The magnetic susceptibility of Ho2Mn2O7 With a spontaneous rise below about 40 K and a paramagnetic Curie temperature of +39 K suggests a ferromagnetic ordering. Indeed neutron diffraction profiles show strongly enhanced Bragg peaks with a temperature dependence which indicates an apparent T-c approximate to 35 K. Nonetheless, the magnetic diffraction pattern is not consistent with a collinear ferro or ferrimagnetic ordering of the Ho3+ and Mn4+ sublattices. Furthermore, specific heat and small angle neutron scattering (SANS) show features which are also incompatible with conventional long-range order. (C) 1996 American Institute of Physics.
|Journal||Journal of Applied Physics|
|Publication status||Published - 1996|
|Event||40th Annual Conference on Magnetism and Magnetic Materials - Philadelphia, (PA), United States|
Duration: 6 Nov 1995 → 9 Nov 1995
Conference number: 40
|Conference||40th Annual Conference on Magnetism and Magnetic Materials|
|Period||06/11/1995 → 09/11/1995|