Conversion of magnetic structure by slight dopants in geometrically frustrated antiperovskite Mn3GaN

Takenaka, K.; Inagaki, T.; Takagi, H.
September 2009
Applied Physics Letters;9/28/2009, Vol. 95 Issue 13, p132508
Academic Journal
We found that a few percent of Fe dopants at the Mn sites alters the antiferromagnetic spin structure of Mn3GaN and induces a first-order antiferromagnetic-ferromagnetic phase transition accompanied by a large volume change. The drastic conversion of the spin alignment originates from phase competition due to a geometrical frustration in the Mn6N octahedron. This result demonstrates that the magnetic and other unique related properties of manganese antiperovskites are controllable by element substitution. Comparing with the ferromagnetic state in Mn3Ga(N1-xCx), we discuss a possible spin structure that accounts for the conversion of the magnetic states.


Related Articles

  • Nature of the negative thermal expansion in antiperovskite compound Mn3ZnN. Qu, B. Y.; Pan, B. C. // Journal of Applied Physics;Dec2010, Vol. 108 Issue 11, p113920 

    The magnetic structures of Mn3ZnN compound are theoretically studied, from which a new magnetic ground state (MGS) structure of Mn3ZnN is predicted. Comparison of the calculated volumes between different magnetic structures shows that the Mn3ZnN compound experiences a volume expansion from the...

  • Infuence of the Grain Size on the Magnetic Properties of TbMnO3. Bażela, W.; Dula, M.; Dyakonov, V.; Gondekd, Ł.; Hoser, A.; Hoffmann, J.-U.; Penc, B.; Szytuła, A.; Kravchenko, Z.; Nosalevc, I.; Zarzycki, A. // Acta Physica Polonica, A.;Apr2012, Vol. 121 Issue 4, p785 

    The magnetic properties including magnetic structure of poly and nano samples of TbMnO3 are determined. All the samples investigated are antiferromagnets. In these samples the Mn ad Tb moments order antiferromagnetically at different temperatures and form modulated magnetic structure described...

  • Studies of magnetic properties of the stabilizing layer for synthetic antiferromagnetically coupled media. Shan, Z. S.; Bitman, L.; Malhotra, S. S.; Stafford, D.; Bian, B.; Bertero, G.; Xu, Y. F.; Yan, M. L.; Sellmyer, D. J. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p7768 

    The effects of the stabilizing layer thickness and its temperature dependence on the magnetic properties were investigated experimentally. These results were used to analyze the magnetic structure of the thin stabilizing layer and its effect on the coupling strength, which is valuable for...

  • Antiferromagnetic iridium manganese based intermediate layers for perpendicular magnetic recording media. Srinivasan, Kumar; Piramanayagam, S. N.; Sbiaa, Rachid // Applied Physics Letters;8/18/2008, Vol. 93 Issue 7, p072503 

    Current generation CoCrPt oxide based perpendicular magnetic recording media use two Ru-based intermediate layers in order to grow crystallographically textured, and magnetically isolated granular media. In this work, the advantage of replacing the Ru grain isolation layer with antiferromagnetic...

  • Magnetic properties of mechanically milled nanosized Mn. WU, X. J.; XU, X. W.; SUN, X. S. // Materials Science (0137-1339);2009, Vol. 27 Issue 3, p857 

    Nanosized Mn powders were fabricated by milling Mn flakes in pure ethyl alcohol followed by homogenization. XRD analysis confirms single-phase characterization of the product and shows it has a grain size of 40 nm. The ZFC and FC magnetizations exhibit a large irreversibility with onset of about...

  • Noncollinear magnetism in substitutionally disordered face-centered-cubic FeMn. Schulthess, T.C.; Butler, W.H. // Journal of Applied Physics;4/15/1999 Part 2A of 2, Vol. 85 Issue 8, p4842 

    Studies the magnetic structure of iron-manganese using the Korringa-Kohn Rostocker multiple-scattering approach. Coherent potential approximation for arbitrary magnetic structures; Details on the experiment; Results.

  • Impact of spin-orbit coupling on the magnetism of Sr3MIrO6 (M = Ni, Co). Xuedong Ou; Hua Wu // Scientific Reports;4/11/2014, p1 

    Iridates are of current great interest for their entangled spin-orbital state and possibly exotic properties. In this work, using density functional calculations, we have demonstrated that the hexagonal spin-chain materials Sr3MIrO6 (M = Ni, Co) are an iridate system in which the spin-orbit...

  • Magnetic structure studies of ErMnO[sub 3]. Park, J.; Kong, U.; Choi, S.I.; Park, J.-G.; Lee, C.; Jo, W. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps802 

    ErMnO[sub 3] forms in a hexagonal structure with P6[sub 3]cm space group. Our neutron-diffraction studies from room temperature to 10 K show that ErMnO[sub 3] undergoes an antiferromagnetic transition at around 80 K, consistent with our bulk measurements. Magnetic group theoretical analysis and...

  • Physical origin of the incommensurate spin spiral structure in Mn3Si. Hortamani, M.; Sandratskii, L.; Zahn, P.; Mertig, I. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07E506 

    We report first-principles study of the magnetic structure of Mn3Si. The Mn atoms form two sublattices. One of them is (MnI) characterized by large atomic magnetic moments and the other one (MnII) possesses induced moments. It is shown that in agreement with experiment the magnetic ground state...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics