Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex

Cui, Shan; He, Lan -Po; Hong, Xiao -Chen; Zhu, Xiang -De; Petrovic, Cedomir; Li, Shi -Yan

doi:10.1088/1674-1056/25/7/077403

Title: Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe_3–xSe_x

Full Record
Other Related Research

Abstract

It was found that selenium doping can suppress the charge-density-wave (CDW) order and induce bulk superconductivity in ZrTe₃. The observed superconducting dome suggests the existence of a CDW quantum critical point (QCP) in ZrTe_3–x Se_x near x ≈ 0.04. To elucidate the superconducting state near the CDW QCP, we measure the thermal conductivity of two ZrTe_3–x Se_x single crystals (x = 0.044 and 0.051) down to 80 mK. For both samples, the residual linear term κ₀/T at zero field is negligible, which is a clear evidence for nodeless superconducting gap. Furthermore, the field dependence of κ₀/T manifests a multigap behavior. Lastly, these results demonstrate multiple nodeless superconducting gaps in ZrTe_3–x Se_x, which indicates conventional superconductivity despite of the existence of a CDW QCP.

Authors:

Cui, Shan ^[1]; He, Lan -Po ^[1]; Hong, Xiao -Chen ^[1]; Zhu, Xiang -De ^[2]; Petrovic, Cedomir ^[3]; Li, Shi -Yan ^[4]

Fudan Univ., Shanghai (China)
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)
Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)

Publication Date:: Thu Jun 09 00:00:00 EDT 2016

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1345739

Report Number(s):: BNL-113579-2017-JA
Journal ID: ISSN 1674-1056; R&D Project: PM016; KC0201050

Grant/Contract Number:: SC00112704

Resource Type:: Accepted Manuscript

Journal Name:: Chinese Physics. B

Additional Journal Information:: Journal Volume: 25; Journal Issue: 7; Journal ID: ISSN 1674-1056

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; superconductivity; charge-density-wave order; thermal transport measurement; gap structure

Citation Formats


                    Cui, Shan, He, Lan -Po, Hong, Xiao -Chen, Zhu, Xiang -De, Petrovic, Cedomir, and Li, Shi -Yan. Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex.  United States: N. p., 2016. 
Web.  doi:10.1088/1674-1056/25/7/077403.

Copy to clipboard


                    Cui, Shan, He, Lan -Po, Hong, Xiao -Chen, Zhu, Xiang -De, Petrovic, Cedomir, & Li, Shi -Yan. Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex.  United States.  https://doi.org/10.1088/1674-1056/25/7/077403

Copy to clipboard


                    Cui, Shan, He, Lan -Po, Hong, Xiao -Chen, Zhu, Xiang -De, Petrovic, Cedomir, and Li, Shi -Yan. Thu .  
"Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex".  United States.  https://doi.org/10.1088/1674-1056/25/7/077403.  https://www.osti.gov/servlets/purl/1345739.

Copy to clipboard


                    
@article{osti_1345739,

  title        = {Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex},

  author       = {Cui, Shan and He, Lan -Po and Hong, Xiao -Chen and Zhu, Xiang -De and Petrovic, Cedomir and Li, Shi -Yan},

  abstractNote = {It was found that selenium doping can suppress the charge-density-wave (CDW) order and induce bulk superconductivity in ZrTe3. The observed superconducting dome suggests the existence of a CDW quantum critical point (QCP) in ZrTe3–x Sex near x ≈ 0.04. To elucidate the superconducting state near the CDW QCP, we measure the thermal conductivity of two ZrTe3–x Sex single crystals (x = 0.044 and 0.051) down to 80 mK. For both samples, the residual linear term κ0/T at zero field is negligible, which is a clear evidence for nodeless superconducting gap. Furthermore, the field dependence of κ0/T manifests a multigap behavior. Lastly, these results demonstrate multiple nodeless superconducting gaps in ZrTe3–x Sex, which indicates conventional superconductivity despite of the existence of a CDW QCP.},

  doi          = {10.1088/1674-1056/25/7/077403},

  journal      = {Chinese Physics. B},

  number       = 7,

  volume       = 25,

  place        = {United States},

  year         = {Thu Jun 09 00:00:00 EDT 2016},

  month        = {Thu Jun 09 00:00:00 EDT 2016}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1088/1674-1056/25/7/077403

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 5 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Superconductivity and charge density wave in ZrTe_3–xSe_x

Journal Article Zhu, Xiangde ; Ning, Wei ; Li, Lijun ; ... - Scientific Reports

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 T_c(x) in ZrTe_3–xSe_x (0 ≤ x ≤ 0.1) increases up to 4 K plateau for 0.04 ≤ x ≤ 0.07. Further increase in Se content results inmore »« less
Cited by 38
https://doi.org/10.1038/srep26974

Full Text Available
Impact of the charge density wave state in the electrodynamic response of ${ZrTe}_{3 - x} {Se}_{x}$ : Optical evidence for a pseudogap phase

Journal Article Chinotti, M. ; Ethiraj, J. ; Mirri, C. ; ... - Physical Review B

The emergence of superconductivity upon progressively suppressing the long-range, charge-density-wave (CDW) order characterizes the phase diagram of several materials of interest in the on-going solid-state physics research. Se-doped ZrTe₃ compounds provide the most recent, suitable arena in order to investigate the interplay of otherwise competing orders in layeredlike two-dimensional systems. We present an optical study of the CDW state in ZrTe_3-xSe_x at selected Se dopings, based on the measurement of the reflectivity from the far-infrared up to the ultraviolet, as a function of temperature. We particularly focus our attention to the redistribution of the spectral weight, which images the impactmore »« less
Cited by 4
https://doi.org/10.1103/PhysRevB.97.045117

Full Text Available
Nodeless multiband superconductivity in stoichiometric single-crystalline ${CaKFe}_{4} {As}_{4}$

Journal Article Cho, Kyuil ; Fente, A. ; Teknowijoyo, S. ; ... - Physical Review B

Measurements of the London penetration depth Δλ(T) and tunneling conductance in single crystals of the recently discovered stoichiometric iron-based superconductor CaKFe₄As₄ (CaK1144) show nodeless, two-effective-gap superconductivity with a larger gap of about 6–10 meV and a smaller gap of about 1–4 meV. Having a critical temperature T_c,onset ≈ 35.8 K, this material behaves similar to slightly overdoped (Ba_1–xK_x)Fe₂As₂ (e.g., x = 0.54,T_c ≈ 34 K), a known multigap s_± superconductor. Here, we conclude that the superconducting behavior of stoichiometric CaK1144 demonstrates that two-gap s± superconductivity is an essential property of high-temperature superconductivity in iron-based superconductors, independent of the degree ofmore » substitutional disorder.« less
Cited by 48
https://doi.org/10.1103/PhysRevB.95.100502

Full Text Available
Local corrugation and persistent charge density wave in $ZrTe_{3}$ with Ni intercalation

Journal Article Ganose, Alex M. ; Gannon, Liam ; Fabrizi, Federica ; ... - Physical Review B

Here, the mechanism of emergent bulk superconductivity in transition-metal intercalated ZrTe₃ is investigated by studying the effect of Ni doping on the band structure and charge density wave (CDW). The study reports theoretical and experimental results in the range of Ni_0.01ZrTe₃ to Ni_0.05ZrTe₃. In the highest doped samples, bulk superconductivity with T_c < T_CDW is observed, with a reduced T_CDW compared with pure ZrTe₃. Relativistic ab initio calculations reveal that Ni incorporation occurs preferentially through intercalation in the van der Waals gap. Analysis of the structural and electronic effects of intercalation indicate buckling of the Te sheets adjacent to themore »« less
Cited by 15
https://doi.org/10.1103/PhysRevB.97.155103

Full Text Available
Resonant Bonding, Multiband Thermoelectric Transport, and Native Defects in n-Type BaBiTe_3–xSe_x (x = 0, 0.05, and 0.1)

Journal Article Maier, S. ; Ohno, S. ; Yu, G. ; ... - Chemistry of Materials

The unique crystal structure of BaBiTe₃ containing Te···Te resonant bonds and its narrow band gap motivated the systematic study of the thermoelectric transport properties of BaBiTe_3-xSe_x (x = 0, 0.05, and 0.1) presented here. This study gives insight in the chemical bonding and thermoelectric transport properties of BaBiTe₃. The study shows that the presence of Te···Te resonant bonds in BaBiTe₃ is best described as a linear combination of interdigitating (Te^1-)₂ side groups and infinite Te_n chains. Rietveld X-ray structure refinements and extrinsic defect calculations reveal that the substitution of Te by Se occurs preferentially on the Te₄ and Te₅ sites,more »« less
Cited by 12
https://doi.org/10.1021/acs.chemmater.7b04123

Full Text Available

Similar Records

Title: Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe3–xSex

Abstract

Citation Formats

Title: Multiband nodeless superconductivity near the charge-density-wave quantum critical point in ZrTe_3–xSe_x