期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 239, 期 1-3, 页码 243-245出版社
ELSEVIER
DOI: 10.1016/S0304-8853(01)00544-3
关键词
conductance quantization; nano-wire; break-junction; ferromagnetic materials
The conductance in ferromagnetic Ni nano-wire is quantized in units of 2e(2)/h in the absence of magnetic field, while the units switch to e(2)/h in the magnetic field. The fractional units of 0.7e(2)/h and 1.4e(2)/h with and without magnetic field appear under the application of high bias-voltage. The spin polarization and bias-voltage play an important role in the electric conduction. (C) 2002 Elsevier Science B.V. All rights reserved.
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