Devesh Negi
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View article: Uniaxial Strain‐Dependent Resonant Raman Scattering in WS<sub>2</sub>
Uniaxial Strain‐Dependent Resonant Raman Scattering in WS<sub>2</sub> Open
2D transition metal dichalcogenides (TMDCs) have attracted immense interest due to their remarkable optical and electronic properties. The exceptional mechanical strength and flexibility of these materials enable the modification and tunab…
View article: Probing electron–phonon coupling in magnetic van der Waals material NiPS<sub>3</sub>: A non-magnetic site-dilution study
Probing electron–phonon coupling in magnetic van der Waals material NiPS<sub>3</sub>: A non-magnetic site-dilution study Open
NiPS 3 is a van der Waals antiferromagnet which has been shown to exhibit spin-phonon and spin-charge coupling in the antiferromagnetically ordered state below T N = 155 K. It is also a rare Ni-based negative charge-transfer-type insulator…
View article: Emergence of a spin-liquid-like phase in quantum spin-ladder Ba2CuTeO6 with chemical substitution
Emergence of a spin-liquid-like phase in quantum spin-ladder Ba2CuTeO6 with chemical substitution Open
Stabilization of the quantum spin liquids is vital to realize applications in spintronics and quantum computing. The unique magnetic structure of Ba2CuTeO6 comprising of coupled spin-ladders with finite inter-ladder coupling brings the sys…
View article: Tailoring the defects and electronic band structure in WS2/h-BN heterostructure
Tailoring the defects and electronic band structure in WS2/h-BN heterostructure Open
The 2D semiconducting transition metal dichalcogenides (e.g., WS2) host strong coupling between various degrees of freedom leading to potential applications in next-generation device applications including optoelectronics. Such application…
View article: Spin-phonon coupling suppressing the structural transition in perovskite-like oxide
Spin-phonon coupling suppressing the structural transition in perovskite-like oxide Open
Multifunctional properties in quantum systems require the interaction between different degrees of freedom. As such, spin-phonon coupling emerges as an ideal mechanism to tune multiferroicity, magnetism, and magnetoelectric response. In th…
View article: Tuning the magnetic properties in MPS3 (M = Mn, Fe, and Ni) by proximity-induced Dzyaloshinskii Moriya interactions
Tuning the magnetic properties in MPS3 (M = Mn, Fe, and Ni) by proximity-induced Dzyaloshinskii Moriya interactions Open
Tailoring the quantum many-body interactions in layered materials through appropriate heterostructure engineering can result in emergent properties that are absent in the constituent materials thus promising potential future applications. …
View article: Evidence of Charge-Phonon coupling in Van der Waals materials Ni1-xZnxPS3
Evidence of Charge-Phonon coupling in Van der Waals materials Ni1-xZnxPS3 Open
NiPS3 is a Van der Waals antiferromagnet that has been found to display spin-charge and spin-phonon coupling in its antiferromagnetically ordered state below TN = 155 K. Here, we study high-quality crystals of site-diluted Ni1-xZnxPS3 (0 <…
View article: Hexagonal Boron Nitride–Graphene Heterostructures with Enhanced Interfacial Thermal Conductance for Thermal Management Applications
Hexagonal Boron Nitride–Graphene Heterostructures with Enhanced Interfacial Thermal Conductance for Thermal Management Applications Open
Atomically thin monolayers of graphene show excellent electronic properties which have led to a great deal of research on their use in nanoscale devices. However, heat management of such nanoscale devices is essential in order to improve t…