The measurement (tan δ) is performed using capacitance bridges, which automatically or manually balances the capacitance and dissipation of the sample with known standards. When a sample is prepared to a parallel capacitor geometry, the capacitance and the dissipation can be converted to real and imaginary part of dielectric constant (ε′ and ε″ respectively) using relations of C=ε0 ε′ Area ⁄ (thickness) and tan δ= ε″ ⁄ ε′ , where ε0 is permittivity of air.
Images & Sample Data
Click on images to view a larger version, to download or to view more details.
-
A typical sample configuration for the capacitance measurement. A typical sample configuration for the capacitance measurement.
-
Dielectric constant of SmMnO3 single crystal as a function of temperature. Dielectric constant of SmMnO3 single crystal as a function of temperature.
-
Magnetic field dependence of dielectric constant of SrNdFeO4 single crystal. Magnetic field dependence of dielectric constant of SrNdFeO4 single crystal.
https://nationalmaglab.org/user-facilities/dc-field/dcfield-techniques/dielectric-capacitance-dc#sigProIdffef755c63
Instrumentation
Resistive Magnets
Superconducting Magnets
- Andeen-Hagerling Model 2700A capacitance bridge (50 – 20 kHz)
- General Radio 1615A capacitance bridge (50 – 10 kHz)
Related Publications
Silverstein, et al, Incommensurate crystal supercell and polarization flop observed in the magnetoelectric ilmenite MnTiO3, Phys. Rev. B, 93 (2016) Read online
Zhao, et al, Spin-orbital liquid and quantum critical point in Y1−xLaxTiO3, Phys. Rev. B, 161106(R) (2015) Read online
Cao, et al, High pressure floating zone growth and structural properties of ferrimagnetic quantum paraelectric BaFe12O19, Applied Physics Letters Materials, 3 (2015) Read online
Lee, et al, Series of phase transitions and multiferroicity in the quasi-two-dimensional spin-1/2 triangular lattice antiferromagnet Ba3CoNb2O9, Physical Review B, 89 (2014) Read online
Lee, et al, Magnetic phase diagram and multiferroicity of Ba3MnNb2O9: A spin-(5/2) triangular lattice antiferromagnet with weak easy-axis anisotropy, Phys. Rev. B, 90 (2014) Read online
Besara, et al, Spin dynamics and magnetoelectric properties of the coupled-spin tetrahedral compound Cu2Te2O5Cl2, Phys. Rev. B, 90 (2014) Read online
Chi, et al, Magnetoelectric coupling tuned by competing anisotropies in Mn1-xNixTiO3, Phys. Rev. B, 90 (2014) Read online
Wang, Z., et al, Dimethylammonium copper formate [(CH3)2NH2]Cu(HCOO)3: A metal-organic framework with quasi-one-dimensional antiferromagnetism and magnetostriction, Physical Review B, 87 (2013) Read online
Kismarahardja, A., et al, Dielectric properties of single crystal spinels in the series FeV2O4, MnV2O4, and CoV2O4 in high magnetic fields, Physical Review B (2013) Read online
Silverstein, H. J., et al, Pb3TeCo3V2O14: A Potential Multiferroic Co Bearing Member of the Dugganite Series, Chem. Mater., 24 (2012) Read online
Samantaray, R., et al, Elucidating the Mechanism of Multiferroicity in (NH4)3Cr (O2)4 and its Tailoring by Alkali Metal Substitution, J. Am. Chem. Soc., (2012) Read online
Iyama, A., et al, High-magnetic field effect on interplay between Sm 4f and Mn 3d moments in SmMnO3, Journal of the Physical Society of Japan, 81 (2012) Read online
Hwang, J., et al, Magnetic transitions and magnetodielectric effect in antiferromagnet SrNdFeO4, Physical Review B, 85 (2012) Read online
Hwang, J., et al, Magnetoelectric effect in NdCrTiO5, Phys. Rev. B, 85 (2012) Read online
Hwang, J., et al, Successive Magnetic Phase Transitions and Multiferroicity in the Spin-One Triangular-Lattice Antiferromagnet Ba3NiNb2O9, Physical Review Letters, 109 (2012) Read online
Samantaray, R., et al, M3-x(NH4)xCrO8 (M = Na, K, Rb, Cs): A New Family of Cr5+-Based Magnetic Ferroelectrics, J. Am. Chem. Soc. (Comm.) 133 (2011) Read online
Park, J., et al, Magnetoelectric Feedback among Magnetic Order, Polarization, and Lattice in Multiferroic BiFeO3, Journal of the Physical Society of Japan, 80 (2011) Read online
Staff Contact
For more information, please contact: