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Pregled bibliografske jedinice broj: 1172182

Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate


Hameed, S.; Pelc, D.; Anderson, Z. W.; Klein, A.; Spieker, R. J.; Yue, L.; Das, B.; Ramberger, J.; Lukas, M.; Liu, Y. et al.
Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate // Nature Materials, 21 (2021), 1; 54-61 doi:10.1038/s41563-021-01102-3 (međunarodna recenzija, članak, znanstveni)


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Naslov
Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate

Autori
Hameed, S. ; Pelc, D. ; Anderson, Z. W. ; Klein, A. ; Spieker, R. J. ; Yue, L. ; Das, B. ; Ramberger, J. ; Lukas, M. ; Liu, Y. ; Krogstad, M. J. ; Osborn, R. ; Li, Y. ; Leighton, C. ; Fernandes, R. M. ; Greven, M.

Izvornik
Nature Materials (1476-1122) 21 (2021), 1; 54-61

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Quantum materials, superconductivity, plastic deformation, ferroelectric, quantum criticality

Sažetak
The properties of quantum materials are commonly tuned using experimental variables such as pressure, magnetic field and doping. Here we explore a different approach using irreversible, plastic deformation of single crystals. We show that compressive plastic deformation induces low- dimensional superconductivity well above the superconducting transition temperature (Tc) of undeformed SrTiO3, with evidence of possible superconducting correlations at temperatures two orders of magnitude above the bulk Tc. The enhanced superconductivity is correlated with the appearance of self-organized dislocation structures, as revealed by diffuse neutron and X- ray scattering. We also observe deformation- induced signatures of quantum-critical ferroelectric fluctuations and inhomogeneous ferroelectric order using Raman scattering. Our results suggest that strain surrounding the self- organized dislocation structures induces local ferroelectricity and quantum-critical dynamics that strongly influence Tc, consistent with a theory of superconductivity enhanced by soft polar fluctuations. Our results demonstrate the potential of plastic deformation and dislocation engineering for the manipulation of electronic properties of quantum materials.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
HRZZ-UIP-2020-02-9494 - Kolektivna pobuđenja i lokalna struktura u nekonvencionalnim supravodičima (CELUS) (Pelc, Damjan, HRZZ - 2020-02) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb,
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Damjan Pelc (autor)

Avatar Url Marin Lukas (autor)

Poveznice na cjeloviti tekst rada:

doi

Citiraj ovu publikaciju:

Hameed, S.; Pelc, D.; Anderson, Z. W.; Klein, A.; Spieker, R. J.; Yue, L.; Das, B.; Ramberger, J.; Lukas, M.; Liu, Y. et al.
Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate // Nature Materials, 21 (2021), 1; 54-61 doi:10.1038/s41563-021-01102-3 (međunarodna recenzija, članak, znanstveni)
Hameed, S., Pelc, D., Anderson, Z., Klein, A., Spieker, R., Yue, L., Das, B., Ramberger, J., Lukas, M. & Liu, Y. (2021) Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate. Nature Materials, 21 (1), 54-61 doi:10.1038/s41563-021-01102-3.
@article{article, author = {Hameed, S. and Pelc, D. and Anderson, Z. W. and Klein, A. and Spieker, R. J. and Yue, L. and Das, B. and Ramberger, J. and Lukas, M. and Liu, Y. and Krogstad, M. J. and Osborn, R. and Li, Y. and Leighton, C. and Fernandes, R. M. and Greven, M.}, year = {2021}, pages = {54-61}, DOI = {10.1038/s41563-021-01102-3}, keywords = {Quantum materials, superconductivity, plastic deformation, ferroelectric, quantum criticality}, journal = {Nature Materials}, doi = {10.1038/s41563-021-01102-3}, volume = {21}, number = {1}, issn = {1476-1122}, title = {Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate}, keyword = {Quantum materials, superconductivity, plastic deformation, ferroelectric, quantum criticality} }
@article{article, author = {Hameed, S. and Pelc, D. and Anderson, Z. W. and Klein, A. and Spieker, R. J. and Yue, L. and Das, B. and Ramberger, J. and Lukas, M. and Liu, Y. and Krogstad, M. J. and Osborn, R. and Li, Y. and Leighton, C. and Fernandes, R. M. and Greven, M.}, year = {2021}, pages = {54-61}, DOI = {10.1038/s41563-021-01102-3}, keywords = {Quantum materials, superconductivity, plastic deformation, ferroelectric, quantum criticality}, journal = {Nature Materials}, doi = {10.1038/s41563-021-01102-3}, volume = {21}, number = {1}, issn = {1476-1122}, title = {Enhanced superconductivity and ferroelectric quantum criticality in plastically deformed strontium titanate}, keyword = {Quantum materials, superconductivity, plastic deformation, ferroelectric, quantum criticality} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Citati:





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