The phenomenon of negative magnetization and its implications

Kumar, Amit; Yusuf, S. M.

doi:10.1016/j.physrep.2014.10.003

Cited by 251 publications

(124 citation statements)

References 230 publications

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“…This fact indicates exchange bias (EB) induced by Pr substitution. It is well known that the EB effects arise when the FM and AFM domains are coupled through an interface [6,37]. The results here suggest that both FM and AFM domains in close contact lead to an additional anisotropy (showed by asymmetric, H c ) via exchange coupling in the bulk-doped samples.…”

Section: M-h Hysteresis Loopssupporting

confidence: 52%

“…High T c superconductivity, colossal magnetoresistance, coexistence and competition of magnetism and ferroelectricity are perhaps the most known examples. Recently, there is a renewed interest in rare earth manganites, ferrites, orthoferrites and orthochromites due to the coexistence or coupling between lattice and magnetic order parameters leading to magnetoelectric effect and striking/exotic magnetic properties [2][3][4][5][6]. In these compounds, from the basic point of view, a growing interest has been focused on the microscopic interactions responsible for the interplay between the lattice and spin ground states [7].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the magnetic behavior becomes more complex as the magnetization of the f −ion subsystem increases below T N . Accordingly, a rich variety of magnetic and electric properties, such as magnetostriction induced polarization, spin reorientation, magnetization reversal and exchange bias is reported in several orthorhombic manganites, orthochromites and orthoferrites [3,6,15]. Different combinations of rare earth and transition metal ions including a relative concentration between them can produce ferroelectric polarization at the magnetic ordering and a characteristic behavior called magnetization arXiv:1801.04967v1 [cond-mat.mtrl-sci] 15 Jan 2018 reversal (MR).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: M-h Hysteresis Loopssupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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show abstract

“…[18,19] and references therein). Nowadays a large body of magnetic materials might be addressed as systems with competing antisymmetric exchange [20].…”

mentioning

confidence: 99%

Microscopic theory of Dzyaloshinskii–Moriya coupling and related exchange-relativistic effects

Moskvin

2016

Journal of Magnetism and Magnetic Materials

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“…couples antiferromagnetically with Cr 3? due to the Nd-O-Cr interactions [13,46]. This indicates that the Nd 3?…”

Section: Magnetisation Measurements and Analysismentioning

confidence: 96%

Structural, magnetic and electrical analysis of La1−x Nd x CrO3 (0.00 < x < 0.15): synthesised by sol–gel citrate combustion method

Selvadurai

Pazhanivelu

Jagadeeshwaran

et al. 2016

J Sol-Gel Sci Technol

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The phenomenon of negative magnetization and its implications

Cited by 251 publications

References 230 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

Microscopic theory of Dzyaloshinskii–Moriya coupling and related exchange-relativistic effects

Structural, magnetic and electrical analysis of La1−x Nd x CrO3 (0.00 < x < 0.15): synthesised by sol–gel citrate combustion method

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