Magnetoelectric effect in antiferromagnetic crystals

Bonfim, O. F. de Alcantara; Gehring, G A

doi:10.1080/00018738000101436

Cited by 54 publications

(32 citation statements)

References 16 publications

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“…In the old literature, we can count about four different mechanisms which may participate in the magnetoelectric effect [25]. We can consider the molecular field theory expression of a magnetic field for the magnetoelectric susceptibility.…”

Section: Discussionmentioning

confidence: 99%

Prediction for new magnetoelectric fluorides

Nénert¹,

Palstra²

2007

J. Phys.: Condens. Matter

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Abstract.We use symmetry considerations in order to predict new magnetoelectric fluorides. In addition to these magnetoelectric properties, we discuss among these fluorides the ones susceptible to present multiferroic properties. We emphasize that several materials present ferromagnetic properties. This ferromagnetism should enhance the interplay between magnetic and dielectric properties in these materials.Prediction for new magnetoelectric fluorides 2

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Section: Discussionmentioning

confidence: 99%

Prediction for new magnetoelectric fluorides

Nénert¹,

Palstra²

2007

J. Phys.: Condens. Matter

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“…External magnetic field higher than the critical fleld for the spin-flipping can change the direction of sublattice magnetizations [85], though the range of the direction is not so wide [86] and experiment has been scarce.…”

Section: Case Of Cr2o3mentioning

confidence: 99%

Magnetoelectric Effect in Magnetic Materials

1992

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Magnetoelectric effect in magnetic insulators is reviewed. Alter an intuitive explanation of the effect in antiferromagnetic Cr 2 O3, the following topics are discussed on the experiments. Measurement and controlling of antiferromagnetic domains as well as antiferromagnetic domain wall motion. Expansion of the free energy of crystals in terms of magnetic and electric fields and polarizations. Information on the magnetic symmetry of crystals. Investigation of mechanisms of magnetoelectric effect. Excited states and optical observation.

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“…These can be divided into electronic (i.e. frozen-ion) vs. lattice responses on the one hand, 11 and spin vs. orbital magnetic contributions on the other. 12 Ab initio theory is an ideal tool for unraveling the microscopic mechanisms of the ME effect in real materials, and the first calculations started to appear in recent years.…”

mentioning

confidence: 99%

Full magnetoelectric response of Cr2O3from first principles

et al. 2012

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The linear magnetoelectric response of Cr2O3 at zero temperature is calculated from first principles by tracking the change in magnetization under a macroscopic electric field. Both the spin and the orbital contributions to the induced magnetization are computed, and in each case the response is decomposed into lattice and electronic parts. We find that the transverse response is dominated by the spin-lattice and spin-electronic contributions, whose calculated values are consistent with static and optical magnetoelectric measurements. In the case of the longitudinal response, orbital contributions dominate over spin contributions, but the net calculated longitudinal response remains much smaller than the experimentally measured one at low temperatures. We also discuss the absolute sign of the magnetoelectric coupling in the two time-reversed magnetic domains of Cr2O3.

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Magnetoelectric effect in antiferromagnetic crystals

Cited by 54 publications

References 16 publications

Prediction for new magnetoelectric fluorides

Prediction for new magnetoelectric fluorides

Magnetoelectric Effect in Magnetic Materials

Full magnetoelectric response of Cr2O3from first principles

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