TY - JOUR
T1 - Bipolar Magnetic Materials Based on 2D Ni[TCNE] Metal–Organic Coordination Networks
AU - Chen, Yu
AU - Liu, Junyi
AU - Sun, Qiang
AU - Kawazoe, Yoshiyuki
AU - Jena, Puru
N1 - Funding Information:
Q.S. acknowledges the grants from the National Natural Science Foundation of China (21573008, 21773003), and from the Ministry of Science and Technology of China (2017YFA0204902). P.J. acknowledges by grant from the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (No. DE-FG02-96ER45579).
Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/2
Y1 - 2018/2
N2 - Bipolar magnetic materials can produce alternative spin currents with 100% spin-polarization by flexible electrical control, showing great potentials in spintronics. Using first-principles calculations, it is demonstrated that the 2D metal–organic coordination networks, consisting of tetracyanoethylene (TCNE) molecules and Ni atoms, labeled Ni[TCNE], are bipolar magnetic materials showing rich properties: one isomer named a-Ni[TCNE] is a bipolar magnetic semiconductor (BMS), and another isomer, p-Ni[TCNE], behaves like a bipolar magnetic metal (BMM). The proper charge transfer leads to the localized spins at the Ni atoms and delocalized spin magnetic moments on the whole structure and the coupling between the localized spins and the itinerant spins is ferromagnetic. These traits of BMS and BMM in Ni[TCNE] networks add additional features to the family of 2D bipolar magnetic materials. This study paves the way for the design of organic based 2D bipolar magnetic spintronics materials.
AB - Bipolar magnetic materials can produce alternative spin currents with 100% spin-polarization by flexible electrical control, showing great potentials in spintronics. Using first-principles calculations, it is demonstrated that the 2D metal–organic coordination networks, consisting of tetracyanoethylene (TCNE) molecules and Ni atoms, labeled Ni[TCNE], are bipolar magnetic materials showing rich properties: one isomer named a-Ni[TCNE] is a bipolar magnetic semiconductor (BMS), and another isomer, p-Ni[TCNE], behaves like a bipolar magnetic metal (BMM). The proper charge transfer leads to the localized spins at the Ni atoms and delocalized spin magnetic moments on the whole structure and the coupling between the localized spins and the itinerant spins is ferromagnetic. These traits of BMS and BMM in Ni[TCNE] networks add additional features to the family of 2D bipolar magnetic materials. This study paves the way for the design of organic based 2D bipolar magnetic spintronics materials.
KW - 2D metal–organic coordination networks
KW - bipolar magnetic materials
KW - ferromagnetism
KW - metallicity
KW - spintronics
UR - http://www.scopus.com/inward/record.url?scp=85041951628&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041951628&partnerID=8YFLogxK
U2 - 10.1002/aelm.201700323
DO - 10.1002/aelm.201700323
M3 - Article
AN - SCOPUS:85041951628
SN - 2199-160X
VL - 4
JO - Advanced Electronic Materials
JF - Advanced Electronic Materials
IS - 2
M1 - 1700323
ER -