Advantages of λ measurement in flat geometry high-Tc cuprates by an open-flat coil magnetometer demonstrating its wide possibilities for detection

S. Gevorgyan, T. Kiss, A. Movsisyan, H. Shirinyan, T. Ohyama, M. Takeo, T. Matsushita, K. Funaki

研究成果: ジャーナルへの寄稿Conference article

2 引用 (Scopus)


We developed an open-flat coil (OFC) preparation technology allowing creation of circular shape flat coils with high Q-factors. It enabled improving of an OFC magnetometer resolution up to Δλ to approximately 0.5 angstrom (Δλ/λ to approximately 3×10-7) at λ measurements in thin HTS at 30 MHz. This permitted to reach the sensitivity approximately 2×10-12 W/cm2 at detection of 0.63 μm laser radiation, which is better than the possibilities of the similar `screening' type detector based however, on square shape flat coils. Besides, the resolution approximately 30 nA/cm2 was registered at detection of the currents passing through the HTS thin films. We used this technique also to study the fine peculiarities of the vortex motion in high-Tc cuprates.

ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
出版物ステータス出版済み - 4 7 2000
イベント8th International Workshop on Low Temperature Detectors (LTD-8) - Dalfsen, Neth
継続期間: 8 15 19998 20 1999


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation