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Titolo:
CONTINUOUSLY ROTATABLE HIGH-FIELD CAPACITANCE TORQUE MAGNETOMETER
Autore:
SCHNACK HG; GRIESSEN R; NOORDELOOS P; HEECK K;
Indirizzi:
FREE UNIV AMSTERDAM,DEPT PHYS & ASTRON,DE BOELELAAN 1081 NL-1081 HV AMSTERDAM NETHERLANDS
Titolo Testata:
Physica. C, Superconductivity
fascicolo: 3-4, volume: 266, anno: 1996,
pagine: 285 - 295
SICI:
0921-4534(1996)266:3-4<285:CRHCTM>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
HIGH-TC SUPERCONDUCTORS; HIGH-TEMPERATURE SUPERCONDUCTORS; SINGLE-CRYSTALS; FLUX-CREEP; MAGNETIZATION; RELAXATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
H.G. Schnack et al., "CONTINUOUSLY ROTATABLE HIGH-FIELD CAPACITANCE TORQUE MAGNETOMETER", Physica. C, Superconductivity, 266(3-4), 1996, pp. 285-295

Abstract

A capacitance torque magnetometer with low noise level and backgroundwas developed for measurements of magnetic moments of high-T-c superconductors, while continuously rotating over 180 degrees about a horizontal axis in a constant magnetic field up to 7 T, provided by a superconducting solenoid mounted vertically in a cryostat. The angular velocity can be smoothly varied between similar to 0.025 degrees s(-1) and similar to 1.5 degrees s(-1). This type of torque meter can be used inany high field solenoid to investigate (i) the anisotropy of reversible and irreversible properties of magnetic and superconducting materials, (ii) the low field magnetization of geometrically or intrinsicallyanisotropic superconducting samples, and (iii) relaxation effects after a relatively fast rotation of a superconducting sample. At a high rotation speed (e.g. 1.5 degrees s(-1)) the effective sweep rate of thefield component perpendicular to a film can be as high as 0.2 T s(-1). Examples of experiments are given for a YBa2Cu3O7 film and a Bi2Sr2CaCu2O8 single crystal.

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Documento generato il 27/01/20 alle ore 17:25:17