Enhanced room temperature multiferroic behaviour of Ni-doped Na0.5Bi0.5TiO3 ceramics. - Goel, Rahul; Syal, Rajat; Sharma, Nandini; Dhiman, Shobhna; Singh, Arun Kumar; Garg, Ashish; Kumar, Sanjeev (Journal of Materials Science: Materials in Electronics, 2021)