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MPMS, PPMS

JCNS-2 is equipped with powerful state-of the-art instruments to characterize samples with respect to the following physical properties as a function of both magnetic field and temperature:

  • Magnetization
  • AC susceptibility
  • Torque magnetometry
  • Heat capacity
  • Thermal transport properties
  • Electrical transport properties
  • Hall effect
  • Seebeck coefficient

MPMS-XL SQUID Magnetometer from Quantum Design allows to measure the magnetization (or more precisely the magnetic moment) and the AC susceptibility at various applied magnetic fields between -7 and +7 T and temperatures between 1.9 and 400 K. Scans can be programmed as a function of field, temperature or time as automated sequences, e.g. hysteresis loops, ZFC/FC temperature measurements, magnetization relaxation curves, etc. The sensitivity is 10-8 emu. E.g. cobalt ultrathin films with a nominal thickness of 0.5 nm are routinely measurable. The samples should have a size not exceeding roughly 7mm x 7mm x 7mm and can be bulk crystals, thin films, nanoparticles, etc.

MPMS-XL SQUID MagnetometerMPMS-XL SQUID Magnetometer from Quantum Design
Copyright: Forschungszentrum Jülich

Location: Geb. Nr. 4.6, Room No.: A 66, Ph: 4006

PPMS system from Quantum Design widens the possible methods to measurements of the heat capacity, thermal transport properties, electrical transport properties or the Seebeck coefficient in applied magnetic fields between -9 and 9 T and temperatures between 1.9 and 400 K. Furthermore, the magnetization and AC susceptibility can also be measured using the PPMS system although with a slightly lower sensitivity of ~10-6 emu compared to the MPMS system. In addition, the PPMS can also be used as a torque magnetometer, which provides information about magnetic anisotropies.

PPMS systemPPMS system from Quantum Design
Copyright: Forschungszentrum Jülich

Location: Geb. Nr. 4.8, Room No.: N 317, Ph: 2314

The PPMS DynaCool uses a single two-stage Pulse Tube cooler to cool both the superconducting magnet and the temperature control system, providing a low vibration environment for sample measurements and is a truly cryogen-free package. It offers continuous low-temperature control and precise field and temperature sweep modes. 


PPMS DynaCool has the same functionality as the PPMS methods to measure the heat capacity, thermal transport properties, electrical transport properties or the Seebeck coefficient in applied magnetic fields between -9 and 9 T and temperatures between 1.9 and 400 K. Furthermore, the magnetization and AC susceptibility can also be measured.

The DynaCool is capable of measuring a variety of physical properties:

  1. DC Resistivity Option for the measurement of electrical resistance
  2. Electrical Transport Option (ETO) for the measurement of AC electrical resistance and the Hall effect and the I-V curves.
  3. Thermal Transport Option (TTO) for the measurement of thermal conductance and the Seebeck effect
  4. Heat Capacity Option (HC) for heat capacity measurements
  5. VSM Option for magnetic measurements down to 10-6 emu
  6. VSM Oven for high-temperature magnetic measurements at up to 1000 K
  7. AC Susceptibilty (ACMS II):  Drive Parameters Amplitude: 0.05 to 15 Oe Frequency Range: 10 Hz to 10 kHz 

PPMS DynaCoolPPMS DynaCool at JCNS 2.
Copyright: Forschungszentrum Jülich

Location: Geb. Nr. 4.8, Room No.: N 024A, Ph: 4259

Contact: 


Oleg Petracic 
Phone: +49 2461 61-4036 
email: o.petracic@fz-juelich.de

ORCID
Researchgate

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Contact: 

Shibabrata Nandi
Phone:   +49 2461 61-4762 
email: s.nandi@fz-juelich.de

ORCID
Researchgate
Google Scholar

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