Tailoring magnetoresistance through rotating Ni particles

Article

关键词: KOHN-ROSTOKER METHOD;    SINGLE-ATOM CONTACT;    BALLISTIC MAGNETORESISTANCE;    CONDUCTANCE QUANTIZATION;    NANOWIRES;    NANOCONTACTS;    TRANSPORT;   

DOI  :  10.1103/PhysRevB.84.054418

来源: SCIE

【 摘 要 】

We present ab initio studies based on density functional theory within the local spin density approximation for different Ni nanocontacts and show changes in the conductance of such constrictions due to atomic rearrangements in the contact. In particular we consider an Ni particle and show that the magnetoresistance can change from a few to 50% and can even reverse sign as a function of the contact area formed between the particle and the leads.

【 授权许可】

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