Electron transport through single Mn12 molecular magnets

被引：435

作者：

Heersche, H. B.

de Groot, Z.

Folk, J. A.

van der Zant, H. S. J.

Romeike, C.

Wegewijs, M. R.

Zobbi, L.

Barreca, D.

Tondello, E.

Cornia, A.

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[2] Rhein Westfal TH Aachen, Inst Theoret Phys A, D-52056 Aachen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.96.206801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report transport measurements through a single-molecule magnet, the Mn-12 derivative [Mn12O12(O2C-C6H4-SAc)(16)(H2O)(4)], in a single-molecule transistor geometry. Thiol groups connect the molecule to gold electrodes that are fabricated by electromigration. Striking observations are regions of complete current suppression and excitations of negative differential conductance on the energy scale of the anisotropy barrier of the molecule. Transport calculations, taking into account the high-spin ground state and magnetic excitations of the molecule, reveal a blocking mechanism of the current involving nondegenerate spin multiplets.

引用

页数：4

共 31 条

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