TY - JOUR
T1 - Two-step magnetic ordering into a canted state in ferrimagnetic monoclinic Mn3As2
AU - Karigerasi, Manohar H.
AU - Lam, Bao H.
AU - Avdeev, Maxim
AU - Shoemaker, Daniel P.
N1 - Funding Information:
This work was undertaken as part of the Illinois Materials Research Science and Engineering Center , supported by the National Science Foundation MRSEC program under NSF Award No. DMR-1720633 . The characterization was carried out in part in the Materials Research Laboratory Central Research Facilities, University of Illinois. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357 .
Funding Information:
This work was undertaken as part of the Illinois Materials Research Science and Engineering Center, supported by the National Science Foundation MRSEC program under NSF Award No. DMR-1720633. The characterization was carried out in part in the Materials Research Laboratory Central Research Facilities, University of Illinois. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
Publisher Copyright:
© 2020 Elsevier Inc.
PY - 2021/2
Y1 - 2021/2
N2 - We report the magnetic structure of monoclinic Mn3As2 at 3 K and 250 K using neutron powder diffraction measurements. From magnetometry data, the Curie temperature of Mn3As2 was confirmed to be around 270 K. Calorimetry analysis showed the presence of another transition at 225 K. At 270 K, Mn3As2 undergoes a k=0 ferrimagnetic ordering in the magnetic space group C2/m (#12.58) with Mn moments pointing along b. Below 225 K, there is a canting of Mn moments in the ac plane which produces a multi-k non-collinear magnetic structure in space group C2/c (#15.85). The components of Mn moments along b follow k=0 ordering and the components along a and c have [Formula presented] propagation vector. The change in the magnetic ground state with temperature provides a deeper insight into the factors that govern magnetic ordering in Mn–As compounds.
AB - We report the magnetic structure of monoclinic Mn3As2 at 3 K and 250 K using neutron powder diffraction measurements. From magnetometry data, the Curie temperature of Mn3As2 was confirmed to be around 270 K. Calorimetry analysis showed the presence of another transition at 225 K. At 270 K, Mn3As2 undergoes a k=0 ferrimagnetic ordering in the magnetic space group C2/m (#12.58) with Mn moments pointing along b. Below 225 K, there is a canting of Mn moments in the ac plane which produces a multi-k non-collinear magnetic structure in space group C2/c (#15.85). The components of Mn moments along b follow k=0 ordering and the components along a and c have [Formula presented] propagation vector. The change in the magnetic ground state with temperature provides a deeper insight into the factors that govern magnetic ordering in Mn–As compounds.
KW - Geometric frustration
KW - Magnetic structure refinement
KW - Magnetocrystalline anisotropy
KW - Metallic ferrimagnet
KW - Neutron diffraction
KW - Non-collinear magnetic ordering
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U2 - 10.1016/j.jssc.2020.121901
DO - 10.1016/j.jssc.2020.121901
M3 - Article
AN - SCOPUS:85098460714
SN - 0022-4596
VL - 294
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
M1 - 121901
ER -