Publications

Submitted

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• A shape-driven re-entrant jamming transition in confluent monolayers of synthetic cell-mimics

Pragya Arora, Souvik Sadhukhan, Saroj Kumar Nandi, Dapeng Bi, A K Sood, and Rajesh Ganapathy

(submitted 2024, arXiv)

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Published

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​2023

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• Harnessing viscoelasticity to suppress irreversibility build-up in a colloidal Stirling engine

Niloyendu Roy, A K Sood, and Rajesh Ganapathy

Phys. Rev. Lett. 131, 238201 (2023)

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• Overcoming Power-efficiency Tradeoff in a Micro Heat Engine by Engineered System-bath Interactions

​Sudeesh Krishnamurthy, Rajesh Ganapathy and A K Sood​

Nature Commun. 14, 6842 (2023)

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• Soft Matter Roadmap

​Jean-Louis Barrat, Emanuela Del Gado, Stefan U Egelhaaf, Xiaoming Mao, Marjolein Dijkstra, David J Pine, Sanat K Kumar, Kyle Bishop, Oleg Gang, Allie Obermeyer, Christine M Papadakis, Costantinos Tsitsilianis, Ivan I Smalyukh, Aurelie Hourlier-Fargette, Sebastien Andrieux, Wiebke Drenckhan, Norman Wagner, Ryan P Murphy, Eric R Weeks, Roberto Cerbino, Yilong Han, Luca Cipelletti, Laurence Ramos, Wilson CK Poon, James A Richards, Itai Cohen, Eric M Furst, Alshakim Nelson, Stephen L Craig, Rajesh Ganapathy, Ajay Kumar Sood, Francesco Sciortino, M Mungan, Srikanth Sastry, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, SA Ridout, M Stern, I Tah, G Zhang, Andrea J Liu, Chinedum O Osuji, Yuan Xu, Heather M Shewan, Jason Stokes, Matthias Merkel, Pierre Ronceray, Jean-François Rupprecht, Olga Matsarskaia, Frank Schreiber, Felix Roosen-Runge, Marie-Eve Aubin-Tam, Gijsje Koenderink, Rosa M Espinosa-Marzal, Joaquin Yus, Jiheon Kwon

J. Phys. Mater. (in press, 2023)

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• Intermediate-range order governs dynamics in dense colloidal liquids

Navneet Singh, Zhen Zhang, A K Sood, Walter Kob, and Rajesh Ganapathy

Proc. Natl. Acad. Sci. U.S.A. 120, e2300923120 (2023)​

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• Hierarchical Colloidal Self-Assembly on Lattice-Mismatched Moiré Patterns

Manodeep Mondal and Rajesh Ganapathy

J. Phys. Chem. Lett. 14, 619 (2023)

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​2022

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• Synergisitic Action in Colloidal Heat Engines Coupled by Non-conservative Flows

Sudeesh Krishnamurthy, Rajesh Ganapathy and A K Sood

Soft Matter 18, 7621 (2022) 

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• Direct Measurements of Surface Strain-mediated Lateral Interactions Between Adsorbates in Colloidal Heteroepitaxy

Manodeep Mondal and Rajesh Ganapathy

Phys. Rev. Lett. 129, 088003 (2022) 

Highlighted as an Editor's Suggestion

Covered by Physics Magazine; see Synopsis - Colloids Reproduce Interatom Interactions on Surfaces by Katherine Wright

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• Observation of Two-step Melting on a Sphere

Naveneet Singh, A K Sood and Rajesh Ganapathy

Proc. Natl. Acad. Sci. U.S.A. 119, e2206470119 (2022)

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• Structural Origin of Excitations in a Colloidal Glass Former

Divya Ganapathi, A K Sood and Rajesh Ganapathy

J. Chem. Phys. 156, 214502 (2022)

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• Motile Topological Defects Hinder Dynamical Arrest in Dense Liquids of Active Ellipsoids

Pragya Arora, A K Sood and Rajesh Ganapathy

Phys. Rev. Lett. 128,  178002 (2022) 

Highlighted as an Editor's Suggestion

Covered by Physics Magazine; see Synopsis - Defects Help 3D-Printed Particles Keep on Swirling by Katie McCormick

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2021

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• Tuning the Performance of a Micrometer-sized Stirling engine Through Reservoir Engineering

Niloyendu Roy, Nathan Leroux, A K Sood and Rajesh Ganapathy

Nature Commun. 12, 4927 (2021)

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• Emergent Stereoselective Interactions and Self-recognition in Polar Chiral Active Ellipsoids

Pragya Arora, A K Sood and Rajesh Ganapathy

Science Adv. 7, Issue 9, eabd0331 (2021)

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• Structure Determines Where Crystallization Occurs in a Soft Colloidal Glass 

Divya Ganapathi, Dibyashree Chakraborti, A K Sood and Rajesh Ganapathy

Nature Phys. 17, 114 (2021)

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2020

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• Cooperatively Rearranging Regions Change Shape Near the Mode-coupling Crossover for Colloidal Liquids on a Sphere

Navneet Singh, A K Sood and Rajesh Ganapathy

Nature Commun. 11, 4967 (2020)

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• Role of Particle Orientational Order During Shear-thickening in Suspensions of Colloidal Rods 

Vikram Rathee, Srishti Arora, Daniel Blair, Jeffrey S Urbach, A K Sood and Rajesh Ganapathy

Phys. Rev. E. 101, 040601(R) (2020)

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• Cooperative Particle Rearrangements Faciliate the Self-organised Growth of Colloidal Crystal Arrays on Strain-relief Patterns

Manodeep Mondal, Chandan K Mishra, Rajdeep Banerjee, Shobhana Narasimhan, A K Sood and Rajesh Ganapathy

Science Adv. 6, Issue 10, eaay 8418 (2020)

Featured as a banner on Science Advances webpage.

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​2019

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• Long-wavelength Fluctuations and Anomalous Dynamics in Two-dimensional Liquids

Yan-Wei Li, Chandan K Mishra, Zhao-Yan Sun, Kun Zhao, Thomas G. Mason, Rajesh Ganapathy and Massimo Pica Ciamarra

Proc. Natl. Acad. Sci. U.S.A. 116, 22977 (2019)

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• Strength of Mechanical Memories is Maximal at the Yield Point of a Soft Glass 

Srimayee Mukherji, Nellima Kandula, A K Sood and Rajesh Ganapathy

Phys. Rev. Lett. 122, 158001 (2019)

Highhlighted as a Editor's Suggestion and featured as a cover of Apr 19th Issue

Covered by Johanna Miller in Physics Today - A raft of soap bubbles remembers its past

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2018

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• Measurements of Growing Surface Tension of Amorphous-Amorphous Interfaces on Approaching the Colloidal Glass Transition

Divya Ganapathi, Hima K Nagamanasa, A K Sood and Rajesh Ganapathy

Nature Commun.  9, 397 (2018)

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2017

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• Crystallization: Brought to the surface

Rajesh Ganapathy and AK Sood

News & Views

Nature Phys. 13, 421 (2017)

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2016

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• Site-specific Colloidal Crystal Nucleation by Template-enhanced Particle Transport

Chandan K Mishra, AK Sood and Rajesh Ganapathy

Proc. Natl. Acad. Sci. U.S.A. 113, 12094 (2016)

 

• A Micrometer-sized Engine Operating Between Bacterial Reservoirs

Suddesh Krishnamurthy, Subho Ghosh, Dipankar Chatterji, Rajesh Ganapathy and A K Sood

Nature Phys. 12, 1134 (2016)

 

• Influence of an amorphous wall on the distribution of localized excitations in a colloidal glass-forming liquid

Shreyas Gokhale, Hima K Nagamanasa, A K Sood and Rajesh Ganapathy

Journal of Statistical Mechanics: Theory and Experiment 7, 074013 (2016)

 

• Deconstructing the Glass Transition Through Critical Experiments on Colloids

Shreyas Gokhale, A K Sood and Rajesh Ganapathy

Advances in Physics 65, 363 (2016)

 

• Localized Excitations and the Morphology of Cooperatively Rearranging Regions in a Colloidal Glass-Forming Liquid

Shreyas Gokhale, Rajesh Ganapathy, Hima K Nagamanasa and A K Sood

Phys. Rev. Lett. 116, 068305 (2016)

 

• Mechanical Properties of C60 Thin films at the Air-Water Interface

V Santhosh, R Voggu, P Chaturbedy, Rajesh Ganapathy and CNR Rao

Carbon 96, 1 (2016)

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2015

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• Viscoelastic Nature of Au Nanoparticle PDMS Nanocomposite Gels

Ritu Gupta, Hima K Nagamanasa, Rajesh Ganapathy and Giridhar U Kulkarni

Bull. Mater. Sci. Indian Academy of Sciences 38, 817 (2015)

 

• Shape of Dynamical Heterogeneities and the Fractional Stokes-Einstein and Stokes-Einstein-Debye Relations in Suspensions of Colloidal Ellipsoids

Chandan K Mishra and Rajesh Ganapathy

Phys. Rev. Lett. 114, 198302 (2015)

 

• Direct Measurements of Growing Amorphous Order and Non-monotonic Dynamic Correlations in a Colloidal Glass Former

Hima K Nagamanasa, Shreyas Gokhale, A K Sood and Rajesh Ganapathy

Nature Phys. 11, 403 (2015)

See News & Views by Eric Weeks

Also featured as the cover of Nature Physics May 2015

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2014

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• Dynamical Facilitation Governs Glassy Dynamics in Suspensions of Colloidal Ellipsoids

Chandan K Mishra, Hima K Nagamanasa, Rajesh Ganapathy, A K Sood and Shreyas Gokhale

Proc. Natl. Acad. Sci. U.S.A. 111, 15362 (2014)

 

• Growing Dynamical Facilitation on Approaching the Random Pinning Colloidal Glass Transition

Shreyas Gokhale, Hima K Nagamanasa, Rajesh Ganapathy and A K Sood

Nature Commun. 5, Article # 4685 (2014)

 

• Experimental Signatures of a Non-Equilibrium Phase Transition Governing the Yielding of a Soft Glass

Hima K Nagamanasa, Shreyas Gokhale, A. K. Sood and Rajesh Ganapathy

Phys. Rev. E 89, 062308 (2014)

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2013

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• Grain Growth and Grain Boundary Dynamics in Colloidal Crystals

Shreyas Gokhale, Hima K Nagamanasa, Rajesh Ganapathy and A. K. Sood

Themed Issue on Emerging Investigators In Soft Matter

Soft Matter 9, 6634 (2013)

 

• Entropy Driven Crystal Formation on Highly Strained Substrates

John R Savage, Stefan R Hopp, Rajesh Ganapathy, Sharon J Gerbode, Andreas Heuer and Itai Cohen 

Proc. Natl. Acad. Sci. U.S.A. 110, 9301 (2013)

 

• Two-Step Glass Transition Induced by Attractive Interactions in Quasi-two-dimensional Suspensions of Ellipsoidal Particles

Chandan K Mishra, Amritha Rangarajan and Rajesh Ganapathy

Phys. Rev. Lett. 110, 188301 (2013)

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2012

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• Directional Grain Growth from Anisotropic Kinetic Roughening of Grain Boundaries in Sheared Colloidal Crystals

Shreyas Gokhale, Hima K Nagamanasa, V Santhosh, A K Sood, and Rajesh Ganapathy

Proc. Natl. Acad. Sci. U.S.A. 109, 20314 (2012)

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2011

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• Confined Glassy Dynamics At Grain Boundaries In Colloidal Crystals

Hima K Nagamanasa, Shreyas Gokhale, Rajesh Ganapathy, and A K Sood 

Proc. Natl. Acad. Sci. U.S.A. 108, 11323 (2011)

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2010

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• Direct Measurements of Island Growth and Step-edge Barriers in Colloidal Epitaxy

Rajesh Ganapathy, Mark R. Buckley, Sharon Gerbode and Itai Cohen

Science 327, 445 (2010)

Perspectives by Theodore L. Einstein and Timothy J. Stasevich, Science 327, 423 (2010) 

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2008

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• Spatiotemporal Nematodynamics in Wormlike Micelles En route to Rheochaos 

Rajesh Ganapathy, Sayantan Majumdar and A K Sood 

Phys. Rev. E 78, 021504 (2008)

 

• Spatiotemporal Dynamics of Shear Induced Bands En route to Rheochaos

Rajesh Ganapathy, Sayantan Majumdar and A K Sood

Europhys. J B 64, 537 (2008)

 

• Nonlinear Dynamics in the Flow of Wormlike Micelles: Regular and Chaotic Time-dependence of Stress, Normal Force and Nematic Ordering

Rajesh Ganapathy and A K Sood

J. Non-Newton. Fluid 149, 78 (2008)

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2007

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• Interfacial Rheology of an Ultrathin Nanocrystalline Film Formed at the Liquid/Liquid Interface

R Krishnaswamy, S Majumdar, Rajesh Ganapathy, V V Agarwal, A K Sood, and C N R Rao

Langmuir 23(6), 3084 (2007)

 

• Structure of Mesh Phases in a Cationic Surfactant System with Strongly Bound Counterions

S K Ghosh, Rajesh Ganapathy, R Krishnaswamy, J Bellare, V A Raghunathan and A K Sood

Langmuir 23(7), 3606 (2007)

 

• Superdiffusion of Concentration in Wormlike Micelles

Rajesh Ganapathy, A K Sood and Sriram Ramaswamy

Europhys. Lett. 77, 18007 (2007)

 

• Granger Causality and Cross Recurrence Plots in Rheochaos

Rajesh Ganapathy, G. Rangarajan and A K Sood

Phys. Rev. E 75, 016211 (2007)

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2006

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• Tuning Rheochaos by Temperature in Wormlike Micelles

Rajesh Ganapathy and A K Sood

Langmuir 22(26), 11016 (2006)

 

• Order and Chaos in Soft Condensed Matter

A K Sood and Rajesh Ganapathy

Pramana - Journal of Physics 67, 33 (2006)

 

• Intermittency Route to Rheochaos in Wormlike Micelles with Flow-Concentration Coupling

Rajesh Ganapathy and A K Sood

Phys. Rev. Lett. 96, 108301 (2006)

 

• Structure of poly (propyl ether imine) (PETIM) dendrimer from fully atomistic molecular Dynamics Simulation and by Small Angle X-ray scattering

Chandan Jana, G. Jayamurugan, Rajesh Ganapathy, Prabal K. Maiti, N. Jayaraman and A K Sood

J. Chem. Phys. 124, 204719 (2006)