Biferroic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">Y</mml:mi><mml:mi mathvariant="normal">Cr</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>

Serrao, Claudy Rayan; Kundu, Asish K.; Krupanidhi, S. B.; Waghmare, Umesh V.; Rao, C. N. R.

doi:10.1103/physrevb.72.220101

Cited by 222 publications

(138 citation statements)

References 24 publications

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“…5 a) in agreement with the values reported in ref. [25,36]. A drastic decrease of both, the H c and M r for x=0.025 and 0.050 of Pr content is observed (Fig 5 a, b).…”

Section: M-h Hysteresis Loopsmentioning

confidence: 74%

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Durán

Escamilla

Escudero

et al. 2018

Phys. Rev. Materials

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Crystal structure, thermal and magnetic properties were systematically studied in the Y1-x Prx CrO3 with 0 ≤ x ≤ 0.3 compositions. Magnetic susceptibility and specific heat measurements show an increase of the antiferromagnetic transition temperature (TN ) as Pr is substituted in the Y sites and notable magnetic features are observed below TN . Strong coupling between magnetic and crystalline parameters is observed in a small range of Pr compositions. A small perturbation in the lattice parameters by Pr ion is sufficient to induce a spin reorientation transition followed by magnetization reversal, to finally induce exchange bias effect. The spin reorientation temperature (TSR) is increased from 35 K to 149 K for 0.025 ≤ x ≤ 0.1 compositions. It is found that the Cr spins sublattice rotates continuously from TSR to a new spin configuration a lower temperature. In addition, magnetization reversal is observed at T * ∼ 35 K for x= 0.05 up to T * ∼ 63 K for x = 0.20 composition. The M − H curves show negative exchange bias effect induced by Pr ions, which are observed below of 100 K and being more intense at 5 K. At 10 K, the magnetic contribution of the specific heat, as well as the ZFC magnetization, show the rise of a peak with increasing Pr content. The magnetic anomaly could be associated with the freezing of the Pr magnetic moment randomly distributed at the 4c crystallographic site. A clear correspondence between spin reorientation, magnetization reversal and exchange bias anisotropy with the tilting and octahedral distortion is also discussed.

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“…5 a) in agreement with the values reported in ref. [25,36]. A drastic decrease of both, the H c and M r for x=0.025 and 0.050 of Pr content is observed (Fig 5 a, b).…”

Section: M-h Hysteresis Loopsmentioning

confidence: 74%

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Durán

Escamilla

Escudero

et al. 2018

Phys. Rev. Materials

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“…To begin with, consider the parent compounds, YFeO 3 and YCrO 3 . As the experimental results(see later) show, the parent compounds are weak ferromagnets 4,23 . Such weak ferromagnetism (WFM) is caused by a small canting of the underlying antiferromagnetic lattice.…”

Section: Ef F Bαmentioning

confidence: 76%

Weak ferromagnetism and magnetization reversal in YFe _1−x Cr _x O ₃

Dasari¹,

Mandal²,

Sundaresan³

et al. 2012

EPL

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We present combined experimental and theoretical studies on the magnetic properties of a solid solution between yttrium orthoferrite and yttrium orthochromite systems, YFe1−xCrxO3 (0 ≤ x ≤ 1) where Fe 3+ and Cr 3+ ions are distributed randomly at the same crystallographic site (4b). We found that all the compositions exhibit weak ferromagnetism below the Néel temperature that decreases non-linearly with increasing x, while certain intermediate compositions (x = 0.4, 0.5) show a compensation point and magnetization reversal. This unusual behavior is explained based on a simple model comprising the isotropic superexchange and the antisymmetric Dzyaloshinskii-Moriya interactions. This model explains the magnetization behavior in the entire range of doping and temperature including the magnetization reversal which results from an interplay of various DM interactions such as, Fe-O-Fe, Cr-O-Cr and Fe-O-Cr.

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“…Also, it has been proposed that local noncentrosymmetry drives ferroelectricity in YCrO 3 , though, its average crystal structure is centrosymmetric 20,24 . Keeping this in mind XRD patterns of GdCrO 3 were also refined with non-centrosymmetric P na2 1 space group, as depicted in insets of FIG.…”

Section: Resultsmentioning

confidence: 99%

“…Structural instability studies have been used to examine a large variety of ferroelectric perovskite oxides [20][21][22][23]44,45 . Calculated phonon dispersion curves are shown in FIG.…”

Section: Resultsmentioning

confidence: 99%

Local inversion symmetry breaking and spin-phonon coupling in the perovskite GdCrO3

et al. 2017

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Our detailed temperature dependent synchrotron powder x-ray diffraction studies along with first-principles density functional perturbation theory calculations, enable us to shed light on the origin of ferroelectricity in GdCrO3. The actual lattice symmetry is found to be noncentrosymmetric orthorhombic P na21 structure, supporting polar nature of the system. Polar distortion is driven by local symmetry breaking and by local distortions dominated by Gd off-centering. Our study reveals an intimate analogy between GdCrO3 and YCrO3. However, a distinctive difference exists that Gd is less displacive compared to Y, which results in an orthorhombic P na21 structure in GdCrO3 in contrast to monoclinic structure in YCrO3 and consequently, decreases its polar property. This is due to the subtle forces involving Gd-4f electrons either directly or indirectly. A strong magneto-electric coupling is revealed using Raman measurements based analysis in the system below Cr-ordering temperature, indicating their relevance to ferroelectric modulation.

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BiferroicYCrO3

Cited by 222 publications

References 24 publications

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Weak ferromagnetism and magnetization reversal in YFe _1−x Cr _x O ₃

Local inversion symmetry breaking and spin-phonon coupling in the perovskite GdCrO3

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BiferroicYCrO3

Cited by 222 publications

References 24 publications

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Reversal magnetization, spin reorientation, and exchange bias in YCrO3 doped with praseodymium

Weak ferromagnetism and magnetization reversal in YFe 1−x Cr x O 3

Local inversion symmetry breaking and spin-phonon coupling in the perovskite GdCrO3

Contact Info

Product

Resources

About

Weak ferromagnetism and magnetization reversal in YFe _1−x Cr _x O ₃