Publications by authors named "Yu-Hao Bai"

We study the magnetic properties of an epitaxial growth bilayer composed of ferromagnetic LaSrMnO (LSMO) and paramagnetic LaNiO (LNO) on SrTiO (STO) substrates. We find that the stack order of the bilayer heterostructure plays a key role in the interfacial coupling strength, and the coupling at the LSMO(top)/LNO(bottom) interface is much stronger than that at the LNO(top)/LSMO(bottom). Moreover, a strong spin glass state has been observed at the LSMO/LNO interface, which is further confirmed by two facts: first, that the dependence of the irreversible temperature on the cooling magnetic field follows the Almeida-Thouless line and, second, that the relaxation of the thermal remnant magnetization can be fitted by a stretched exponential function.

View Article and Find Full Text PDF