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Pregled bibliografske jedinice broj: 946423

Topological instability of two-dimensional conductors


Kadigrobov, M. Anatoly; Bjeliš, Aleksa; Radić, Danko
Topological instability of two-dimensional conductors // Physical review. B., 97 (2018), 23; 235439-235439-7 doi:10.1103/PhysRevB.97.235439 (međunarodna recenzija, članak, znanstveni)


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Naslov
Topological instability of two-dimensional conductors

Autori
Kadigrobov, M. Anatoly ; Bjeliš, Aleksa ; Radić, Danko

Izvornik
Physical review. B. (2469-9950) 97 (2018), 23; 235439-235439-7

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

Ključne riječi
quantum phase transition, Fermi surface topological reconstruction, charge density wave

Sažetak
In the present paper we propose a mechanism of the structural instability with a periodic charge ordering in two-dimensional isotropic conductors with a closed Fermi surface which completely excludes the conventional nesting mechanism. We show that the structural instability in such conductors may arise as a topological reconstruction under which the initially closed Fermi surface is transformed into an open one. We have found that the order parameter of the charge ordering ground state may exceed one hundredth of the Fermi energy. Furthermore, this charge ordering is a quantum phase transition with respect to the dimensionless coupling constant λ related to the mechanism that drives the band reconstruction (e.g., electron-phonon coupling), with the critical value given by λc=1/(1+2/π). Preliminary estimations show that the suggested mechanism can be the origin of density waves observed in such materials as high-Tc cuprates or graphite intercalates.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
QuantixLie-KK.01.1.1.01.0004
HRZZ-IP-2016-06-2289 - Kolektivni efekti, tunelirajući i topološki transport u novim nanospojevima (C3TiNN) (Radić, Danko, HRZZ - 2016-06) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Danko Radić (autor)

Avatar Url Aleksa Bjeliš (autor)

Citiraj ovu publikaciju

Kadigrobov, M. Anatoly; Bjeliš, Aleksa; Radić, Danko
Topological instability of two-dimensional conductors // Physical review. B., 97 (2018), 23; 235439-235439-7 doi:10.1103/PhysRevB.97.235439 (međunarodna recenzija, članak, znanstveni)
Kadigrobov, M., Bjeliš, A. & Radić, D. (2018) Topological instability of two-dimensional conductors. Physical review. B., 97 (23), 235439-235439-7 doi:10.1103/PhysRevB.97.235439.
@article{article, year = {2018}, pages = {235439-235439-7}, DOI = {10.1103/PhysRevB.97.235439}, keywords = {quantum phase transition, Fermi surface topological reconstruction, charge density wave}, journal = {Physical review. B.}, doi = {10.1103/PhysRevB.97.235439}, volume = {97}, number = {23}, issn = {2469-9950}, title = {Topological instability of two-dimensional conductors}, keyword = {quantum phase transition, Fermi surface topological reconstruction, charge density wave} }
@article{article, year = {2018}, pages = {235439-235439-7}, DOI = {10.1103/PhysRevB.97.235439}, keywords = {quantum phase transition, Fermi surface topological reconstruction, charge density wave}, journal = {Physical review. B.}, doi = {10.1103/PhysRevB.97.235439}, volume = {97}, number = {23}, issn = {2469-9950}, title = {Topological instability of two-dimensional conductors}, keyword = {quantum phase transition, Fermi surface topological reconstruction, charge density wave} }

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


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