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Emergent Magnetism with Continuous Control in the Ultrahigh-Conductivity Layered Oxide PdCoO2
Abstract
The current challenge to realizing continuously tunable magnetism lies in our inability to systematically change properties, such as valence, spin, and orbital degrees of freedom, as well as crystallographic geometry. Here, we demonstrate that ferromagnetism can be externally turned on with the application of low-energy helium implantation and can be subsequently erased and returned to the pristine state via annealing. We find that this high level of continuous control is made possible by targeting magnetic metastability in the ultrahigh-conductivity, nonmagnetic layered oxide PdCoO2 where local lattice distortions generated by helium implantation induce the emergence of a net moment on the surrounding transition metal octahedral sites. These highly localized moments communicate through the itinerant metal states, which trigger the onset of percolated long-range ferromagnetism. The ability to continuously tune competing interactions enables tailoring precise magnetic and magnetotransport responses in an ultrahigh-conductivity film and will be critical to applications across spintronics.
- Authors:
-
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- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- (Gani) [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- State University of New Jersey, Piscataway, NJ (United States)
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Paul Scherrer Institute (PSI), Villigen (Switzerland)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1997712
- Grant/Contract Number:
- AC05-00OR22725; AC02-06CH11357; AC02-05CH11231; DMR2004125; 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 23; Journal Issue: 16; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; delafossite; molecular beam epitaxy; magnetism; implantation; anomalous Hall effect; spintronics
Citation Formats
Brahlek, Matthew, Mazza, Alessandro R., Annaberdiyev, Abdulgani, Chilcote, Michael, Rimal, Gaurab, Halász, Gábor B., Pham, Anh D., Pai, Yun-Yi, Krogel, Jaron T., Lapano, Jason, Lawrie, Benjamin J., Eres, Gyula, McChesney, Jessica, Prokscha, Thomas, Suter, Andreas, Oh, Seongshik, Freeland, John W., Cao, Yue, Gardner, Jason S., Salman, Zaher, Moore, Robert G., Ganesh, Panchapakesan, and Ward, Thomas Zac. Emergent Magnetism with Continuous Control in the Ultrahigh-Conductivity Layered Oxide PdCoO2. United States: N. p., 2023.
Web. doi:10.1021/acs.nanolett.3c01065.
Brahlek, Matthew, Mazza, Alessandro R., Annaberdiyev, Abdulgani, Chilcote, Michael, Rimal, Gaurab, Halász, Gábor B., Pham, Anh D., Pai, Yun-Yi, Krogel, Jaron T., Lapano, Jason, Lawrie, Benjamin J., Eres, Gyula, McChesney, Jessica, Prokscha, Thomas, Suter, Andreas, Oh, Seongshik, Freeland, John W., Cao, Yue, Gardner, Jason S., Salman, Zaher, Moore, Robert G., Ganesh, Panchapakesan, & Ward, Thomas Zac. Emergent Magnetism with Continuous Control in the Ultrahigh-Conductivity Layered Oxide PdCoO2. United States. https://doi.org/10.1021/acs.nanolett.3c01065
Brahlek, Matthew, Mazza, Alessandro R., Annaberdiyev, Abdulgani, Chilcote, Michael, Rimal, Gaurab, Halász, Gábor B., Pham, Anh D., Pai, Yun-Yi, Krogel, Jaron T., Lapano, Jason, Lawrie, Benjamin J., Eres, Gyula, McChesney, Jessica, Prokscha, Thomas, Suter, Andreas, Oh, Seongshik, Freeland, John W., Cao, Yue, Gardner, Jason S., Salman, Zaher, Moore, Robert G., Ganesh, Panchapakesan, and Ward, Thomas Zac. Tue .
"Emergent Magnetism with Continuous Control in the Ultrahigh-Conductivity Layered Oxide PdCoO2". United States. https://doi.org/10.1021/acs.nanolett.3c01065.
@article{osti_1997712,
title = {Emergent Magnetism with Continuous Control in the Ultrahigh-Conductivity Layered Oxide PdCoO2},
author = {Brahlek, Matthew and Mazza, Alessandro R. and Annaberdiyev, Abdulgani and Chilcote, Michael and Rimal, Gaurab and Halász, Gábor B. and Pham, Anh D. and Pai, Yun-Yi and Krogel, Jaron T. and Lapano, Jason and Lawrie, Benjamin J. and Eres, Gyula and McChesney, Jessica and Prokscha, Thomas and Suter, Andreas and Oh, Seongshik and Freeland, John W. and Cao, Yue and Gardner, Jason S. and Salman, Zaher and Moore, Robert G. and Ganesh, Panchapakesan and Ward, Thomas Zac},
abstractNote = {The current challenge to realizing continuously tunable magnetism lies in our inability to systematically change properties, such as valence, spin, and orbital degrees of freedom, as well as crystallographic geometry. Here, we demonstrate that ferromagnetism can be externally turned on with the application of low-energy helium implantation and can be subsequently erased and returned to the pristine state via annealing. We find that this high level of continuous control is made possible by targeting magnetic metastability in the ultrahigh-conductivity, nonmagnetic layered oxide PdCoO2 where local lattice distortions generated by helium implantation induce the emergence of a net moment on the surrounding transition metal octahedral sites. These highly localized moments communicate through the itinerant metal states, which trigger the onset of percolated long-range ferromagnetism. The ability to continuously tune competing interactions enables tailoring precise magnetic and magnetotransport responses in an ultrahigh-conductivity film and will be critical to applications across spintronics.},
doi = {10.1021/acs.nanolett.3c01065},
journal = {Nano Letters},
number = 16,
volume = 23,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 2023},
month = {Tue Aug 01 00:00:00 EDT 2023}
}
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