Magnetic moments, exchange coupling, and crossover temperatures of Co clusters on Pt(111) and Au(111)
Magnetic moments, exchange coupling, and crossover temperatures of Co clusters on Pt(111) and Au(111)
复制标题
Pt(111) 和 Au(111) 上 Co 团簇的磁矩、交换耦合和交叉温度
DOI:
10.1088/0953-8984/19/9/096203
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
H. Ebert
中科院分区:
文献类型:
--
作者:
O. Sipr;S. Bornemann;J. Minar;S. Polesya;V. Popescu;A. Simunek;H. Ebert
The influence of cluster size and of cluster–substrate interaction on the magnetic properties of Co clusters of 1–10 atoms on Pt (111) and Au (111) is studied by fully relativistic ab initio calculations. The focus is on systematic trends of the spin and orbital magnetic moments, the exchange coupling, and the crossover temperature. The spin magnetic moments of Co clusters are larger for the Pt substrate than for the Au substrate, while the reverse is true for the orbital magnetic moments. The local magnetic moments of Co atoms generally increase if the number of Co neighbours decreases. The exchange coupling constants J ij depend on the cluster size and on the location of respective atoms. The crossover temperature increases monotonically with cluster size and is larger for clusters on Pt than for clusters on Au.
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DOI:
10.1007/s00339-005-3359-1
发表时间:
2006
期刊:
Applied Physics A
影响因子:
--
作者:
J. Minár;S. Bornemann;O. Šipr;S. Polesya;H. Ebert
通讯作者:
J. Minár;S. Bornemann;O. Šipr;S. Polesya;H. Ebert
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. Gusso
通讯作者:
M. Gusso
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
R. Nogueira;H. Petrilli
通讯作者:
H. Petrilli
影响因子:
3.7
作者:
Edmonds, KW;Binns, C;Brookes, NB
通讯作者:
Brookes, NB
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
E. Martínez;R. Longo;R. Robles;A. Vega;L. J. Gallego
通讯作者:
L. J. Gallego