115 citations · 213 across the 13 of their papers we have counts for
14 papers
Conditions for the Emergence of Spontaneous Phonon Frequency Combs from Anharmonic Potentials
Jayakrishnan SS, Mayanak K Gupta, Dipanshu Bansal
Phononic frequency combs have been demonstrated experimentally and theoretically in the kHz-MHz regime under nonlinear driving; however, their spontaneous formation in the GHz-THz…
Field-tunable partial antiferromagnetism, glassy spin dynamics, and magnetodielectric coupling in the quasi-one-dimensional spin-chain compound Ca3CoIrO6
Priyanka Mahalle, A. Kumar, Kumar Bharti +3
We report a comprehensive investigation of the quasi-one-dimensional spin-chain compound Ca3CoIrO6 (CCIO) using a combination of structural, magnetic, thermodynamic, transport, Ram…
Constraints on magnetism and correlations in RuO from lattice dynamics and Mössbauer spectroscopy
George Yumnam, Parul R. Raghuvanshi, John D. Budai +13
We provide experimental evidence for the absence of a magnetic moment in bulk RuO, a candidate altermagnetic material, by using a combination of Mössbauer spectroscopy, nuclear…
Orbital fluctuations and spin-orbital-lattice coupling in Bi2Fe4O9
Aditya Prasad Roy, M. K. Chattopadhyay, Ranjan Mittal +4
Magnetic frustrations and degeneracies profoundly affect ground-state magnetic properties emerging from competing exchange interactions. Controlling such frustrations using orbital…
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…
Determination of nonthermal bonding origin of a novel photoexcited lattice instability in SnSe
Yijing Huang, Samuel Teitelbaum, Shan Yang +10
Interatomic forces that bind materials are largely determined by an often complex interplay between the electronic band-structure and the atomic arrangements to form its equilibriu…
Observation of a Novel Lattice Instability in Ultrafast Photoexcited SnSe
Yijing Huang, Shan Yang, Samuel Teitelbaum +11
There is growing interest in using ultrafast light pulses to drive functional materials into nonequilibrium states with novel properties. The conventional wisdom is that above gap…
MCBTE: A variance-reduced Monte Carlo solution of the linearized Boltzmann transport equation for phonons
Abhishek Pathak, Avinash Pawnday, Aditya Prasad Roy +3
MCBTE solves the linearized Boltzmann transport equation for phonons in three dimensions using a variance-reduced Monte Carlo solution approach. The algorithm is suited for both tr…
Four-Dimensional Imaging of Lattice Dynamics using Inelastic Scattering
Navdeep Rana, Aditya Prasad Roy, Dipanshu Bansal +1
Time-resolved mapping of lattice dynamics in real- and momentum-space is essential to understand better several ubiquitous phenomena such as heat transport, displacive phase transi…
Phonon anharmonicity and negative thermal expansion in SnSe
Dipanshu Bansal, Jiawang Hong, Chen W. Li +5
The anharmonic phonon properties of SnSe in the Pnma phase were investigated with a combination of experiments and first-principles simulations. Using inelastic neutron scattering…
Weak coupling of pseudoacoustic phonons and magnon dynamics in incommensurate spin ladder compound Sr14Cu24O41
Xi Chen, Dipanshu Bansal, Sean Sullivan +5
Intriguing lattice dynamics has been predicted for aperiodic crystals that contain incommensurate substructures. Here we report inelastic neutron scattering measurements of phonon…
Modeling non-harmonic behavior of materials from experimental inelastic neutron scattering and thermal expansion measurements
Dipanshu Bansal, Amjad Aref, Gary Dargush +1
Based on thermodynamic principles, we derive expressions quantifying the non-harmonic vibrational behavior of materials, which are rigorous yet easily evaluated from experimentally…
Electron-phonon coupling and thermal transport in the thermoelectric compound
Dipanshu Bansal, Chen W. Li, Ayman H. Said +3
Phonon properties of (), a potential high-temperature thermoelectric material, have been studied with inelastic neutron and x-ray scatteri…
Cubic Single Crystal Representations in Classical and Size-dependent Couple Stress Elasticity
Dipanshu Bansal, Gary F. Dargush, Amjad J. Aref +1
Beginning with Cosserat theory in the early 20th century, there have been several different formulations for size-dependent elastic response. In this paper, we concentrate on the a…