Orbital magnetism: Pros and cons for enhancing the cluster magnetism

被引:25
作者
Andriotis, AN
Menon, M
机构
[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
[2] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
[3] Univ Kentucky, Ctr Computat Sci, Lexington, KY 40506 USA
基金
美国国家航空航天局; 美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.93.026402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The discrepancy seen in the experimental and theoretical results on the magnetic moment of a small magnetic cluster has been attributed to the contribution arising from orbital magnetism. In this Letter we show that the magnetic states with large orbital magnetic moment are not always energetically favorable; they could, however, be realizable by coating the cluster or deposing it on appropriate substrates. More importantly, our work shows that the crucial factors that determine the cluster magnetism are found to be the intrinsic, and consequently, the extrinsic properties of the constituent atoms of the cluster.
引用
收藏
页码:026402 / 1
页数:4
相关论文
共 26 条
[11]   Induced V and reduced Co magnetic moments at the V/Co interface [J].
Huttel, Y ;
van der Laan, G ;
Johal, TK ;
Telling, ND ;
Bencok, P .
PHYSICAL REVIEW B, 2003, 68 (17)
[12]   Nickel clusters: The influence of adsorbates on magnetic moments [J].
Knickelbein, MB .
JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (22) :9703-9711
[13]   Magnetic moment and anisotropy in FenCom clusters [J].
Kortus, J ;
Baruah, T ;
Pederson, MR ;
Ashman, C ;
Khanna, SN .
APPLIED PHYSICS LETTERS, 2002, 80 (22) :4193-4195
[14]   Fully relativistic calculation of magnetic properties of Fe, Co, and Ni adclusters on Ag(100) [J].
Lazarovits, B ;
Szunyogh, L ;
Weinberger, P .
PHYSICAL REVIEW B, 2002, 65 (10) :1-8
[15]   Structure and stability of Ni-encapsulated Si nanotube [J].
Menon, M ;
Andriotis, AN ;
Froudakis, G .
NANO LETTERS, 2002, 2 (04) :301-304
[16]   Fe encapsulation by silicon clusters:: Ab initio electronic structure calculations -: art. no. 125407 [J].
Mpourmpakis, G ;
Froudakis, GE ;
Andriotis, AN ;
Menon, M .
PHYSICAL REVIEW B, 2003, 68 (12)
[17]   Understanding the structure of metal encapsulated Si cages and nanotubes:: Role of symmetry and d-band filling [J].
Mpourmpakis, G ;
Froudakis, GE ;
Andriotis, AN ;
Menon, M .
JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (14) :7498-7502
[18]   Strongly enhanced orbital moments and anisotropies of adatoms on the Ag(001) surface [J].
Nonas, B ;
Cabria, I ;
Zeller, R ;
Dederichs, PH ;
Huhne, T ;
Ebert, H .
PHYSICAL REVIEW LETTERS, 2001, 86 (10) :2146-2149
[19]   Fully unconstrained approach to noncollinear magnetism: Application to small Fe clusters [J].
Oda, T ;
Pasquarello, A ;
Car, R .
PHYSICAL REVIEW LETTERS, 1998, 80 (16) :3622-3625
[20]   Structure and magnetic properties of Fe-Ni clusters [J].
Rao, BK ;
de Debiaggi, SR ;
Jena, P .
PHYSICAL REVIEW B, 2001, 64 (02)