Skip to main content
Journal cover image

Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors

Publication ,  Journal Article
Hammarstrom, HM; Bischoff, JE; Cocks, FH
Published in: Materials Chemistry & Physics
January 1, 1995

Chemical pressure analysis (CPA) is used to determine the anisotropic dependence of the critical temperature on the lattice parameters of Bi2Sr2CaCu2O8 + x. CPA yields a quantitative expression relating Tc and lattice parameter values and offers a phenomenological approach to studying the effect of structure on superconductivity. Similar to previously reported results for YBa2Cu3O7 - x and YBa2(Cu1 - xFex)3O7 - y, CPA for Bi2Sr2CaCu2O8 + x reveals that the dependence of the critical temperature is strongly anisotropic and is influenced much more by chemical pressure than by physical (mechanical) pressure, per unit change in lattice parameter. A positive correlation is found between unit cell volume and Tc for Bi2Sr2CaCu2O8 + x, but these parameters are negatively correlated for YBa2Cu3O7 - x and YBa2(Cu1 - xFex)3O7 - y. Physical pressure results for both Tl2Ba2CaCu2Ox and HgBa2Cam - 1CumO2m + 2 + δ indicate that increases of up to 28 K (10 GPa) and 30 K (45 GPa), respectively, can be obtained from these compounds, but sufficient lattice constant and elastic constant data for CPA are not yet available. © 1995.

Duke Scholars

Published In

Materials Chemistry & Physics

DOI

ISSN

0254-0584

Publication Date

January 1, 1995

Volume

40

Issue

1

Start / End Page

37 / 43

Related Subject Headings

  • Materials
  • 4016 Materials engineering
  • 1007 Nanotechnology
  • 0912 Materials Engineering
  • 0303 Macromolecular and Materials Chemistry
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hammarstrom, H. M., Bischoff, J. E., & Cocks, F. H. (1995). Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors. Materials Chemistry & Physics, 40(1), 37–43. https://doi.org/10.1016/0254-0584(94)01456-Q
Hammarstrom, H. M., J. E. Bischoff, and F. H. Cocks. “Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors.” Materials Chemistry & Physics 40, no. 1 (January 1, 1995): 37–43. https://doi.org/10.1016/0254-0584(94)01456-Q.
Hammarstrom HM, Bischoff JE, Cocks FH. Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors. Materials Chemistry & Physics. 1995 Jan 1;40(1):37–43.
Hammarstrom, H. M., et al. “Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors.” Materials Chemistry & Physics, vol. 40, no. 1, Jan. 1995, pp. 37–43. Scopus, doi:10.1016/0254-0584(94)01456-Q.
Hammarstrom HM, Bischoff JE, Cocks FH. Chemical pressure analysis (CPA): yttrium, bismuth, thallium, and mercury based high-temperature superconductors. Materials Chemistry & Physics. 1995 Jan 1;40(1):37–43.
Journal cover image

Published In

Materials Chemistry & Physics

DOI

ISSN

0254-0584

Publication Date

January 1, 1995

Volume

40

Issue

1

Start / End Page

37 / 43

Related Subject Headings

  • Materials
  • 4016 Materials engineering
  • 1007 Nanotechnology
  • 0912 Materials Engineering
  • 0303 Macromolecular and Materials Chemistry