For most magnetic users, the comprehensive physical measurement system PPMS should be no stranger. The design concept is to integrate fully automatic magnetic, electrical, thermal and topography, even iron, on a perfect low temperature and strong magnetic field platform. Various physical measurement methods such as electricity and dielectric. This design makes the whole system's low temperature and strong magnetic field environment fully utilized, greatly reducing the cost of the customer to purchase the instrument, avoiding the cumbersome and error of building the experiment, and quickly realize the research ideas of the researchers.
A PPMS system consists of a basic system and various measurement and expansion function options: the basic system provides a low temperature and strong magnetic field environment, and the hardware and software control center of the entire system; the user selects each of their own interests based on the basic system platform. Measurement options and expansion options. So, in which research directions can so many functional options work?
1. Magnetic field modulated PE measurement
Figure 1 Magnetic Biasing of a Ferroelectric Hysteresis Loop in a Multiferroic Orthoferrite
PRL112,037203(2014) (PPMS+Radiant Ferroelectric Tester)
2. Pyroelectric measurement under different magnetic fields
Figure 2 Multiferroic properties of CaMn7O12 PRB 84,174413 (2011) (PPMS+Keithly6514A electrometer)
3. Dielectric and ferroelectric measurements
Figure 3 Using a Hioki-3532-50 LCR meter, a self-made sample rod was measured on a PPMS using a parallel plate capacitance method.
4, magnetostrictive measurement
Figure 4 Strain measurement results of Dy1-xHoxMnO3 (0 ≤ x ≤ 1). All the obtained strains are referred to the value of 20K, respectively. (a) Under zero magnetic field. (b) Under applied magnetic field of 7T.
5, magnetoelectric coupling measurement
Figure 5 uses the Keithley 6221 to generate an AC field on a custom coil, the Standford lock-in amplifier SR830 detects the ME voltage, and the self-made shield shields the background voltage noise. Appl. Phys. Lett. 97, 092501 2010
6, magnetoresistance measurement under high pressure
Figure 6 "Pressure-Induced Transition in Magnetoresistance of Single-Walled Carbon Nanotubes". L. Lu, etc. Institute of Physics. CAS PRL 97, 026402 (2006)
7. Electrically induced magnetic measurement using the VSM OVEN option
After reading the above introduction, do you think that the PPMS option is very powerful! We have only listed some of the main options. In the next push, we will present PPMS for use with other devices. What kind of sparks will be developed by PPMS, atomic force microscope, confocal microscope, etc? Stay tuned!
If you are interested in the above options, or would like to know the features of some options, you are welcome to call or go to the official website of Quantum Design China, we will give you a satisfactory answer as soon as possible!
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