Structure, magnetic and electrical transport properties of Mn4-xAgxN compounds

• Autorzy: Feng W. J. , Li D. , Zhang Q. , Deng Y. F. , Ma S. , Zhang Z. D.
• Języki publikacji: EN

Abstrakty

EN

Mn4-xAgxN compounds (x = 0.0, 0.3, 0.6, 1.0) were prepared by milling and subsequently annealing the mixture of Mn2N0.86, Mn, and Ag powders. All compounds display good single-phase characteristics. Both Mn4N and Mn3.7Ag0.3N exhibit ferrimagnetism, and a little Ag replacement of Mn can improve the saturation magnetization. The magnetic transition of Mn3.4Ag0.6N and Mn3AgN below 15 K is from triangular antiferromagnetism to non-coplanar ferrimagnetism, while the ones at 256 and 275 K (Mn3.4Ag0.6N and Mn3AgN, respectively) have been ascribed to the gradual transition, as temperature increases, from the triangular antiferromagnetic structure T5g to a ferrimagnetic-like one. Two minima appear on the p(T) curves for Mn3AgN, with the observation of a positive magnetoresistance throughout the whole tempeature-dependent change.

Słowa kluczowe

EN

antiferromagnetism; spin reorientation; magnetoresistance

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 1
• Strony: 33--42
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Feng W. J.

autor

Li D.

autor

Zhang Q.

autor

Deng Y. F.

autor

Ma S.

autor

Zhang Z. D.

• Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of SciencesShenyang 110015, China

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