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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Boundary multifractality in critical one-dimensional systems with long-range hopping
A. Mildenberger,Arvind R. Subramaniam,Rajesh Narayanan,Ferdinand Evers,I. A. Gruzberg,Alexander D. Mirlin +5 more
TL;DR: In this article, the power-law random banded matrix (PRBM) model was studied analytically and numerically for the boundary multifractality of electronic wave functions and the boundary criticality is controlled by an additional parameter characterizing the hopping amplitudes of particles reflected by the boundary.
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Breathing chromium spinels: a showcase for a variety of pyrochlore Heisenberg Hamiltonians
Pratyay Ghosh,Yasir Iqbal,Tobias Müller,Ravi T. Ponnaganti,Ronny Thomale,Rajesh Narayanan,Johannes Reuther,Johannes Reuther,Michel J. P. Gingras,Michel J. P. Gingras,Harald Olaf Jeschke +10 more
TL;DR: In this article, the long-standing problem of the microscopic origin of the richly diverse phenomena in the chromium breathing pyrochlore material family was addressed by combining electronic structure and renormalization group techniques.
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Quantum critical behavior of itinerant ferromagnets
TL;DR: In this paper, it was shown that correlation effects in the underlying itinerant electron system lead to singularities in the order parameter field theory that result in an effective long-range interaction between the spin fluctuations.
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Infinite randomness and quantum Griffiths effects in a classical system: The randomly layered Heisenberg magnet
TL;DR: In this paper, the authors investigated the phase transition in a three-dimensional classical Heisenberg magnet with planar defects and showed that the critical point has exotic infinite-randomness character, accompanied by strong power-law Griffiths singularities.
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Influence of Rare Regions on Magnetic Quantum Phase Transitions
TL;DR: In this article, the effects of quenched disorder on the critical properties of itinerant quantum magnets are considered and the effect of local moments or instantons on these properties is investigated.