TY - JOUR KW - lattice constants KW - Silicon alloys KW - Antiferromagnetic properties of substances KW - Antiferromagnetics [A7550E] KW - Magnetic moments and susceptibility in magnetically ordered materials [A7530C] KW - chemical cell KW - Crystal atomic structure of alloys KW - Crystal structure of specific alloys [A6155H] KW - diffraction pattern KW - Iron alloys KW - low temperatures KW - magnetic moment KW - Magnetic moments KW - magnetic scattering KW - Magnetic structure KW - magnetically ordered Tm/sub 2/Fe/sub 3/Si/sub 5/ KW - Neutron diffraction examination of materials KW - neutron powder diffraction KW - noncollinear antiferromagnetic structure KW - space group P4/ m n c KW - Spin arrangements in magnetically ordered materials [A7525] KW - tetragonal crystal structure KW - Thulium alloys AU - A. Moodenbaugh AU - D. Cox AU - Cronin Vining AB -

Tm/sub 2/Fe/sub 3/Si/sub 5/ has been studied at low temperatures by neutron powder diffraction techniques. At T=1.5K the diffraction pattern is characteristic of a tetragonal crystal structure, space group P4/mnc (D/sub 4h//sup 6/; with a=10.332 AA and c=5.388 AA), similar to that of the prototype compound Sc/sub 2/Fe/sub 3/Si/sub 5/. Below T=1.2K magnetic scattering peaks develop, which can be indexed with the parameters of the chemical cell. A noncollinear antiferromagnetic structure is proposed which features ordering of Tm moments in the (110) set of directions. The magnetic moment of Tm is 6.5 mu /sub B/ at the lowest temperature attained, 0.35K. (17 References).

BT - Phys. Rev. B DA - 1985/// DO - 10.1103/PhysRevB.32.3103 IS - 5 LA - eng N2 -

Tm/sub 2/Fe/sub 3/Si/sub 5/ has been studied at low temperatures by neutron powder diffraction techniques. At T=1.5K the diffraction pattern is characteristic of a tetragonal crystal structure, space group P4/mnc (D/sub 4h//sup 6/; with a=10.332 AA and c=5.388 AA), similar to that of the prototype compound Sc/sub 2/Fe/sub 3/Si/sub 5/. Below T=1.2K magnetic scattering peaks develop, which can be indexed with the parameters of the chemical cell. A noncollinear antiferromagnetic structure is proposed which features ordering of Tm moments in the (110) set of directions. The magnetic moment of Tm is 6.5 mu /sub B/ at the lowest temperature attained, 0.35K. (17 References).

PY - 1985 EP - 6 EP - 3103+ T2 - Phys. Rev. B TI - Neutron diffraction study of magnetically ordered Tm2Fe3Si5 UR - http://cvining.com/system/files/articles/vining/Moodenbaugh-PRB-1985.pdf VL - 32 ER -