Display options
Cite
Abdel-Hafiez M, Zhao XM, Kordyuk AA, et al. Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals. Sci Rep. 2016;6:31824doi: 10.1038/srep31824.
Abdel-Hafiez, M., Zhao, X. M., Kordyuk, A. A., Fang, Y. W., Pan, B., He, Z., Duan, C. G., Zhao, J., & Chen, X. J. (2016). Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals. Scientific reports, 631824. https://doi.org/10.1038/srep31824
Abdel-Hafiez, M, et al. "Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals." Scientific reports vol. 6 (2016): 31824. doi: https://doi.org/10.1038/srep31824
Abdel-Hafiez M, Zhao XM, Kordyuk AA, Fang YW, Pan B, He Z, Duan CG, Zhao J, Chen XJ. Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals. Sci Rep. 2016 Aug 18;6:31824. doi: 10.1038/srep31824. PMID: 27534898; PMCID: PMC4989151.
Copy Download .nbib Format: NLM
Share it on

Sci Rep. 2016 Aug 18;6:31824. doi: 10.1038/srep31824.

Enhancement of superconductivity under pressure and the magnetic phase diagram of tantalum disulfide single crystals.

Scientific reports

M Abdel-Hafiez, X-M Zhao, A A Kordyuk, Y-W Fang, B Pan, Z He, C-G Duan, J Zhao, X-J Chen

Affiliations

  1. Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China.
  2. Faculty of science, Physics department, Fayoum University, 63514-Fayoum- Egypt.
  3. Department of Physics, South China University of Technology, Guangzhou 510640, China.
  4. Institute of Metal Physics, National Academy of Sciences of Ukraine, 03142 Kyiv, Ukraine.
  5. Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, China.
  6. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  7. Collaborative Innovation Center of Advanced Microstructures, Fudan University, Shanghai 200433, China.

PMID: 27534898 PMCID: PMC4989151 DOI: 10.1038/srep31824

Abstract

In low-dimensional electron systems, charge density waves (CDW) and superconductivity are two of the most fundamental collective quantum phenomena. For all known quasi-two-dimensional superconductors, the origin and exact boundary of the electronic orderings and superconductivity are still attractive problems. Through transport and thermodynamic measurements, we report on the field-temperature phase diagram in 2H-TaS2 single crystals. We show that the superconducting transition temperature (Tc) increases by one order of magnitude from temperatures at 0.98 K up to 9.15 K at 8.7 GPa when the Tc becomes very sharp. Additionally, the effects of 8.7 GPa illustrate a suppression of the CDW ground state, with critically small Fermi surfaces. Below the Tc the lattice of magnetic flux lines melts from a solid-like state to a broad vortex liquid phase region. Our measurements indicate an unconventional s-wave-like picture with two energy gaps evidencing its multi-band nature.

References

  1. Nat Mater. 2008 Dec;7(12):960-5 - PubMed
  2. Phys Rev Lett. 2007 Apr 20;98(16):167201 - PubMed
  3. Phys Rev Lett. 2008 May 16;100(19):196402 - PubMed
  4. Nat Chem. 2010 Dec;2(12):1031-6 - PubMed
  5. Phys Rev Lett. 2005 Sep 9;95(11):117006 - PubMed
  6. Phys Rev Lett. 2003 May 2;90(17):177002 - PubMed
  7. Nat Nanotechnol. 2015 Mar;10(3):270-6 - PubMed
  8. Phys Rev Lett. 2001 Jul 23;87(4):047001 - PubMed
  9. Nature. 2008 Jun 12;453(7197):903-5 - PubMed
  10. Phys Rev Lett. 1988 Oct 3;61(14):1658-1661 - PubMed
  11. Phys Rev Lett. 2004 Mar 12;92(10):107008 - PubMed
  12. Proc Natl Acad Sci U S A. 2012 May 8;109(19):7224-9 - PubMed
  13. Phys Rev Lett. 2014 Jul 18;113(3):036802 - PubMed
  14. Phys Rev Lett. 1992 Jul 20;69(3):522-525 - PubMed

Publication Types