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Experimentally observation of borophene nanoribbons (BNRs) motivated us tocarry out a comprehensive investigation on BNRs, decomposed from {\chi}_3sheet, using density functional theory. Our results show that the stability andalso the electrical and magnetic properties of the ribbons are stronglydependent on the edge configuration. We have studied two categories of ribbons:XBNRs, and YBNRs. The first one is a nonmagnetic metal with armchair shapeedge, while YBNRs can be magnetic or nonmagnetic related to the edge shape.YBNRs have four different edge types and we show that two of them are magnetic( a- and b-type edges) but others are nonmagnetic (c- and d-type edges). Thereare 10 distinct configurations by arranging the different edges of YBNRs. 10percent of YBNRs are polarized asymmetrically at the edges leading to the lossof degeneracy of spin-up and spin-down bands in the antiferromagneticconfiguration. 40 percent of YBNRs have one magnetic edge which can be apromising candidate for spintronic applications due to the separation of thespin in the real space in addition to the energy space. Electronic transmissionproperties of the ribbons are also studied and found that transmission channelsare suppressed in edges of XBNRs due to electron localization.

Freestanding {\chi}_3-Borophene Nanoribbons: A Density Functional Theory Investigation