Room temperature magnetic transition in ternary neodymium cobalt germanium 1:2:2 type intermetallics

The series of rare earth (R)-3d transition metal (T)-semiconductor(S) with structural formula of RT 2 S 2 have received much attention due to their complicate low temperature magnetic properties such as metamagneticantiferromagnetic, pauli paramagnetic, commensurate-incommensurate magnetic phase transition1,2. However, the magnetisms of these magnetic phenomena are not very clear. In recent years, the complicate magnetic phase states at low temperature could be understood by the skyrmion effect3. A topological magnetism might be used to interpret these magnetic phenomena. In addition, the high temperature magnetic property and the magneto-transport should be an extensive study in RT S system.