Magnetic Structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>N-Type Compounds

Takei, W. J.; Heikes, R. R.; Shirane, G.

doi:10.1103/physrev.125.1893

Cited by 185 publications

(100 citation statements)

References 6 publications

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“…For example, η-Mn 3 N 2 exhibits an antiferromagnetic spin structure [167], -Mn 4 N has a non-collinear ferrimagnetic spin-structure with a Curie temperature in the range of T C = 738-748 K [217,218], γ -Fe 4 N is a ferromagnetic conductor with high thermal stability [219,220] The synthesis conditions for the above mentioned transition metal nitrides vary remarkably. The early 3d-transition metals are thermodynamically more stable than the later ones, which is manifested in the synthesis of the nitrides of Ti to Ni from the metals in supercritical nitrogen at ∼1800 K and 10,000 MPa.…”

Section: Transition Metal Nitridesmentioning

confidence: 99%

Chemistry of Ammonothermal Synthesis

2014

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Ammonothermal synthesis is a method for synthesis and crystal growth suitable for a large range of chemically different materials, such as nitrides (e.g., GaN, AlN), amides (e.g., LiNH 2 , Zn(NH 2 ) 2 ), imides (e.g., Th(NH) 2 ), ammoniates (e.g., Ga(NH 3 ) 3 F 3 , [Al(NH 3 ) 6 ]I 3 · NH 3 ) and non-nitrogen compounds like hydroxides, hydrogen sulfides and polychalcogenides (e.g., NaOH, LiHS, CaS, Cs 2 Te 5 ). In particular, large scale production of high quality crystals is possible, due to comparatively simple scalability of the experimental set-up. The ammonothermal method is defined as employing a heterogeneous reaction in ammonia as one homogenous fluid close to or in supercritical state. Three types of milieus may be applied during ammonothermal synthesis: ammonobasic, ammononeutral or ammonoacidic, evoked by the used starting materials and mineralizers, strongly influencing the obtained products. There is little known about the dissolution and materials transport processes or the deposition mechanisms during ammonothermal crystal growth. However, the initial results indicate the possible nature of different intermediate species present in the respective milieus. A Alkali or alkaline-earth metal, A(1) = alkali metal, A(2) = alkaline-earth metal B Further metal, might be main group metal, transition or rare-earth metal M Transition metal, excluding Sc, Y, La R Rare-earth metal, Sc, Y, La-Lu X Halide E Other main group element

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Section: Transition Metal Nitridesmentioning

confidence: 99%

Chemistry of Ammonothermal Synthesis

2014

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“…It is known from previous bulk studies that manganese nitride has different bulk phases, including θ (MnN), η (Mn 3 N 2 ), ε (Mn 4 N), and ζ (Mn 5 N 2 , Mn 2 N, and Mn 2 N 0.86 ). [11][12][13][14][15][16][17][18][19][20][21] Both structural and magnetic measurements have been reported for most of these bulk phases, and particular attention has been paid to the θ-MnN, η-Mn 3 N 2 , and ε-Mn 4 N. For the applications of this material, it is important to investigate the possibility of epitaxial growth. The control of the phases, and therefore the magnetic properties and orientations of manganese nitride grown on MgO(001) using molecular beam epitaxy (MBE), was reported by Yang et al recently.…”

Section: Introductionmentioning

confidence: 99%

Atomic-scale structure of η-phase Mn3N2(010) studied by scanning tunneling microscopy and first-principles theory

Yang

Smith

et al. 2004

Surface Science

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“…The XRD pattern before nitriding contained ¢-Mn peaks, whereas after nitriding it contained Mn 4 N and Mn 3 SnN peaks. Because Mn 4 N is ferromagnetic 5) and Mn 3 SnN is antiferromagnetic 8) at room temperature, Mn 4 N contributed to the increase in magnetization after nitriding.…”

Section: Mnsnn Systemmentioning

confidence: 99%

“…Furthermore, Mn is naturally abundant and nitriding changes its magnetic properties from antiferromagnetic to ferromagnetic. 5) We reported that MnNiN alloys show high coercivity, 6,7) and we have continued to investigate the magnetic properties of MnXN (X = Fe, Sn, Ti, Zr, B, or Nb). This paper describes that MnSnCoN alloys exibit high coercivity more than 800 kA/m.…”

Section: Introductionmentioning

confidence: 99%