TY - JOUR
T1 - Transition-metal-molecular sandwich nanowires as magnetic on/off switch
AU - Wu, Menghao
AU - Cheng Zeng, Xiao
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2011/8/1
Y1 - 2011/8/1
N2 - Using first-principles calculation, we predict that upon electron injection, transition-metal-benzene [Cr(Bz)] and transition-metal-ferrocene [Mn(Cp)] sandwich nanowires (SWNs) can switch from nonmagnetic semiconductor to magnetic half metal. The mechanism underlying this charge-induced transition is clarified through Stoner criterion. A relationship between induced magnetic moment and injected charge density is investigated. We also find that the magnetic coupling within the [Ti(Bz)] SWN can be also tuned though charge injection. Upon either hole or electron injection, the ground state of [Ti(Bz)] SWN can be switched from antiferromagnetic to ferromagnetic. © 2011 American Institute of Physics.
AB - Using first-principles calculation, we predict that upon electron injection, transition-metal-benzene [Cr(Bz)] and transition-metal-ferrocene [Mn(Cp)] sandwich nanowires (SWNs) can switch from nonmagnetic semiconductor to magnetic half metal. The mechanism underlying this charge-induced transition is clarified through Stoner criterion. A relationship between induced magnetic moment and injected charge density is investigated. We also find that the magnetic coupling within the [Ti(Bz)] SWN can be also tuned though charge injection. Upon either hole or electron injection, the ground state of [Ti(Bz)] SWN can be switched from antiferromagnetic to ferromagnetic. © 2011 American Institute of Physics.
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U2 - 10.1063/1.3624458
DO - 10.1063/1.3624458
M3 - RGC 21 - Publication in refereed journal
SN - 0003-6951
VL - 99
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 5
M1 - 053121
ER -