Spin-glass-like behavior and negative thermal expansion in antiperovskite Mn3Ni1−xCuxN compounds

Ding, Lei; Wang, Wenwen; Sun, Ying; Colin, Claire; Chu, Liangliang

doi:10.1063/1.4921537

Cited by 21 publications

(19 citation statements)

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“…In this Rapid Communication, we demonstrate that the AHE could indeed be realized in manganese nitrides, by studying the Mn 3 NiN system [12,13,17,18]. We first found that in stoichiometric Mn 3 NiN, a weak signal of AHE is observed below the noncollinear AFM ordering temperature of 180K, yet disappeared as the temperature further decreases.…”

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confidence: 96%

Anomalous Hall effect in the noncollinear antiferromagnetic antiperovskite Mn3Ni1−xCuxN

et al. 2019

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We report the anomalous Hall effect (AHE) in antiperovskite Mn3NiN with substantial doping of Cu on the Ni site (i.e. Mn3Ni1−xCuxN), which stabilizes a noncollinear antiferromagnetic (AFM) order compatible with the AHE. Observed on both sintered polycrystalline pieces and single crystalline films, the AHE does not scale with the net magnetization, contrary to the conventional ferromagnetic case. The existence of the AHE is explained through symmetry analysis based on the Γ4g AFM order in Cu doped Mn3NiN. DFT calculations of the intrinsic contribution to the AHE reveal the non-vanishing Berry curvature in momentum space due to the noncollinear magnetic order. Combined with other attractive properties, antiperovskite Mn3AN system offers great potential in AFM spintronics.

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confidence: 96%

Anomalous Hall effect in the noncollinear antiferromagnetic antiperovskite Mn3Ni1−xCuxN

et al. 2019

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“…25 The magnetisms of Ga 0.9 Fe 3.1 N was analyzed by Mössbauer studies and understood as a kind of "cluster magnetism" where 13-atom Fe clusters are incorporated in a metallic gallium sublattice. 26,27 Spin-glass behavior has only been found in several Mn-, [12][13][14][15][16] Co-, 17 Ni-, 17 and Cr-18 based ternary nitrides. Up to the present day, however, there are no investigations of spin-glass behavior in A x Fe 4−x N. The only known Fe-based spin glass is the carbide with the reported composition SnFe 3 C that exhibits a static glassy transition temperature of 20.3 K. 19 In the present study, a comprehensive magnetic characterization of Sn 0.9 Fe 3.1 N is carried out.…”

Section: Introductionmentioning

confidence: 99%

“…Both nitrides and carbides adopt a simple antiperovskite-like structure in space group Pm3;¯m and feature remarkable properties, such as giant magnetoresistance effect (GMR), 2-4 negative or zero thermal expansion (NTE or ZTE), [5][6][7] nearly zero temperature coefficient of resistance (TCR), 8,9 giant magnetostriction (MS), 10 giant barocaloric effect, 11 spin-glass behavior, [12][13][14][15][16][17][18][19] and phase separation. 20 These properties have been mostly found in Mn-based nitrides (AMn 3 N) [5][6][7][8][9][10][11][12][13][14][15][16] but recent investigations also focused on Ni-, 17 Co-, 17 and Cr- systems, a frustrated system was described for the amorphous binary alloy Fe x Sn 1−x where structural disorder comes together with site disorder. 25 The magnetisms of Ga 0.9 Fe 3.1 N was analyzed by Mössbauer studies and understood as a kind of "cluster magnetism" where 13-atom Fe clusters are incorporated in a metallic gallium sublattice.…”

Section: Introductionmentioning

confidence: 99%

Spin-glass behavior of Sn0.9Fe3.1N: An experimental and quantum-theoretical study

Scholz

Dronskowski

2016

AIP Advances

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Based on comprehensive experimental and quantum-theoretical investigations, we identify Sn0.9Fe3.1N as a canonical spin glass and the first ternary iron nitride with a frustrated spin ground state. Sn0.9Fe3.1N is the end member of the solid solution SnxFe4−xN (0 < x ≤ 0.9) derived from ferromagnetic γ′-Fe4N. Within the solid solution, the gradual incorporation of tin is accompanied by a drastic weakening of the ferromagnetic interactions. To explore the dilution of the ferromagnetic coupling, the highly tin-substituted Sn0.9Fe3.1N has been magnetically reinvestigated. DC magnetometry reveals diverging susceptibilities for FC and ZFC measurements at low temperatures and an unsaturated hysteretic loop even at high magnetic fields. The temperature dependence of the real component of the AC susceptibility at different frequencies proves the spin-glass transition with the characteristic parameters Tg = 12.83(6) K, τ* = 10−11.8(2) s, zv = 5.6(1) and ΔTm/(Tm ⋅ Δlgω) = 0.015. The time-dependent response of the magnetic spins to the external field has been studied by extracting the distribution function of relaxation times g(τ, T) up to Tg from the complex plane of AC susceptibilities. The weakening of the ferromagnetic coupling by substituting tin into γ′-Fe4N is explained by the Stoner criterion on the basis of electronic structure calculations and a quantum-theoretical bonding analysis.

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“…[1,2,3], near-zero temperature coefficient of resistivity (TCR) [4,5,6], magnetostriction [7], spin-glass (SG) behavior [8,9,10] and magnetocaloric effect [11,12]. It has been found that these interesting physical properties are sensitive to the number of the valence electrons of metal X located at the corners of antiperovskite unit cell, which contributes itinerant electrons at the Fermi level [13].…”

Section: Introductionmentioning

confidence: 99%

Unusual Electrical Transport Driven by the Competition between Antiferromagnetism and Ferromagnetism in Antiperovskite Mn3Zn1−xCoxN

et al. 2018

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The magnetic, electrical transport and thermal expansion properties of Mn3Zn1−xCoxN (x = 0.2, 0.4, 0.5, 0.7, 0.9) have been systematically investigated. Co-doping in Mn3ZnN complicates the magnetic interactions, leading to a competition between antiferromagnetism and ferromagnetism. Abrupt resistivity jump phenomenon and negative thermal expansion behavior, both associated with the complex magnetic transition, are revealed in all studied cases. Furthermore, semiconductor-like transport behavior is found in sample x = 0.7, distinct from the metallic behavior in other samples. Below 50 K, resistivity minimum is observed in samples x = 0.4, 0.7, and 0.9, mainly caused by e-e scattering mechanism. We finally discussed the strong correlation among unusual electrical transport, negative thermal expansion and magnetic transition in Mn3Zn1−xCoxN, which allows us to conclude that the observed unusual electrical transport properties are attributed to the shift of the Fermi energy surface entailed by the abrupt lattice contraction.

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Spin-glass-like behavior and negative thermal expansion in antiperovskite Mn3Ni1−xCuxN compounds

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Cited by 21 publications

References 39 publications

Anomalous Hall effect in the noncollinear antiferromagnetic antiperovskite Mn3Ni1−xCuxN

Anomalous Hall effect in the noncollinear antiferromagnetic antiperovskite Mn3Ni1−xCuxN

Spin-glass behavior of Sn0.9Fe3.1N: An experimental and quantum-theoretical study

Unusual Electrical Transport Driven by the Competition between Antiferromagnetism and Ferromagnetism in Antiperovskite Mn3Zn1−xCoxN

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