TY  - JOUR
AU  - Lounis, S.
AU  - Dederichs, P. H.
AU  - Blügel, S.
TI  - Magnetism of Nanowires Driven by Novel Even-Odd Effects
JO  - Physical review letters
VL  - 101
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-467
SP  - 107204
PY  - 2008
N1  - We thank Dr. Mavropoulos for fruitful discussions. This work was supported by the ESF EUROCORES Programme SONS under Contract No. ERAS-CT-2003-980409 and the DFG Priority Programme SPP1153.
AB  - The parity of the number of atoms in finite antiferromagnetic nanowires deposited on ferromagnets is shown to be a crucial quantity determining their magnetic ground state. Relating results of the full-potential Korringa-Kohn-Rostoker method for noncollinear magnetism from first principles to a Heisenberg model, we show that the magnetic structure changes dramatically across the entire nanowire if one single atom is added to it. Infinite and finite even-numbered nanochains exhibit always noncollinear magnetism, while odd-numbered wires lead under given conditions to a collinear ferrimagnetic ground state. This extremely nonlocal effect occurs only for nanosized wires.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000258975100060
DO  - DOI:10.1103/PhysRevLett.101.107204
UR  - https://juser.fz-juelich.de/record/467
ER  -