In:
Applied Physics Letters, AIP Publishing, Vol. 119, No. 19 ( 2021-11-08)
Abstract:
Nanographene exhibits manifold magnetic orders depending on its topology. The Clar's goblet, envisioned 50 years ago and synthesized recently, is an emblematic nanographene with an antiferromagnetic ground state induced by topological frustration. Inspired by the significant interest in the designer magnetic order of nanographene, we studied the tunable magnetic order in heteroatom-doped Clar's goblet. Interestingly, the antiferromagnetic to ferromagnetic transition is found in doped Clar's goblet by varying the doping positions. A large exchange-coupling strength of 77 meV is realized in a Clar's goblet doped by two nitrogen atoms. The spin directions and distribution at the connecting atoms determine the magnetic order and exchange-coupling strength. Moreover, the spin logic gate based on Clar's goblet can be converted from XOR (XAND) gate into OR (AND) gate by doping the outer units with nitrogen atoms. The heteroatom-doped nanographene with tunable magnetic order provides a platform for spintronic devices with controllable functions.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
2021
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0
Permalink
