Ppms

Physical Properties Measuring System (PPMS)

The Quantum Design Physical Properties Measuring System (PPMS) is an open architecture research equipment, working at variable temperature and magnetic field environments. Designed to perform a variety of automated measurements.  In our instrument we can change the magnetic fields up to ±9 T and to collect magnetic, resistivity and heat capacity data, in the temperature range of 1.9 - 400 K.

Quantum Design PPMS ACMS II Coil Set

Our instrument include the  following measurement Options:

  • AC Susceptibility (ACMS II)

The AC Measurement System utilizes a mutual induction-based technique to determine a sample's dynamic (AC) susceptibility. The system also enables the user to perform DC magnetization measurements.   AC moment sensitivity of 10-8 emu, AC excitation fields of 0.05 – 15 Oe are available at frequencies from 10 Hz – 10 kHz

  • Horizontal Rotator

The Horizontal Rotator enables a transport sample to be rotated over a full 360° in the presence of an applied magnetic field. An automated indexing procedure and encoder ensures accurate angular positions and the on-board thermometer monitors the temperature in close proximity to the sample. Rotate a sample between -10° – 370° to change the orientation of the applied magnetic field relative to the installed sample    Motor available in Standard Resolution (0.0133°/step) and High Resolution (0.0011°/step) versions

Quantum Design PPMS Horizontal Rotator with Sample Boards

  • DC Resistance

Quantum Design PPMS Resistivity Electrical Transport Option Puck DC resistance on up to three channels using a standard puck can be measured using the DC Resistivity Option.   Measure resistances of 10 μΩ – 5 MΩ in a standard 4-probe configuration   Source currents between 2 nA – 8 mA     Configurable bridge parameters to limit the voltage, current, or power at the sample for protecting sensitive devices, films, etc.

Quantum Design PPMS Resistivity Electrical Transport Option Puck

  • Heat capacity

High-precision microcalorimetry experiments can be performed using the Heat Capacity option to measure a sample's heat capacity as a function of temperature. Measurements in a static applied magnetic field are also possible using the automated field calibration function of the software.     Typical addenda signal of 0.2 μJ/K at 2 K, where signal resolution is 2 nJ/K     Software automates the collection of addenda (background) signal and performs the necessary subtraction for determining the sample's heat capacity    

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