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Unconventional charge order in a co-doped high-Tc superconductor

Pelc, Damjan; Vučković, Marija; Grafe, Hans-Joachim; Baek, Seung-Ho; Požek, Miroslav
Unconventional charge order in a co-doped high-Tc superconductor // Nature Communications, 7 (2016), 12775-1 doi:10.1038/ncomms12775 (međunarodna recenzija, članak, znanstveni)

Unconventional charge order in a co-doped high-Tc superconductor

Pelc, Damjan ; Vučković, Marija ; Grafe, Hans-Joachim ; Baek, Seung-Ho ; Požek, Miroslav

Nature Communications (2041-1723) 7 (2016); 12775-1

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

Ključne riječi
High temperature superconductivity ; charge order ; stripes ; nematic phase

Charge-stripe order has recently been established as an important aspect of cuprate high-Tc superconductors. However, owing to the complex interplay between competing phases and the influence of disorder, it is unclear how it emerges from the parent high-temperature state. Here we report on the discovery of an unconventional ordered phase between charge-stripe order and (pseudogapped) metal in the cuprate La1.8-xEu0.2SrxCuO4. We use three complementary experiments—nuclear quadrupole resonance, nonlinear conductivity and specific heat—to demonstrate that the order appears through a sharp phase transition and exists in a dome-shaped region of the phase diagram. Our results imply that the new phase is a state, which preserves translational symmetry: a charge nematic. We thus resolve the process of charge-stripe development in cuprates, show that this nematic phase is distinct from high-temperature pseudogap and establish a link with other strongly correlated electronic materials with prominent nematic order.

Izvorni jezik

Znanstvena područja


Projekt / tema
HRZZ-IP-2013-11-2729 - Lokalna proba i mezoskopska dinamika u novim fazama jako koreliranih elektronskih sustava (Miroslav Požek, )

Prirodoslovno-matematički fakultet, Zagreb

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