Tata Institute of Fundamental Research

output

19912026

most citedSciPy 1.0--Fundamental Algorithms for Scientific Computing in Python

40.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing cond-mat.str-elShow all

382 papers · 1 filter

cond-mat.str-el2026

Tunable Chaos in the Finite Mean SYK Model

Arkaprava Mukherjee, Sumilan Banerjee, Sandip P. Trivedi +1

The complex Sachdev-Ye-Kitaev (SYK) model, featuring fermions with all-to-all interactions, serves as a dual paradigm for understanding non-Fermi liquid behavior and the holographi…

cond-mat.str-el2025

Topological phases of bosons with local parity coupling on a dimerized lattice

Ashirbad Padhan, Harsh Nigam

Symmetry-protected topological (SPT) phases in interacting bosonic systems have been widely explored, with many realizations emerging from the interplay of interactions, lattice ge…

cond-mat.str-el2025

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

Fan Zhang, Nisheeta Desai, Wenan Guo +1

We study the $T = 0$ phase diagrams of models of bilayers of $S = 1/2$ square lattices antiferromagnets with SU(2) Heisenberg symmetry that have 2, 4, and 6 spin exchanges. We study tw…

cond-mat.str-el2025★ 2 cited

Superlinear Hall angle and carrier mobility from non-Boltzmann magnetotransport in the spatially disordered Yukawa-Sachdev-Ye-Kitaev model on a square lattice

Davide Valentinis, Jörg Schmalian, Subir Sachdev +1

Exact numerical results for the dc magnetoconductivity tensor of the two-dimensional spatially disordered Yukawa-Sachdev-Ye-Kitaev (2D-YSYK) model on a square lattice, at first ord…

cond-mat.str-el2025★ 1 cited

Incommensurate magnetic order drives singular angular magnetoresistance in a Weyl semimetal

X. Yao, P. Chen, R. Verma +15

We demonstrate that a multi- $k$ incommensurate magnetic state in the Weyl semimetal CeAlGe gives rise to singular angular magnetoresistance (SAMR), an electrical-transport…

cond-mat.str-el2025★ 4 cited

Fractionalized Fermi liquids and the cuprate phase diagram

Pietro M. Bonetti, Maine Christos, Alexander Nikolaenko +2

We review a theoretical framework for the cuprate superconductors, rooted in a fractionalized Fermi liquid (FL*) description of the intermediate-temperature pseudogap phase at low…

cond-mat.str-el2025

Electron doping in single crystalline BaBiO $_{3}$ : BaBiO $_{3 - x}$ F $_{x}$

Sathishkumar M, Asha Ann Abrahama, Rajesh Kumar Sahu +2

Topological insulators are a new class of insulators with conducting surface state. Most of the topological insulators are chalcogenides, where a tiny amount of chalcogen vacancy d…

cond-mat.str-el2025

Proximity-induced flat bands and topological properties in a decorated diamond chain

K Shivanand Thakur, Vihodi Theuno, Amrita Mukherjee +1

In the present study, we propose a unique scheme to generate and control multiple flat bands in a decorated diamond chain by using a strain-induced proximity effect between the dia…

cond-mat.str-el2025★ 1 cited

Complex single-site magnetism and magnetotransport in single-crystalline Gd $_{2}$ AlSi $_{3}$

Ram Kumar, Shanta R. Saha, Jarryd Horn +8

We present a detailed investigation of single-crystal samples of the magnetic compound Gd $_{2}$ AlSi $_{3}$ , which crystallizes in the $α$ -ThSi $_{2}$ type tetragonal structure. We repo…

cond-mat.str-el2025★ 6 cited

Magnetism-Enhanced Strong Electron-Phonon Coupling in Infinite-Layer Nickelate

Ruiqi Zhang, Yanyong Wang, Manuel Engel +12

Intriguing analogies between the nickelates and the cuprates provide a promising avenue for unraveling the microscopic mechanisms underlying high- $T_{c}$ superconductivity. While ele…

cond-mat.str-el2025

New Methods for Critical Analysis: Revealing the Simultaneous Existence of Universality Classes in Nontrivial Magnetic Systems

Harish Chandr Chauhan, Umesh C. Roy, Shovan Dan +2

In magnetic systems, the microscopic constituents exhibit power law behavior near the paramagnetic transition temperature, $T_{C}$ . The critical exponents (CEs) associated with the p…

cond-mat.str-el2024

Magnetic ground state and excitations in mixed 3 $d$ -4 $d$ quasi-1D spin-chain oxide Sr $_{3}$ NiRhO $_{6}$

A. Jain, D. T. Adroja, S. Rayaprol +4

Entanglement of spin and orbital degrees of freedom, via relativistic spin-orbit coupling, in 4 $d$ transition metal oxides can give rise to a variety of novel quantum phases. A pre…

cond-mat.str-el2024★ 3 cited

Thermal Hall response of an abelian chiral spin liquid at finite temperatures

Avijit Maity, Haoyu Guo, Subir Sachdev +1

Thermal Hall transport has emerged as a valuable tool for probing the fractionalized excitations in chiral quantum spin liquids. Observing quantized thermal Hall response, expected…

cond-mat.str-el2024

Electronic and magnetic ground state of 4 $d^{3}$ double perovskite ruthenates A $_{2}$ LaRuO $_{6}$ (A $=$ Ca, Sr, Ba)

Asha Ann Abraham, Roumita Roy, Ruta Kulkarni +2

4 $d$ transition metal oxide (TMO) offers an intriguing puzzle for their electronic and magnetic ground state. They are in the cross-over regime of strong spin orbit interaction (SO…

cond-mat.str-el2024★ 24 cited

An antiferromagnetic diode effect in even-layered MnBi2Te4

Anyuan Gao, Shao-Wen Chen, Barun Ghosh +26

In a PN junction, the separation between positive and negative charges leads to diode transport. In the past few years, the intrinsic diode transport in noncentrosymmetric polar co…

cond-mat.str-el2024

Robustness of a state with Ising topological order against local projective measurements

Sanjeev Kumar, Vikram Tripathi

We investigate the fragility of a topologically ordered state, namely, the ground state of a weakly Zeeman perturbed honeycomb Kitaev model to environment induced decoherence effec…

cond-mat.str-el2024★ 2 cited

Field tuning Kitaev systems for spin fractionalization and topological order

Jagannath Das, Sarbajaya Kundu, Aman Kumar +1

The honeycomb Kitaev model describes a $Z_{2}$ spin liquid with topological order and fractionalized excitations consisting of gapped $π$ -fluxes and free Majorana fermions. Competing…

cond-mat.str-el2024★ 2 cited

Room temperature charge density wave in a tetragonal polymorph of Gd2Os3Si5 and study of its origin in the RE2T3X5 (RE = Rare earth, T = transition metal, X = Si, Ge) series

Vikash Sharma, Sitaram Ramakrishnan, S. S. Jayakrishnan +9

Charge density wave (CDW) systems are proposed to exhibit application potential for electronic and optoelectronic devices. Therefore, identifying new materials that exhibit a CDW s…

cond-mat.str-el2024★ 3 cited

Magnetic effects of non-magnetic impurities in gapped short-range resonating valence bond spin liquids

Md Zahid Ansari, Kedar Damle

We study the effect of a small density $n_{v}$ of quenched non-magnetic impurities, i.e. vacancy disorder, in gapped short-range resonating valence bond (RVB) spin liquid states and…

cond-mat.str-el2024★ 1 cited

Microscopic theory of field-tuned topological transitions in the Kitaev honeycomb model

Jagannath Das, Aman Kumar, Vikram Tripathi

We microscopically construct an abelian mutual Chern-Simons lattice gauge theory for magnetic field-tuned topological transitions in the Kitaev model and obtain a complete characte…

cond-mat.str-el2023★ 3 cited

Survival of magnetic correlations above ordering temperature in a ferromagnetically ordered classical kagomé magnet: Li9Cr3(P2O7)3(PO4)2

R. Kumar, A. Chakraborty, S. Fukuoka +4

Motivated by the recent discovery of a semiclassical nematic spin liquid state in a Heisenberg kagomé antiferromagnet Li9Fe3(P2O7)3(PO4)2 (LFPO) with S=5/2 [Kermarrec et al. Phys.…

cond-mat.str-el2023★ 1 cited

Role of crystal field ground state in the classical spin-liquid behavior of a quasi-one dimensional spin-chain system Sr3NiPtO6

V. K. Anand, D. T. Adroja, S. Rayaprol +5

The spin-chain compound Sr3NiPtO6 is known to have a nonmagnetic ground state. We have investigated the nature of ground state of Sr3NiPtO6 using magnetic susceptibility $χ (T)$ , he…

cond-mat.str-el2023★ 1 cited

Competition between Neel, Haldane nematic, plaquette valence bond solid, and $(π, π)$ valence bond solid phases in SU(N) analogs of $S = 1$ square-lattice antiferromagnets

Souvik Kundu, Nisheeta Desai, Kedar Damle

We use stochastic series expansion (SSE) quantum Monte Carlo (QMC) methods to study the phases and transitions displayed by a class of sign-free designer Hamiltonians for SU( $N$ ) a…

cond-mat.str-el2023

Fate of Bosonic Topological Edge Modes in the Presence of Many-Body Interactions

Niclas Heinsdorf, Darshan G. Joshi, Hosho Katsura +1

Many magnetic materials are predicted to exhibit bosonic topological edge modes in their excitation spectra, because of the nontrivial topology of their magnon, triplon, or other q…

Tunable Chaos in the Finite Mean SYK Model

Topological phases of bosons with local parity coupling on a dimerized lattice

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

Superlinear Hall angle and carrier mobility from non-Boltzmann magnetotransport in the spatially disordered Yukawa-Sachdev-Ye-Kitaev model on a square lattice

Incommensurate magnetic order drives singular angular magnetoresistance in a Weyl semimetal

Fractionalized Fermi liquids and the cuprate phase diagram

Electron doping in single crystalline BaBiO3​: BaBiO3−x​Fx​

Proximity-induced flat bands and topological properties in a decorated diamond chain

Complex single-site magnetism and magnetotransport in single-crystalline Gd2​AlSi3​

Magnetism-Enhanced Strong Electron-Phonon Coupling in Infinite-Layer Nickelate

New Methods for Critical Analysis: Revealing the Simultaneous Existence of Universality Classes in Nontrivial Magnetic Systems

Magnetic ground state and excitations in mixed 3d-4d quasi-1D spin-chain oxide Sr3​NiRhO6​

Thermal Hall response of an abelian chiral spin liquid at finite temperatures

Electronic and magnetic ground state of 4d3 double perovskite ruthenates A2​LaRuO6​ (A = Ca, Sr, Ba)

An antiferromagnetic diode effect in even-layered MnBi2Te4

Robustness of a state with Ising topological order against local projective measurements

Field tuning Kitaev systems for spin fractionalization and topological order

Room temperature charge density wave in a tetragonal polymorph of Gd2Os3Si5 and study of its origin in the RE2T3X5 (RE = Rare earth, T = transition metal, X = Si, Ge) series

Magnetic effects of non-magnetic impurities in gapped short-range resonating valence bond spin liquids

Microscopic theory of field-tuned topological transitions in the Kitaev honeycomb model

Survival of magnetic correlations above ordering temperature in a ferromagnetically ordered classical kagomé magnet: Li9Cr3(P2O7)3(PO4)2

Role of crystal field ground state in the classical spin-liquid behavior of a quasi-one dimensional spin-chain system Sr3NiPtO6

Competition between Neel, Haldane nematic, plaquette valence bond solid, and (π,π) valence bond solid phases in SU(N) analogs of S=1 square-lattice antiferromagnets

Fate of Bosonic Topological Edge Modes in the Presence of Many-Body Interactions

Electron doping in single crystalline BaBiO $_{3}$ : BaBiO $_{3 - x}$ F $_{x}$

Complex single-site magnetism and magnetotransport in single-crystalline Gd $_{2}$ AlSi $_{3}$

Magnetic ground state and excitations in mixed 3 $d$ -4 $d$ quasi-1D spin-chain oxide Sr $_{3}$ NiRhO $_{6}$

Electronic and magnetic ground state of 4 $d^{3}$ double perovskite ruthenates A $_{2}$ LaRuO $_{6}$ (A $=$ Ca, Sr, Ba)

Competition between Neel, Haldane nematic, plaquette valence bond solid, and $(π, π)$ valence bond solid phases in SU(N) analogs of $S = 1$ square-lattice antiferromagnets