Ion channeling in (Bi sub 1. 7 Pb sub 0. 3 )Sr sub 2 CaCu sub 2 O sub x single crystals

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.4175· OSTI ID:6360670

Rehn, L E; Sharma, R P; Baldo, P M; Chang, Y C; Jiang, P Z ^[1]

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1. Materials Science Division, Argonne National Laboratory, Argonne, IL (USA)

Ion channeling, in combination with Rutherford backscattering spectrometry and measurements of characteristic x-ray production, was performed on single crystals of (Bi{sub 1.7}Pb{sub 0.3})Sr{sub 2}Ca{sub 1}Cu{sub 2}O{sub {ital x}} at temperatures between 35 and 295 K. Substantial effects of the incommensurate lattice modulation on the channeling behavior were observed. In particular, the relatively large ({approx lt}0.03 nm) static atomic displacements from this modulation narrowed the critical angle for channeling by more than 50%, sharply reduced its expected temperature dependence, and increased the minimum yield by more than a factor of 3. Measurements of the critical angle as a function of temperature revealed an anomaly at {Tc} (=90 K) in Cu-atom displacements perpendicular to the (001) axis. This anomaly appears to be identical to the one found previously in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6360670
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 42:7; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHANNELING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELASTIC SCATTERING
ELECTROMAGNETIC RADIATION
ION CHANNELING
IONIZING RADIATIONS
LATTICE PARAMETERS
LEAD COMPOUNDS
LEAD OXIDES
LOW TEMPERATURE
MEDIUM TEMPERATURE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
RUTHERFORD SCATTERING
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
X RADIATION