Enhancement of antiferromagnetic interaction and transition temperature in M3TeO6 systems (M = Mn, Co, Ni, Cu)

Mathieu, Roland; Иванов, С. А.; Nordblad, Per; Weil, Mat­thias

doi:10.1140/epjb/e2013-40152-x

Cited by 41 publications

(46 citation statements)

References 15 publications

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“…1) but much richer than those reported earlier [20][21]. Looking from room temperature side, in Fig [18,20,21]. We have corroborated this enhancement with our earlier structural and spectroscopic results, which is explained via variations in average bond lengths and average charge ratios as a function of Mn concentration [17].…”

Section: Methodssupporting

confidence: 89%

“…The normal trend to analyze the M vs T data is through CW fit, which may provide the nature of existing magnetic interactions and effective magnetic moment [18]. Fit shows negative value of Θ CW (CW parameter) suggesting presence of strong AFM interactions in CMTO, in agreement with earlier reports [20][21]. The effective magnetic moment ( ) is estimated from the CW parameter (obtained from χ -1 = (T-Θ CW )/C CW ) using relation.…”

Section: (D) (E) (F)supporting

confidence: 89%

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Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Singh

Ghosh

Prajapat

et al. 2016

Materials Research Bulletin

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We report near room temperature ferromagnetic (FM) as well as low temperature antiferromagnetic (AFM) correlations in Co 3-x Mn x TeO 6 (CMTO); (x = 0.5, 1 and 2) solid solutions using thorough DC magnetization studies. For all x, CMTO show not only short-range robust FM order ~ 185 K, but also long range enhanced AFM order ≤ 45 K. Griffiths-like FM interactions show up in magnetization data; it exists over an extended temperature range and remains unsuppressed in magnetic field as large as 1 T, indicating its robustness. Variations in both FM and AFM phases as a function of Mn concentration also support our observation of anomalous behavior in average bond distances and charge states (JAP 116: 074904 (2014)).Further, an attempt towards the structural insight into the observed complex magnetic behavior by using network like structural analysis has been drawn. These observations make CMTO an interesting magnetic system from fundamental and application perspective.

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Section: Methodssupporting

confidence: 89%

Section: (D) (E) (F)supporting

confidence: 89%

Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Singh

Ghosh

Prajapat

et al. 2016

Materials Research Bulletin

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“…The absence of the net polarization above T N in Ni 3 TeO 6 with polar crystal structure below 1000 K [21] could be interpreted in terms of the absence of pyroelectricity above T N . However, it could be also the consequence of a pyroelectric (ferroelectric) transition temperature at much higher temperatures far above T N (i.e., around $1000 K).…”

Section: K the Electric Polarization Of Ni 3 Teo 6 Amounts Tomentioning

confidence: 98%

“…Finally, Ni 3 TeO 6 (M ¼ Ni) crystallizes in a non-centrosymmetric structure (space group R3) [19,20]. A possible polar to non-polar transition was reported at about 1000 K [21]. There is no structural transition in Ni 3 TeO 6 across T N , as reported in low temperature neutron diffraction experiments [22].…”

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confidence: 95%

Spin‐driven pyroelectricity in Ni₃TeO₆ without ferroelectric signatures of the transition at Néel temperature

Zhao

Komarek

2017

Physica Rapid Research Ltrs

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Here we report on dielectric studies on Ni3TeO6. We confirm the spin‐driven pyroelectric transition at the Néel temperature (TN) of ∼52.5 K. The measurement of single crystalline and polycrystalline samples excludes a ferroelectric nature of the transition at TN in this compound. The excellent pyroelectric properties without any intrinsic ferroelectric hysteresis make Ni3TeO6 appropriate for applications in future devices. Pyroelectric measurements on our Ni3TeO6 single crystals. The polarization that appears on cooling through TN can not be inverted by opposite poling fields (applied when cooling from above TN to base temperature).

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“…Interest in 3 d transition metal tellurates, M 3 TeO 6 ( M = 3 d transition metals), has been rising since the beginning of this century owing to their rich crystalline and multiferroic properties 1–4 ; they also offer unprecedented opportunities for the development of spintronics and information storage devices 5,6 . One of the members of this class of tellurates is Ni 3 TeO 6 (NTO), which was developed approximately half a century ago as a result of the efforts of Newnham and Meagher 7 , who were searching for a multifunctional dielectric-magnetic material.…”

Section: Introductionmentioning

confidence: 99%

Anisotropy in the magnetic interaction and lattice-orbital coupling of single crystal Ni3TeO6

Ghosh

Chen

Qiu

et al. 2018

Sci Rep

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This investigation reports on anisotropy in the magnetic interaction, lattice-orbital coupling and degree of phonon softening in single crystal Ni3TeO6 (NTO) using temperature- and polarization-dependent X-ray absorption spectroscopic techniques. The magnetic field-cooled and zero-field-cooled measurements and temperature-dependent Ni L3,2-edge X-ray magnetic circular dichroism spectra of NTO reveal a weak Ni-Ni ferromagnetic interaction close to ~60 K (TSO: temperature of the onset of spin ordering) with a net alignment of Ni spins (the uncompensated components of the Ni moments) along the crystallographic c-axis, which is absent from the ab-plane. Below the Néel temperature, TN~ 52 K, NTO is stable in the antiferromagnetic state with its spin axis parallel to the c-axis. The Ni L3,2-edge X-ray linear dichroism results indicate that above TSO, the Ni 3d eg electrons preferentially occupy the out-of-plane 3d3z2−r2 orbitals and switch to the in-plane 3dx2−y2 orbitals below TSO. The inherent distortion of the NiO6 octahedra and anisotropic nearest-neighbor Ni-O bond lengths between the c-axis and the ab-plane of NTO, followed by anomalous Debye-Waller factors and orbital-lattice in conjunction with spin-phonon couplings, stabilize the occupied out-of-plane (3d3z2−r2) and in-plane (3dx2−y2) Ni eg orbitals above and below TSO, respectively.

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Enhancement of antiferromagnetic interaction and transition temperature in M3TeO6 systems (M = Mn, Co, Ni, Cu)

Cited by 41 publications

References 15 publications

Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Spin‐driven pyroelectricity in Ni₃TeO₆ without ferroelectric signatures of the transition at Néel temperature

Anisotropy in the magnetic interaction and lattice-orbital coupling of single crystal Ni3TeO6

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Enhancement of antiferromagnetic interaction and transition temperature in M3TeO6 systems (M = Mn, Co, Ni, Cu)

Cited by 41 publications

References 15 publications

Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Griffiths like robust ferromagnetism in Co 3-x Mn x TeO 6 ; ( x = 0.5, 1, 2)

Spin‐driven pyroelectricity in Ni3TeO6 without ferroelectric signatures of the transition at Néel temperature

Anisotropy in the magnetic interaction and lattice-orbital coupling of single crystal Ni3TeO6

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Spin‐driven pyroelectricity in Ni₃TeO₆ without ferroelectric signatures of the transition at Néel temperature