Subhadip Nath

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Questions related from Subhadip Nath

What is the difference between spin-polarons and polarons related to cuprate superconductivity?

Spin polarons and polarons play significant role in High Tc cuprates. However both are not same. What are the difference between them? Can two polarons couple to form "Spin-bipolarons" as two...

07 August 2018 6,765 3 View

Are spin and charge gaps equivalent to supeeconducting gaps?

In studying Hubbard or t-J model in context of cuprates we come across spin and charge gap. are these gaps equivalent to superconducting gap as known for conventional superconductors?also another...

30 July 2017 5,044 3 View

What is the physical significance of POSITIVE and NEGATIVE values of NNN hopping strength t' for electron and hole doped cuprates and Hubbard model?

In various papers e.g. [N. P. Armitage, et. al., Rev. Mod. Phys. 82, 2421 (2010)] of various authors, it has been argued that the electron doped cuprates have positive values of t'(NNN hopping...

07 March 2016 1,880 1 View

Is Lattice deformation zero in absence of electron-phonon interaction?

Lattice deformation is an important parameter for calculation in strongly correlated systems with electron-phonon interaction (EPI). In Hubbard holstein model used for studying strongly correlated...

08 October 2014 4,168 5 View

Is there any hole doped cuprate superconductors that show superconductivity at hole doping n=0.5?

If it exists what about it's phase diagram?

08 April 2013 9,689 1 View