Ballistic magnetoresistance in different nanocontact configurations: a basis for future magnetoresistance sensors

@inproceedings{Garca2002BallisticMI,
  title={Ballistic magnetoresistance in different nanocontact configurations: a basis for future magnetoresistance sensors},
  author={Nicol{\'a}s Garc{\'i}a Garc{\'i}a and Manuel Mu{\~n}oz and Vladimir V. Osipov and Ekaterina Ponizovskaya and Guoguang Qian and I. G. Saveliev and Y. Zhao},
  year={2002}
}
Abstract We report ballistic magnetoresistance (BMR) values in magnetic nanocontacts for Ni, Co, and Fe. The samples range from atomic nanocontacts (smaller than 1 nm cross-section) to stable electrodeposited nanocontacts (up to 30 nm cross-section). The experiments are done at room temperature and up to 4 kOe applied field. We obtain values of stable BMR up to 700%. By manipulating the resistance and the contact shape electrochemically in situ we can have any desired value of BMR. We also… CONTINUE READING

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