Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Ramakrishnan, T V"'
In this paper, we present a theoretical framework for understanding the Extremely Correlated Fermi Liquid (ECFL) phenomenon within the $U=\infty$ Hubbard model. Our approach involves deriving equations of motion for the single-particle Green's functi
Externí odkaz:
http://arxiv.org/abs/2403.07620
The highly convergent form of superfluid density in disordered conventional superconductors available in the literature and independently obtained by us following the approach of an earlier paper [Phys. Rev. B $\bm{102}$, 024514 (2020)] has been refo
Externí odkaz:
http://arxiv.org/abs/2101.06697
Publikováno v:
Phys. Rev. B 102, 024514 (2020)
Recent experiments on disordered superconductors find that the superfluid density $n_s(T)$ decreases dramatically and characteristically with disorder, differently from what is expected for a mean order parameter field or BCS, amplitude only, picture
Externí odkaz:
http://arxiv.org/abs/2003.14354
Autor:
Aamir, Md. Ali, Karnatak, Paritosh, Jayaraman, Aditya, Sai, T. Phanindra, Ramakrishnan, T. V., Sensarma, Rajdeep, Ghosh, Arindam
Publikováno v:
Physical Review Letters, 121(13), 136806 (2018)
The combination of field tunable bandgap, topological edge states, and valleys in the band structure, makes insulating bilayer graphene a unique localized system, where the scaling laws of dimensionless conductance g remain largely unexplored. Here w
Externí odkaz:
http://arxiv.org/abs/1902.07428
Publikováno v:
New J.Phys.19, 073009 (2017)
We study the Nernst effect in fluctuating superconductors by calculating the transport coefficient $\alpha_{xy}$ in a phenomenological model where relative importance of phase and amplitude fluctuations of the order parameter is tuned continuously to
Externí odkaz:
http://arxiv.org/abs/1701.08091
Autor:
Ramakrishnan, T. V.
Publikováno v:
Current Science, 2020 Jun . 118(12), 2002-2003.
Externí odkaz:
https://www.jstor.org/stable/27226483
Publikováno v:
Current Science, 2020 May . 118(10), 1624-1627.
Externí odkaz:
https://www.jstor.org/stable/27138793
Autor:
Gupta, Satyendra Nath, Sriluckshmy, P. V., Balodhi, Ashiwini, Muthu, D. V. S., Hassan, S. R., Singh, Yogesh, Ramakrishnan, T. V., Sood, A. K.
Publikováno v:
Phys. Rev. B 94, 155153, 2016
Combining Raman scattering measurements with mean field calculations of the Raman response we show that Kitaev-like magnetic exchange is dominant in the hyperkagome iridate Na$_4$Ir$_3$O$_8$. In the measurements we observe a broad Raman band at $\sim
Externí odkaz:
http://arxiv.org/abs/1606.07938
Publikováno v:
Phys. Rev. B 93, 235426 (2016)
We analyze the nature of the single particle states, away from the Dirac point, in the presence of long-range charge impurities in a tight-binding model for electrons on a two-dimensional honeycomb lattice which is of direct relevance for graphene. F
Externí odkaz:
http://arxiv.org/abs/1511.07646
Autor:
Gupta, Satyendra Nath, Sriluckshmy, P. V., Mehlawat, Kavita, Balodhi, Ashiwini, Mishra, Dileep K, Muthu, D. V. S., Hassan, S. R., Singh, Yogesh, Ramakrishnan, T. V., Sood, A. K.
Publikováno v:
EPL, 114 (2016) 47004
Inelastic light scattering studies on single crystals of (Na$_{1-x}$Li$_x$)$_2$IrO$_3$ ($x = 0, 0.05$ and $0.15$) show a polarization independent broad band at $\sim $~2750 cm$^{-1}$ with a large band-width $\sim 1800$~cm$^{-1}$. For Na$_2$IrO$_3$ th
Externí odkaz:
http://arxiv.org/abs/1408.2239