Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba3NbFe3Si2O14

Lee, Nara; Choi, Young Jai; Cheong, S.-W.

doi:10.1063/1.4866187

Cited by 25 publications

(24 citation statements)

References 22 publications

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“…In particular, Ba 3 NbFe 3 Si 2 O 14 single crystals have been shown to possess a rather unique antiferromagnetic structure below T N ¼26 K [8] with single domain helicity and triangular chirality. In addition to this, Ba 3 NbFe 3 Si 2 O 14 exhibits ferroelectricity developing near T N [15,16]. This property is particularly striking as no symmetry loss from the P321 space group can be detected within the resolution of conventional methods such as diffraction [17].…”

Section: Introductionmentioning

confidence: 91%

Nuclear and magnetic supercells in the multiferroic candidate: Pb3TeMn3P2O14

Silverstein

Huq

Lee

et al. 2015

Journal of Solid State Chemistry

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a b s t r a c tThe dugganites, Te 6 þ -containing members of the langasite series, have attracted recent interest due to their complex low-temperature magnetic unit cells, magnetodielectric, and potentially multiferroic properties. For Pb 2 þ -containing dugganites, a large monoclinic supercell was reported and was found to have a profound effect on the low temperature magnetism and spin excitation spectra. Pb 3 TeMn 3 P 2 O 14 is another dugganite previously shown to distort away from the canonical P321 langasite unit cell, although this supercell was never fully solved. Here we report the full crystal and magnetic structure solution of Pb 3 TeMn 3 P 2 O 14 using synchrotron x-ray and neutron diffraction data: a large trigonal supercell is observed in this material, which is believed to be the first supercell of its kind in the langasite family. Here, the magnetic structure, high-magnetic field behavior, and dielectric properties of Pb 3 TeMn 3 P 2 O 14 are presented. In addition to showing weak magnetoelectric behavior similar to other langasites, it was found that a phase transition occurs at 3 T near the antiferromagnetic transition temperature.

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Section: Introductionmentioning

confidence: 91%

Nuclear and magnetic supercells in the multiferroic candidate: Pb3TeMn3P2O14

Silverstein

Huq

Lee

et al. 2015

Journal of Solid State Chemistry

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“…It was demonstrated that the structure of langasites above T N becomes both paramagnetic and paraelectric. A considerable current interest is attracted to the problem of the crystallo graphic [15] and magnetic chiralities [16][17][18] in these compounds.…”

Section: Introductionmentioning

confidence: 99%

Equation of state and structural phase transitions in iron-based Ba3TaFe3Si2O14 langasite at high hydrostatic pressures

et al. 2015

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“…This has been confirmed by recent polarization studies which show the presence of intrinsic electric polarization in the compound. The intrinsic polarization present in the absence of a magnetic field has been found to reverse its direction with increasing magnetic field24.…”

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confidence: 96%

Effect of divalent Ba cation substitution with Sr on coupled ‘multiglass’ state in the magnetoelectric multiferroic compound Ba3NbFe3Si2O14

Rathore

Vitta

2015

Sci Rep

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(Ba/Sr)3NbFe3Si2O14 is a magneto-electric multiferroic with an incommensurate antiferromagnetic spiral magnetic structure which induces electric polarization at 26 K. Structural studies show that both the compounds have similar crystal structure down to 6 K. They exhibit a transition, TN at 26 K and 25 K respectively, as indicated by heat capacity and magnetization, into an antiferromagnetic state. Although Ba and Sr are isovalent, they exhibit very different static and dynamic magnetic behaviors. The Ba-compound exhibits a glassy behavior with critical slowing dynamics with a freezing temperature of ~35 K and a critical exponent of 3.9, a value close to the 3-D Ising model above TN, in addition to the invariant transition into an antiferromagnetic state. The Sr-compound however does not exhibit any dispersive behavior except for the invariant transition at TN. The dielectric constant reflects magnetic behavior of the two compounds: the Ba-compound has two distinct dispersive peaks while the Sr-compound has a single dispersive peak. Thus the compounds exhibit coupled ‘multiglass’ behavior. The difference in magnetic properties between the two compounds is found to be due to modifications to super exchange path angle and length as well as anti-site defects which stabilize either ferromagnetic or antiferromagnetic interactions.

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Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba3NbFe3Si2O14

Cited by 25 publications

References 22 publications

Nuclear and magnetic supercells in the multiferroic candidate: Pb3TeMn3P2O14

Nuclear and magnetic supercells in the multiferroic candidate: Pb3TeMn3P2O14

Equation of state and structural phase transitions in iron-based Ba3TaFe3Si2O14 langasite at high hydrostatic pressures

Effect of divalent Ba cation substitution with Sr on coupled ‘multiglass’ state in the magnetoelectric multiferroic compound Ba3NbFe3Si2O14

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