Open AccessPosted Content
Translation Invariant Bipolarons and Charge Density Waves in High-Temperature Superconductors
Reads0
Chats0
TLDR
A correlation between the theories of superconductivity based on the concept of charge density waves (CDW) and the translation invariant (TI) bipolaron theory is established in this paper, where it is shown that CDW are originated from TI-bipolaron states in the pseudogap phase due to Kohn anomaly and form a pair density wave (PDW) for wave vectors corresponding to nesting.Abstract:
A correlation is established between the theories of superconductivity based on the concept of charge density waves (CDW) and the translation invariant (TI) bipolaron theory. It is shown that CDW are originated from TI-bipolaron states in the pseudogap phase due to Kohn anomaly and form a pair density wave (PDW) for wave vectors corresponding to nesting. Emerging in the pseudogap phase, CDW coexist with superconductivity at temperatures below that of superconducting transition while their wave amplitudes decrease as a Bose condensate is formed from TI-bipolarons, vanishing at zero temperature.read more
References
More filters
Book
Density waves in solids
TL;DR: In this article, the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves are discussed, as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.
Journal ArticleDOI
Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67
Johan Juul Chang,Johan Juul Chang,Elizabeth Blackburn,Alexander T. Holmes,Niels Bech Christensen,Jacob Larsen,Jacob Larsen,Joël Mesot,Joël Mesot,Ruixing Liang,Ruixing Liang,D. A. Bonn,D. A. Bonn,Walter Hardy,Walter Hardy,A. Watenphul,Martin v. Zimmermann,E. M. Forgan,Stephen M Hayden +18 more
TL;DR: X-ray diffraction experiments reveal that spatial charge ordering occurs in the pseudogap state of YBa2Cu3O6.67 as discussed by the authors, which competes with high-temperature superconductivity, and their relative strengths can be tuned using a magnetic field.
Journal ArticleDOI
Magnetic-field-induced charge-stripe order in the high-temperature superconductor YBa2Cu3Oy.
Tao Wu,Hadrien Mayaffre,Steffen Krämer,Mladen Horvatić,Claude Berthier,Walter Hardy,Walter Hardy,Ruixing Liang,Ruixing Liang,D. A. Bonn,D. A. Bonn,Marc-Henri Julien +11 more
TL;DR: Nuclear magnetic resonance measurements are reported showing that high magnetic fields actually induce charge order, without spin order, in the CuO2 planes of YBa2Cu3Oy, and it is argued that it is most probably the same 4a-periodic modulation as in stripe-ordered copper oxides.
Journal ArticleDOI
On the Theory of Superconductivity: The One-Dimensional Case
TL;DR: In this paper, the problem of free electrons interacting with lattice displacements is solved by a self-consistent method, and it is found that for a certain range of the interaction parameter a single sinusoidal lattice displacement is strongly excited in the lowest level of the system.