantial in-plane anisotropy.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704
- OSTI ID:
- 1324285
- Report Number(s):
- BNL-112533-2016-JA; R&D Project: PM016; MA015MACA; KC0201050; KC0201010
- Journal Information:
- Scientific Reports, Vol. 6; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Charge density wave quantum critical point with strong enhancement of superconductivity
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journal | July 2017 |
Unique features of the generation–recombination noise in quasi-one-dimensional van der Waals nanoribbons
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journal | January 2018 |
Fast and controlled growth of two-dimensional layered ZrTe 3 nanoribbons by chemical vapor deposition
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journal | January 2019 |
Collective excitations in 2D atomic layers: Recent perspectives
|
journal | January 2020 |
Pressure-induced enhancement in the superconductivity of ZrTe 3
|
journal | August 2018 |
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