Structural effects of hydrostatic pressure in Sr[sub 1[minus][ital x]][ital M][sub [ital x]]CuO[sub 2] ([ital M]=La,Ca) and Sr[sub 4]Cu[sub 6]O[sub 10]

Journal Article · Mon Oct 31 23:00:00 EST 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.50.12752· OSTI ID:6955472

Shaked, H; Shimakawa, Y; Hunter, B A; Radaelli, P G; Dabrowski, B; Hitterman, R L; Jorgensen, J D ^[1]; Han, P D; Payne, D A ^[2]; Kikkawa, S; Er, G; Kanamaru, F ^[3]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Materials Science and Engineering Department, University of Illinois, Urbana, Illinois 61801 (United States)
3. The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567 (Japan)

Pressure effects on the tetragonal infinite-layer structure were studied in superconducting Sr[sub 0.9]La[sub 0.1]CuO[sub 2] (electron-doped) and Sr[sub 0.7]Ca[sub 0.3]CuO[sub 2] (hole-doped) samples, and in an insulating nonsuperconducting Sr[sub 0.14]Ca[sub 0.86]CuO[sub 2] sample, using time-of-flight neutron powder diffraction. Neutron-diffraction measurements, with the sample at room temperature, were performed at several hydrostatic pressures up to [approx]0.6 GPa on each of the three samples, using a helium-gas pressure cell. The measured compressibilities, which are similar for the three samples, show a large anisotropy, and are in a good agreement with first-principles calculations performed for undoped Sr[sub 0.7]Ca[sub 0.3]CuO[sub 2]. Atomic size effects of the [ital A] atom in [ital A]CuO[sub 2] on the crystal lattice are discussed and are compared with the pressure effects. A relation is found between the in-plane compressibilities among [ital n]-layer ([ital n]=1,2,3 . . .,[infinity]) structures of high-[ital T][sub [ital c]] superconductors.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6955472
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:17; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
AMBIENT TEMPERATURE
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COMPRESSIBILITY
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIELECTRIC MATERIALS
DIFFRACTION
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MATERIALS
MECHANICAL PROPERTIES
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TIME-OF-FLIGHT METHOD
TRANSITION ELEMENT COMPOUNDS
VERY HIGH PRESSURE