Single-electron transport in electrically tunable nanomagnets

被引：72

作者：

Fernandez-Rossier, J. ^{[1
]}

Aguado, Ramon

机构：

[1] Univ Alicante, Dept Fis Aplicada, San Vicente Del Raspeig, Spain

[2] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.98.106805

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study a single-electron transistor (SET) based upon a II-VI semiconductor quantum dot doped with a single-Mn ion. We present evidence that this system behaves like a quantum nanomagnet whose total spin and magnetic anisotropy depend dramatically both on the number of carriers and their orbital nature. Thereby, the magnetic properties of the nanomagnet can be controlled electrically. Conversely, the electrical properties of this SET depend on the quantum state of the Mn spin, giving rise to spin-dependent charging energies and hysteresis in the Coulomb blockade oscillations of the linear conductance.

引用

页数：4

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