We discuss domain walls from spontaneous breaking of Abelian discrete symmetries $Z_N$. A series different wall structures are predicted, depending on the symmetry and charge assignments scalars leading to (SSB). widely-existing type those separating degenerate vacua which adjacent in field space. denote these as adjacency walls. In case that $Z_N$ terms small compared with $U(1)$ terms, SSB ge...

Author(s): Hong, Zijian; Das, Sujit; Nelson, Christopher; Yadav, Ajay; Wu, Yongjun; Junquera, Javier; Chen, Long-Qing; Martin, Lane W; Ramesh, Ramamoorthy | Abstract: Controlling the domain formation in ferroelectric materials at nanoscale is a fertile ground to explore emergent phenomena and their technological prospects. For example, charged walls BiFeO3 ErMnO3 exhibit significantly enhanced ...