English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Substrate-determined exchange interactions between an STM tip and an adatom

MPS-Authors

Tao,  Kun
Max Planck Institute of Microstructure Physics, Max Planck Society;

/persons/resource/persons260116

Stepanyuk,  V. S.
Max Planck Institute of Microstructure Physics, Max Planck Society;

External Resource

https://doi.org/10.1103/PhysRevB.97.224411
(Publisher version)

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Tao, K., Yu, Y., Zhang, W., Jia, C., Xue, D., & Stepanyuk, V. S. (2018). Substrate-determined exchange interactions between an STM tip and an adatom. Physical Review B, 97(22): 224411. doi:10.1103/PhysRevB.97.224411.


Cite as: https://hdl.handle.net/21.11116/0000-0009-2E72-4
Abstract
By performing ab initio calculations, we reveal an unexpected behavior of the exchange interactions between the Fe STM tip and the Fe adatom on Cu(001) and on a Cu2N monolayer on Cu(001) surfaces [denoted as Cu2N/Cu(001)]. A tip-adatom distance-dependent antiferromagnetic-ferromagnetic transition and antiferromagnetic exchange interactions between the tip and the adatom are found for these two junctions, respectively. We demonstrate that the different exchange interactions in these systems are determined by the competition between the tip-adatom and the adatom-substrate interactions. Based on transport calculations, we found that the spin polarization and magnetoresistance in the junction on the Cu(001) system and on the Cu2N/Cu(001) system depend on the tip-adatom distance.