Etudes par diffraction neutronique et RMN de ZnMn3C et GaMn3C0.935

Fruchart, D.; Bertaut, E.F.; Clerc, B. Le; Khoï, Le Dang; Veillet, P.; Lorthioir, G.; Fruchart, Mme E.; Fruchart, R.

doi:10.1016/0022-4596(73)90012-1

Cited by 36 publications

(20 citation statements)

References 8 publications

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“…Fig. 1 shows NMR spectrum for the F state of Mn 3 GaC at 195 K, which is very similar to the reported ones [7,8]. As is shown in the inset of Fig.…”

supporting

confidence: 81%

“…The NMR spectrum for the I state is similar to that of Mn 3 GaC 0.935 at 140 K [8]. This suggests that the I phase has the same noncollinear spin structure as that of Mn 3 GaC 0.935 [8]. The 55 Mn frequencies for the I and F states are nearly equal to each other, indicating that the Mn moments for both the states are nearly equal.…”

mentioning

confidence: 49%

“…1. The NMR spectrum for the I state is similar to that of Mn 3 GaC 0.935 at 140 K [8]. This suggests that the I phase has the same noncollinear spin structure as that of Mn 3 GaC 0.935 [8].…”

mentioning

confidence: 50%

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NMR study of pressure-induced phase transition in Mn3Ga1−Al C (x=0.02)

Kasamatsu

Kanomata

Kaneko

et al. 2004

Journal of Magnetism and Magnetic Materials

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“…Fig. 1 shows NMR spectrum for the F state of Mn 3 GaC at 195 K, which is very similar to the reported ones [7,8]. As is shown in the inset of Fig.…”

supporting

confidence: 81%

mentioning

confidence: 49%

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NMR study of pressure-induced phase transition in Mn3Ga1−Al C (x=0.02)

Kasamatsu

Kanomata

Kaneko

et al. 2004

Journal of Magnetism and Magnetic Materials

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“…Although the role of carbon content in inducing the magnetic phase transformation has been contemplated in literature [1,10], the exact nature of the driving force in inducing the magnetostructural transformation is not yet understood. Neutron diffraction studies have shown that increase in C concentration results in a lattice expansion, increasing Mn-Mn next nearest neighbor distance.…”

Section: Introductionmentioning

confidence: 99%

Effect of carbon content on magnetostructural properties of Mn3GaC

Dias

Priolkar

Nigam

2014

Journal of Magnetism and Magnetic Materials

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Effect of carbon content on magnetostructural transformation in antiperovskites of the type Mn 3 GaC x (x = 0.8, 1.0 and 1.05) has been investigated. It is found that, increase in carbon content changes the ground state from ferromagnetic metallic (x = 0.8) to antiferromagnetic semiconducting (x = 1.05) type. This has been attributed to localization of itinerant Mn 3d electrons due to increased Mn3d -C2p hybridization. Such a hybridization strengthens Mn-C-Mn antiferromagnetic interactions over Mn-Mn ferromagnetic interactions. Further, magnetic field can be used as a tool to modulate the relative strengths of these ferromagnetic and antiferromagnetic interactions thereby affecting the nature and strength of magnetocaloric properties.

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“…Ternary manganese compounds with a formula Mn 3 MX (M = Ga, Sn, Zn, Cu and X = C and N) and the cubic crystal structure of a perovskite type have attracted much interest due to the peculiar relationship between lattice and magnetism which leads to a large variety of magnetic orderings and structural transformations [1][2][3][4][5][6][7][8][9]. The control of magnetostructural correlations in a magnetic metal is extremely important in various advanced industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Electronic structure and x-ray magnetic circular dichroism in the Mn3CuN perovskite

Antonov

Bekenov

2014

Low Temperature Physics

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The electronic and magnetic structures of Mn 3 CuN are investigated theoretically from first principles using the fully relativistic Dirac LMTO band structure method. Mn 3 CuN possesses a magnetic phase transition at T C = 143 K from a high temperature paramagnetic phase to a low temperature ferromagnetic one with a noncollinear magnetic structure. The transition is accompanied by a structural change from the cubic to the tetragonal lattice. In low temperature phase two Cu moments and two Mn moments (Mn 2 and Mn 3 ) ferromagnetically align along the c axis while other four Mn 1 magnetic moments are canted from the c axis to [111] direction by angle = 76.2. The x-ray absorption spectra and x-ray magnetic circular dichroism (XMCD) spectra of Mn 3 CuN are investigated theoretically from first principles. The origin of the XMCD spectra in the Mn 3 CuN compound is examined. The calculated results are compared with the experimental data.

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Etudes par diffraction neutronique et RMN de ZnMn3C et GaMn3C0.935

Cited by 36 publications

References 8 publications

NMR study of pressure-induced phase transition in Mn3Ga1−Al C (x=0.02)

NMR study of pressure-induced phase transition in Mn3Ga1−Al C (x=0.02)

Effect of carbon content on magnetostructural properties of Mn3GaC

Electronic structure and x-ray magnetic circular dichroism in the Mn3CuN perovskite

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