Characterizing Ferroelectric and Magnetodielectric Properties

Ferroelectric hysteresis loops and switching current were collected from the current density–voltage (J–V) curves via the double-wave method in a physical properties measurement system (PPMS-9, Quantum Design)^{39 (link),40 (link)}. Dielectric measurements were carried out using an Impedance analyzer (E4990A). The temperature was controlled by a Linkam Scientific Instruments HFS600E-PB4 system. The magnetodielectric effects were measured using an Agilent 4980 A LCR meter in a cryogen-free superconducting magnet system (Oxford Instruments, TeslatronPT). For the ferroelectric, dielectric, and magnetodielectric measurements, Pt top electrodes with an area of 8 × 10⁻⁴ cm² and the VAN films grown on Nb-STO substrates were used. The magnetic measurements were carried out using a PPMS-9 and a superconducting quantum interface device magnetometer (SQUID, Quantum Design).

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Zhao R., Yang C., Wang H., Jiang K., Wu H., Shen S., Wang L., Sun Y., Jin K., Gao J., Chen L., Wang H., MacManus-Driscoll J.L., van Aken P.A., Hong J., Li W, & Yang H. (2022). Emergent multiferroism with magnetodielectric coupling in EuTiO3 created by a negative pressure control of strong spin-phonon coupling. Nature Communications, 13, 2364.

Publication 2022

PPMS-9 HFS600E-PB4 system TeslatronPT

Device Physical properties Squid

Corresponding Organization : East China Normal University

Other organizations : Nanjing University of Aeronautics and Astronautics, Beijing Institute of Technology, Max Planck Institute for Solid State Research, Donghua University, National Laboratory for Superconductivity, Chongqing University, Suzhou University of Science and Technology, Purdue University West Lafayette, University of Cambridge, Jishou University

Top 5 similar protocols

Variable analysis

independent variables

Voltage applied to the samples

dependent variables

Ferroelectric hysteresis loops
Switching current
Dielectric measurements
Magnetodielectric effects
Magnetic measurements

control variables

Temperature controlled by a Linkam Scientific Instruments HFS600E-PB4 system
Pt top electrodes with an area of 8 × 10^-4 cm^2
VAN films grown on Nb-STO substrates

controls

Positive control: Not explicitly mentioned
Negative control: Not explicitly mentioned

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