Výsledky vyhledávání - "Gopal, Radha"

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Suppression of Generation-Recombination Noise in Topological Insulators Through Indium Substitution

Autor: Sharma, Kanav, Banerjee, Ritam, Nandi, Anuvab, Gopal, Radha Krishna, Mitra, Chiranjib

In this work we carry out low-frequency noise spectroscopy (1/f) of highly bulk insulating and disordered thin films of (Bi0.3Sb0.7)2Te3(BST) topological insulator and compare these experimental results of these thin films with the In-doped In0.14(Bi

Externí odkaz: http://arxiv.org/abs/2410.06291

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Investigation of magnetic order influenced phonon and electron dynamics in MnBi$_{2}$Te$_{4}$ and Sb doped MnBi$_{2}$Te$_{4}$ through terahertz time-domain spectroscopy

Autor: Mukherjee, Soumya, NM, Anjan Kumar, Manna, Subhadip, Nath, Sambhu G, Gopal, Radha Krishna, Mitra, Chiranjib, Kamaraju, N.

MnBi$_{2}$Te$_{4}$, the first topological insulator with inherent magnetic ordering, has attracted significant attention recently for providing a platform to realize several exotic quantum phenomena at relatively higher temperatures. In this work, we

Externí odkaz: http://arxiv.org/abs/2403.11580

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Akademický článek

Zinc deficiency enhances sensitivity to influenza A associated bacterial pneumonia in mice.

Autor: Gopal, Radha¹ (AUTHOR) rag100@pitt.edu, Tutuncuoglu, Egemen^2,3 (AUTHOR), Bakalov, Veli^2,3 (AUTHOR), Wasserloos, Karla⁴ (AUTHOR), Li, HuiHua⁴ (AUTHOR), Lemley, David⁴ (AUTHOR), DeVito, Louis J.¹ (AUTHOR), Constantinesco, Nicholas J.¹ (AUTHOR), Reed, Douglas S.⁵ (AUTHOR), McHugh, Kevin J.¹ (AUTHOR), Chinnappan, Baskaran¹ (AUTHOR), Andreas, Alexis R.³ (AUTHOR), Maloy, Abigail³ (AUTHOR), Bain, Daniel⁶ (AUTHOR), Alcorn, John F.¹ (AUTHOR), Pitt, Bruce R.⁴ (AUTHOR), Kaynar, Ata Murat^2,3,7 (AUTHOR) kaynar@pitt.edu

Publikováno v: Physiological Reports. Jan2024, Vol. 12 Issue 1, p1-13. 13p.

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Bulk Saturable absorption in Topological Insulator thin Films

Autor: Gopal, Radha Krishna, Ambast, Deepak K. S., Singh, Sourabh, Sarkar, Jit, Pal, Bipul, Mitra, Chiranjib

We present nonlinear optical absorption properties of pulsed laser deposited thin films of topological insulator (TI), Bi2Se3 on quartz substrate, using open aperture Z - scan technique. The saturable intensity of as-deposited thin films has been fou

Externí odkaz: http://arxiv.org/abs/1612.02977

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Surface Optical and Bulk Acoustic Phonons in the Topological Insulator, Bi2Se2Te

Autor: Mukhopadhyay, Uditendu, Chaudhuri, Dipanjan, Sarkar, Jit, Singh, Sourabh, Gopal, Radha Krishna, Tammu, Sandeep, Upadhya, Prashanth C., Mitra, Chiranjib

Publikováno v: Appl. Phys. Lett., vol. 106, 241106 (2015)

We explore the phonon dynamics of thin films of the topological insulator material Bi2Se2Te using ultrafast pump-probe spectroscopy. The time resolved differential reflectivity of the films exhibit fast and slow oscillations. We have given a careful

Externí odkaz: http://arxiv.org/abs/1504.06685

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Weak-antilocalization and Surface Dominated Transport in Topological Insulator Bi2Se2Te

Autor: Gopal, Radha Krishna, Singh, Sourabh, Chandra, Ramesh, Mitra, Chiranjib

We explore the phase coherence of thin films of the topological insulator material Bi2Se2Te grown through pulsed laser deposition (PLD) technique. The films were characterised using various techniques for phase and composition. The films were found t

Externí odkaz: http://arxiv.org/abs/1407.3899

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