Search Results - "Bansal, Dipanshu"

Anharmonic lattice dynamics and superionic transition in AgCrSe2 by Ding, Jingxuan, Niedziela, Jennifer L, Bansal, Dipanshu, Wang, Jiuling, He, Xing, May, Andrew F, Ehlers, Georg, Abernathy, Douglas L, Said, Ayman, Alatas, Ahmet, Ren, Yang, Arya, Gaurav, Delaire, Olivier

“…Intrinsically low lattice thermal conductivity (κlat) in superionic conductors is of great interest for energy conversion applications in thermoelectrics. Yet,…”
Get full text

Selective breakdown of phonon quasiparticles across superionic transition in CuCrSe2 by Niedziela, Jennifer L., Bansal, Dipanshu, May, Andrew F., Ding, Jingxuan, Lanigan-Atkins, Tyson, Ehlers, Georg, Abernathy, Douglas L., Said, Ayman, Delaire, Olivier

“…Superionic crystals exhibit ionic mobilities comparable to liquids while maintaining a periodic crystalline lattice. The atomic dynamics leading to large ionic…”
Get full text

Magnetically driven phonon instability enables the metal–insulator transition in h-FeS by Bansal, Dipanshu, Niedziela, Jennifer L., Calder, Stuart, Lanigan-Atkins, Tyson, Rawl, Ryan, Said, Ayman H., Abernathy, Douglas L., Kolesnikov, Alexander I., Zhou, Haidong, Delaire, Olivier

“…Hexagonal iron sulfide exhibits a fascinating coexistence of metal–insulator, structural and magnetic transitions, reflecting an intimate interplay of its…”
Get full text

Momentum-resolved observations of the phonon instability driving geometric improper ferroelectricity in yttrium manganite by Bansal, Dipanshu, Niedziela, Jennifer L., Sinclair, Ryan, Garlea, V. Ovidiu, Abernathy, Douglas L., Chi, Songxue, Ren, Yang, Zhou, Haidong, Delaire, Olivier

“…Magnetoelectrics offer tantalizing opportunities for devices coupling ferroelectricity and magnetism but remain difficult to realize. Breakthrough strategies…”
Get full text

Four-dimensional imaging of lattice dynamics using ab-initio simulation by Rana, Navdeep, Roy, Aditya Prasad, Bansal, Dipanshu, Dixit, Gopal

“…Time-resolved mapping of lattice dynamics in real- and momentum-space is essential to better understand several ubiquitous phenomena such as heat transport,…”
Get full text

Observation of a Novel Lattice Instability in Ultrafast Photoexcited SnSe by Huang, Yijing, Yang, Shan, Teitelbaum, Samuel, De la Peña, Gilberto, Sato, Takahiro, Chollet, Matthieu, Zhu, Diling, Niedziela, Jennifer L., Bansal, Dipanshu, May, Andrew F., Lindenberg, Aaron M., Delaire, Olivier, Reis, David A., Trigo, Mariano

“…There is growing interest in using ultrafast light pulses to drive functional materials into nonequilibrium states with novel properties. The conventional…”
Get full text

Magnetically driven phonon instability enables the metal–insulator transition in h-FeS by Bansal, Dipanshu, Niedziela, Jennifer L., Calder, Stuart, Lanigan-Atkins, Tyson, Rawl, Ryan, Said, Ayman H., Abernathy, Douglas L., Kolesnikov, Alexander I., Zhou, Haidong, Delaire, Olivier

Get full text

Nonlocal Probing of Amplitude Mode Dynamics in Charge-Density-Wave Phase of EuTe4 by Ranjana Rathore, Himanshu Singhal, Vivek Dwij, Mayanak K Gupta, Abhishek Pathak, Juzer Ali Chakera, Ranjan Mittal, Aditya Prasad Roy, Arun Babu, Ruta Kulkarni, A Thamizhavel, Ayman H Said, Dipanshu Bansal

“…Amplitude mode is collective excitation emerging from frozen lattice distortions below the charge-density-wave (CDW) transition temperature TCDW and relates to…”
Get full text

Analytical and numerical investigation of finite and infinite periodic lattices for mitigation of seismic waves in layered grounds by Amanat, Shahab, Rafiee-Dehkharghani, Reza, Bitaraf, Maryam, Bansal, Dipanshu

“…This paper studies periodically arranged seismic barriers consisting of finite and infinite lattices to mitigate seismic surface waves in layered soils. Using…”
Get full text

Anharmonic Eigenvectors and Acoustic Phonon Disappearance in Quantum Paraelectric SrTiO3 by He, Xing, Bansal, Dipanshu, Winn, Barry, Chi, Songxue, Boatner, Lynn, Delaire, Olivier

“…Pronounced anomalies in the SrTiO3 dynamical structure factor, S(Q, E), including the disappearance of acoustic phonon branches at low temperatures, were…”
Get full text

Modified non-dominated sorting genetic algorithm-II for the optimal design of soil-concrete periodic plane wave barriers by Amanat, Shahab, Gholami, Kourosh, Rafiee-Dehkharghani, Reza, Bansal, Dipanshu

“…This paper uses the Bloch-Floquet theory based on the modified non-dominated sorting genetic algorithm-II (NSGA-II) to investigate the optimal design of wave…”
Get full text

Orbitally driven giant phonon anharmonicity in SnSe by Li, C. W., Hong, J., May, A. F., Bansal, D., Chi, S., Hong, T., Ehlers, G., Delaire, O.

“…Understanding elementary excitations and their couplings in condensed matter systems is critical for developing better energy-conversion devices. In…”
Get full text

Plane waves mitigation in saturated porous media using optimal periodic wave barriers by Amanat, Shahab, Gholami, Kourosh, Rafiee-Dehkharghani, Reza, Bansal, Dipanshu

“…•Wave barrier design for mitigation of plane waves in fluid-saturated porous media.•Unit cell analysis based on Bloch-Flouquet theory.•Biot’s theory is used…”
Get full text

Quasi-One-Dimensional Fermi Surface Nesting and Hidden Nesting Enable Multiple Kohn Anomalies in α-Uranium by Roy, Aditya Prasad, Bajaj, Naini, Mittal, Ranjan, Babu, Peram D, Bansal, Dipanshu

“…The topology of the Fermi surface controls the electronic response of a metal, including charge density wave (CDW) formation. A topology conducive for Fermi…”
Get full text

MCBTE: A variance-reduced Monte Carlo solution of the linearized Boltzmann transport equation for phonons by Pathak, Abhishek, Pawnday, Avinash, Roy, Aditya Prasad, Aref, Amjad J., Dargush, Gary F., Bansal, Dipanshu

“…MCBTE solves the linearized Boltzmann transport equation for phonons in three-dimensions using a variance-reduced Monte Carlo solution approach. The algorithm…”
Get full text

Strongly Anharmonic Phonons and Their Role in Superionic Diffusion and Ultralow Thermal Conductivity of Cu7PSe6 by Gupta, Mayanak K., Ding, Jingxuan, Bansal, Dipanshu, Abernathy, Douglas L., Ehlers, Georg, Osti, Naresh C., Zeier, Wolfgang G., Delaire, Olivier

“…The quest for advanced superionic materials requires understanding their complex atomic dynamics, but detailed studies of the interplay between lattice…”
Get full text

Room Temperature Charge Density Wave in a Tetragonal Polymorph of Gd 2 Os 3 Si 5 and Study of Its Origin in the RE 2 T 3 X 5 ( RE = Rare Earth, T = Transition Metal, X = Si, Ge) Series by Sharma, Vikash, Ramakrishnan, Sitaram, SS, Jayakrishnan, Kotla, Surya Rohith, Maiti, Bishal, Eisele, Claudio, Agarwal, Harshit, Noohinejad, Leila, Tolkiehn, Martin, Bansal, Dipanshu, van Smaalen, Sander, Arumugam, Thamizhavel

Get full text

Anharmonic Eigenvectors and Acoustic Phonon Disappearance in Quantum Paraelectric SrTiO 3 by He, Xing, Bansal, Dipanshu, Winn, Barry, Chi, Songxue, Boatner, Lynn, Delaire, Olivier

Get full text

Anharmonic Eigenvectors and Acoustic Phonon Disappearance in Quantum Paraelectric SrTiO3 by He, Xing, Bansal, Dipanshu, Winn, Barry, Chi, Songxue, Boatner, Lynn, Delaire, Olivier

“…Pronounced anomalies in the SrTiO3 dynamical structure factor, S(Q,E), including the disappearance of acoustic phonon branches at low temperatures, were…”
Get full text

Room Temperature Charge Density Wave in a Tetragonal Polymorph of Gd2Os3Si5 and Study of Its Origin in the RE 2 T 3 X 5 (RE = Rare Earth, T = Transition Metal, X = Si, Ge) Series by Sharma, Vikash, Ramakrishnan, Sitaram, SS, Jayakrishnan, Kotla, Surya Rohith, Maiti, Bishal, Eisele, Claudio, Agarwal, Harshit, Noohinejad, Leila, Tolkiehn, Martin, Bansal, Dipanshu, van Smaalen, Sander, Arumugam, Thamizhavel

“…Charge density wave (CDW) systems are proposed to exhibit application potential for electronic and optoelectronic devices. However, CDWs often develop at…”
Get full text