Kaushik Dayal

Research Interests

Publications

Researchers

Journal Articles

Piezoelectricity above the Curie temperature? Combining flexoelectricity and functional grading to enable high-temperature electromechanical coupling.
 Raouf Mbarki, Nadia Baccam, Kaushik Dayal, and Pradeep Sharma
 Appl. Phys. Lett., 104:122904, 2014.

Modeling of slow time-scale behavior of fast molecular dynamic systems.
 Likun Tan, Amit Acharya, and Kaushik Dayal.
 J. Mech. Phys. Solids, 64:24, 2014.

A fundamental improvement to Ericksen-Leslie kinematics.
 Hossein Pourmatin, Amit Acharya, and Kaushik Dayal.
 To appear in Q. Appl. Math.

Continuum Mechanics of Line Defects in Liquid Crystals and Liquid Crystal Elastomers.
 Amit Acharya and Kaushik Dayal.
 Q. Appl. Math., 72(1):33-64, 2014.

Atomistic-to-Continuum Multiscale Modeling with Long-Range Electrostatic Interactions in Ionic Solids.
 Jason Marshall and Kaushik Dayal.
 J. Mech. Phys. Solids, 62:137, 2014.
Invited Article for the Rodney Hill Anniversary Issue.

Challenges and Opportunities for Multi-functional Oxide Thin films for Voltage Tunable RF / Microwave Components.
 Guru Subramanyam, Melanie W. Cole, Nian X. Sun, Thottam S. Kalkur, Nick M. Sbrockey, Gary S. Tompa, Xiaomei Guo, Chonglin Chen, S. Pamir Alpay, George A. Rossetti Jr., Kaushik Dayal, Long-Qing Chen, and Darrell Schlom.
 J. Appl. Phys. (Applied Physics Reviews), 114:191301, 2013.

Anomalous Phonon Behavior of Carbon Nanotubes: First-Order Influence of External Load.
 Amin Aghaei, Kaushik Dayal, and Ryan Elliott.
 J. Appl. Phys., 113:023503, 2013.

Symmetry-Adapted Phonon Analysis of Nanotubes.
 Amin Aghaei, Kaushik Dayal, and Ryan Elliott.
 J. Mech. Phys. Solids, 61:557, 2013.

Coarse Variables of Autonomous ODE Systems and Their Evolution.
 Likun Tan, Amit Acharya, and Kaushik Dayal.
 Comput. Methods. Appl. M., 253:199, 2013.

Tension-and-Twist of Chiral Nanotubes: Torsional Buckling, Mechanical Response, and Indicators of Failure.
 Amin Aghaei and Kaushik Dayal.
 Modelling Simul. Mater. Sci. Eng., 20:085001, 2012.

Influence of Strain on Space Charge Distribution at Ferroelectric Thin-Film Free Surfaces.
 Lun Yang and Kaushik Dayal.
 Acta Mater., 60:6457, 2012.

Real-Space Phase-Field Simulation of Piezoresponse Force Microscopy Accounting for Stray Electric Fields.
 Lun Yang and Kaushik Dayal.
 Modelling Simul. Mater. Sci. Eng., 20:035021, 2012.

Free Surface Domain Nucleation in a Ferroelectric under an Electrically Charged Tip.
 Lun Yang and Kaushik Dayal.
 J. Appl. Phys., 111:014106, 2012.

Microstructure and Stray Electric Fields at Surface Cracks in Ferroelectrics.
 Lun Yang and Kaushik Dayal.
 Int. J. Fract., 174:17, 2012.

Design of viscometers corresponding to a universal molecular simulation method.
 Kaushik Dayal and Richard D. James.
 J. Fluid Mech., 691:461, 2012.

Symmetry-Adapted Non-Equilibrium Molecular Dynamics of Chiral Carbon Nanotubes under Tensile Loading.
 Amin Aghaei and Kaushik Dayal.
 J. Appl. Phys., 109:123501, 2011.

A Completely Iterative Method for the Infinite Domain Electrostatic Problem with Nonlinear Dielectric Media.
 Lun Yang and Kaushik Dayal.
 J. Comput. Phys., 230:7821, 2011.

Effect of Lattice Orientation, Surface Modulation, and Applied Fields on Free-Surface Domain Microstructure in Ferroelectrics.
 Lun Yang and Kaushik Dayal.
 Acta Mater., 59:6594, 2011.

Linear Instability Signals the Initiation of Motion of a Twin Plane Under Load.
 Chang-Tsan Lu and Kaushik Dayal.
 Phil. Mag. Lett., 91:264, 2011.

Formulation of phase-field energies for microstructure in complex crystal structures.
 Lun Yang and Kaushik Dayal.
 Appl. Phys. Lett., 96:081916, 2010.

Nonequilibrium molecular dynamics for bulk materials and nanostructures.
 Kaushik Dayal and Richard D. James.
 J. Mech. Phys. Solids, 58:145, 2010.

Active tuning of photonic device characteristics during operation by ferroelectric domain switching.
 Kaushik Dayal and Kaushik Bhattacharya.
 J. Appl. Phys., 102:064102, 2007.

A real-space non-local phase-field model of ferroelectric domain patterns in complex geometries.
 Kaushik Dayal and Kaushik Bhattacharya.
 Acta Mater., 55:1907, 2007.
Recognized for the Acta Materialia Student Award 2008.

Graded ferroelectric capacitors with robust temperature characteristics.
 Mohamed El-Naggar, Kaushik Dayal, David Goodwin, and Kaushik Bhattacharya.
 J. Appl. Phys., 100:114115, 2006.

Kinetics of phase transformations in the peridynamic formulation of continuum mechanics.
 Kaushik Dayal and Kaushik Bhattacharya.
 J. Mech. Phys. Solids, 54:1811, 2006.


Patents

Ferroelectric nanophotonic devices.
 Harry Atwater, Kaushik Bhattacharya, Kaushik Dayal, Matthew Dicken, Demetri Psaltis, Axel Scherer, Guruswami Ravichandran.
 US Patent 7,346,248 B2. Issued Mar 18, 2008.


Ph.D. Theses

Temporal Coarse-Graining of High-frequency Dynamics Using Parameterized Locally Invariant Manifolds and Practical Time Averaging.
  Likun Tan.
  Ph.D. Thesis in Computational Mechanics, Carnegie Mellon University, 2012.

Real Space Phase Field Simulations of Ferroelectric Materials.
 Lun Yang.
 Ph.D. Thesis in Computational Mechanics, Carnegie Mellon University, 2012.