Size dependent magnetic moments and electric polarizabilities of free Tb, Ho, and Tm clusters

被引：13

作者：

Bowlan, J. ^{[1
]}

van Dijk, C. N. ^{[2
]}

Kirilyuk, A. ^{[2
]}

Liang, A. ^{[1
]}

Yin, S. ^{[1
]}

Rasing, Th. ^{[2
]}

de Heer, W. A. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[2] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期

关键词：

RARE-EARTH CLUSTERS; GADOLINIUM CLUSTERS; COBALT;

D O I：

10.1063/1.3350904

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Stern-Gerlach deflection measurements have been performed on rare earth clusters Tb(N), Ho(N), and Tm(N) (N <= 40) at cryogenic temperatures (T <= 77K). Tb(N) and Ho(N) share a common size dependence in their magnetic moments. They both exhibit common "magic number" sizes which show reduced net magnetic moments, similar to previous observations for Gd and Dy clusters. Tm(N) have smaller magnetic moments that do not differ significantly between cluster sizes. The reduced net magnetic moments are evidence that the atomic moments are canceled by a canted or antiferromagnetic alignment. Electric deflection experiments reveal that Tm(N) have electric dipole moments and show an enhanced response to an electric field compared to Tb(N) and Ho(N). (C) 2010 American Institute of Physics. [doi:10.1063/1.3350904]

引用

页数：3

共 16 条

[1] COLD CLUSTER FERROMAGNETISM [J].

BERTSCH, GF ;

YABANA, K .

PHYSICAL REVIEW A, 1994, 49 (03) :1930-1932

[2] MAGNETISM FROM THE ATOM TO THE BULK IN IRON, COBALT, AND NICKEL CLUSTERS [J].

BILLAS, IML ;

CHATELAIN, A ;

DEHEER, WA .

SCIENCE, 1994, 265 (5179) :1682-1684

[3] MAGNETISM OF FREE TRANSITION-METAL AND RARE-EARTH CLUSTERS [J].

BUCHER, JP ;

BLOOMFIELD, LA .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1993, 7 (04) :1079-1114

[4]

Cerovski VZ, 2000, EUR PHYS J D, V10, P119, DOI 10.1007/s100530050532

[5] MAGNETIC-PROPERTIES OF RARE-EARTH CLUSTERS [J].

COX, AJ ;

DOUGLASS, DC ;

LOUDERBACK, JG ;

SPENCER, AM ;

BLOOMFIELD, LA .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1993, 26 (1-4) :319-321

[6]

de Heer W. A., 2009, ARXIV09014810

[7] MAGNETIC-PROPERTIES OF FREE COBALT AND GADOLINIUM CLUSTERS [J].

DOUGLASS, DC ;

COX, AJ ;

BUCHER, JP ;

BLOOMFIELD, LA .

PHYSICAL REVIEW B, 1993, 47 (19) :12874-12889

[8] MAGIC NUMBERS IN THE MAGNETIC-PROPERTIES OF GADOLINIUM CLUSTERS [J].

DOUGLASS, DC ;

BUCHER, JP ;

BLOOMFIELD, LA .

PHYSICAL REVIEW LETTERS, 1992, 68 (11) :1774-1777

[9] High Curie temperature and possible canted magnetism in free Gd clusters [J].

Gerion, D ;

Hirt, A ;

Châtelain, A .

PHYSICAL REVIEW LETTERS, 1999, 83 (03) :532-535

[10]

Jensen J., 1991, Rare earth magnetism: structures and excitations

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