Magnetostriction of HTSC single crystals

Conference · Fri Apr 01 04:00:00 EST 1994 · Journal of Superconductivity; (United States)

OSTI ID:6655176

Hirota, N; Ikuta, H; Heill, L K; Yasunaka, T; Kishio, K; Kitazawa, K ^[1]

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1. Univ. of Tokyo (Japan)

We have measured the sample length change of HTSC single crystals in the superconducting state in a magnetic field. The magnetic field was applied parallel to the crystalline c-axis direction and was swept at a constant rate of 10 mT/s up to 6 T. The sample length change was measured along the ab-plane direction, i.e., perpendicular to the field. We have found for the Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8] single crystals that the relative sample length change ([Delta]L/L) is extraordinarily large for a superconductor, on the order of 10[sup [minus]4]. For the case of (La[sub 1[minus]x]Sr[sub x])[sub 2]CuO[sub 4], the amount of magnetostriction was not as large as for the Bi system, but the magnetostriction curves had many similarities. For both compounds, a relaxation phenomenon was observed when the field sweep was suspended at a certain field value. These observations are discussed in relation to flux line pinning. 4 refs., 2 figs.

• OSTI ID: 6655176
• Report Number(s): CONF-930710--
• Conference Information: Journal Name: Journal of Superconductivity; (United States) Journal Volume: 7:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTALS
CUPRATES
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC FLUX
MAGNETIC PROPERTIES
MAGNETOSTRICTION
MATHEMATICAL MODELS
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RELAXATION
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS