R
Rajesh Narayanan
Researcher at Indian Institute of Technology Madras
Publications - 49
Citations - 630
Rajesh Narayanan is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Quantum phase transition & Phase transition. The author has an hindex of 15, co-authored 47 publications receiving 549 citations. Previous affiliations of Rajesh Narayanan include Asia Pacific Center for Theoretical Physics & University of Hong Kong.
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Strong enhancement of superconducting T(c) in ferromagnetic phases.
TL;DR: In this article, it was shown that the critical temperature for spin-triplet, $p$-wave superconductivity mediated by spin fluctuations is generically higher in a Heisenberg ferromagnetic phase than in a paramagnetic one, due to the coupling of the magnons to the longitudinal magnetic susceptibility.
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Intertwined nematic orders in a frustrated ferromagnet
Yasir Iqbal,Pratyay Ghosh,Rajesh Narayanan,Rajesh Narayanan,Brijesh Kumar,Johannes Reuther,Johannes Reuther,Ronny Thomale +7 more
TL;DR: In this paper, the authors investigated the quantum phases of the frustrated spin on the square lattice with ferromagnetic and antiferromagnetic interactions and found an intermediate paramagnetic phase located between classically ordered spin phases and incommensurate spiral phases.
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Fractional quantum Hall states in two-dimensional electron systems with anisotropic interactions
Hao Wang,Rajesh Narayanan,Rajesh Narayanan,Rajesh Narayanan,Xin Wan,Fu-Chun Zhang,Fu-Chun Zhang +6 more
TL;DR: In this article, the Coulomb interaction on a 1/3-filling fractional quantum Hall system was studied by using an exact diagonalization method on small systems in torus geometry.
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Density of states in graphene with vacancies: midgap power law and frozen multifractality.
Victor Häfner,J. Schindler,Norman Weik,T. Mayer,Srivatsan Balakrishnan,Rajesh Narayanan,Soumya Bera,Ferdinand Evers +7 more
TL;DR: Graphene with (effective) vacancy disorder is a physical representative of generic bipartite random hopping models that may also exhibit unconventional (strong-coupling) fixed points for certain kinds of randomly placed scatterers if these are strong enough.
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Elastic properties of graphene flakes: Boundary effects and lattice vibrations
TL;DR: In this paper, a phenomenological theory together with explicit calculations of the electronic ground-state energy, the surface contribution, and the elastic constants (Lam\'e parameters'' i.e., Poisson ratio, Young's modulus) of graphene flakes on the level of the density functional theory employing different standard functionals.