Equipment of the Core Shared Research Facility “SQUID-Magnetometer MPMS-XL5” (by Quantum Design, USA).

The instrument is designed for measuring magnetic properties (magnetization and magnetic susceptibility) of samples with very small magnetic moments, including weakly magnetic materials or samples containing only a small amount of magnetic substance.

The system enables measurements of the magnetic moment for virtually all types of materials, including single crystals, polycrystalline samples, thin films, powders, and others.

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Provider:
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Main Technical Specifications of the MPMS-XL5 SQUID Magnetometer:

  • Magnetic moment measurement range: ±5 EMU
  • Differential sensitivity: ≤ 10⁻⁸ EMU for measurements in magnetic fields up to 0.25 Tesla, and ≤ 2×10⁻⁷ EMU in fields up to 5 Tesla
  • Magnetic field range: ±5 Tesla
  • Magnetic field homogeneity: 0.01% over a region larger than 4 cm (±2 cm from the center)
  • Magnetic field setting accuracy: 10⁻⁴ Tesla for measurements up to 5 Tesla, and 10⁻⁵ Tesla for measurements up to 0.5 Tesla
  • Residual magnetic field: less than 5×10⁻⁴ Tesla
  • Operating temperature range: 1.9 to 400 K
  • Temperature stability at the sample region: ±0.5%
  • Temperature calibration accuracy at the sample region: ±0.5%
  • Temperature stability: ±0.005 K (1.9–4.2 K)
  • Temperature sweep rate: from 0.001 to 10 K/min
  • Maximum sample dimensions: length ≤ 5 mm, transverse size ≤ 5 mm

The instrument is additionally equipped with facilities for magnetic anisotropy studies, including an automated sample rotation system in both horizontal and vertical planes, as well as equipment for magneto-optical investigations.

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