Publications

We follow an organized schedule regarding the publication of our findings. Explore the list of published works below and reach us to know more about the work that we do.

Preprints:

1. J. Li, M. Turaev, M. Matsubara, K. Kliemt, C. Krellner, S. Pal, M. Fiebig, and J. Kroha, Discovery of a non-Hermitian phase transition in a bulk condensed-matter system, arXiv:2412.16012 (2024).

Journal Publications:

2. P. Mukherjee, A. Dutta, S. Bhattacharjee, S. Pal, R. Mondal, Field-derivative torque induced magnetization reversal in ferrimagnetic Gd3/2Yb1/2BiFe5O12, accepted in Physical Review Materials, (2025). arXiv.2508.07582 (2025).

3. A. Haldar, K. V. Goyal, R. V. Puranik, V. Dwij, S. Maity, K. R. Khator, S. Ghosh, B. S. Chouhan, G. Kumar, S. P. Senanayak, S. S. Prabhu, and S. Pal, Phonon-polariton mediated dual electromagnetically induced transparency-like response in a THz metamaterial, accepted in Advanced Quantum Technologies, (2025). arXiv.2509.02151 (2025).

4. A. Dutta, P. Shee, A. Haldar, and S. Pal, 2D-THz spectroscopy: Exploring the nonlinear dynamics in quantum materials, Journal of Physics: Condensed Matter 37, 203002 (2025).

5. J. Li, D. Priyadarshi, C.-J. Yang, U. Pohl, O. Stockert, H. von Löhneysen, S. Pal, M. Fiebig, and J. Kroha, Missing spectral weight in a heavy-fermion system far above the Néel temperature, Physical Review B 111, 035117 (2025).

6. A. Dutta, C. Tzschaschel, D. Priyadarshi, K. Mikuni, T. Satoh, R. Mondal, and S. Pal, Evidence of relativistic field-derivative torque in nonlinear THz response of magnetization dynamics, Advanced Functional Materials 35, 2414582 (2025).

7. A. Dutta, P. Mukherjee, S. P. Sarangi, S. Bhattacharjee, S. Pal, and R. Mondal, Role of material-dependent properties in THz field-derivative-torque-induced nonlinear magnetization dynamics, Physical Review Materials 8, 114404 (2024).

8. E. Gradauskaite, C.-J. Yang, S. Pal, M. Fiebig, and M. Trassin, Magnetoelectric phase control at domain-wall-like epitaxial oxide multilayers, Advanced Functional Materials 35, 2412831 (2024).

9. K. Jagadish, A. Godha, B. Pandit, Y. Jadhav, A. Dutta, J. Satapathy, H. Bhatt, B. Singh, S. K. Makineni, S. Pal, and S. R. Rondiya, Charge carrier dynamics in bandgap modulated Covellite-CuS nanostructures, Small 20, 2405859 (2024).

10. K. Jagadish, G. K. Rahane, B. Sai Kumar, D. R. Borkar, K. Chordiya, S. R Kavanagh, A. Roy, T. Debnath, S. Kolekar, M. Upadhyay Kahaly, S. S. Mali, S. Pal, N. Gasparini, D. P. Dubal, and S. R. Rondiya, Interface-centric strategies in kesterite solar cells: Addressing challenges, solutions, and future directions for efficient solar-harvesting technologies, Small 20, 2402048 (2024).

11. K. Mondal, A. Haldar, A. Pramanik, R. Layek, D. Banerjee, V. R. Soma, S. Pal, and P. Kumbhakar, Enhanced femtosecond nonlinear optical susceptibility and terahertz conductivity in MoSe2-noble metal nanocomposites, Advanced Optical Materials 12, 2401138 (2024).

12. C.-J. Yang, M. Woerner, O. Stockert, H. v. Löhneysen, J. Kroha, M. Fiebig, and S. Pal, Kondo coherence versus superradiance in a terahertz radiation-driven heavy-fermion systems, Physical Review B 109, 235103 (2024). 

13. P. Shee, C.-J. Yang, S. K. Pandey, A. K. Nandy, R. Kulkarni, A. Thamizhavel, M. Fiebig, and S. Pal, Terahertz crystal electric field transitions in a Kondo-lattice antiferromagnet, Physical Review B 109, 075133 (2024).

14. A. Puthukkudi, S. Nath, P. Shee, A. Dutta, C. V. Rajput, S. Bommakanti, J. Mohapatra, M. Samal, S. Anwar, S. Pal, and B. P. Biswal, Terahertz conductivity of free-standing 3D covalent organic framework membranes fabricated via triple-layer-dual interfacial approach, Advanced Materials 36, 2312960 (2024). 

15. C.-J. Yang, K. Kliemt, C. Krellner, J. Kroha, M. Fiebig, and S. Pal, Critical slowing down near a magnetic quantum phase transition with fermionic breakdown, Nature Physics 19, 1605 (2023).

16. C.-J. Yang, J. Li, M. Fiebig, and S. Pal, Terahertz control of many-body dynamics in quantum materials, Nature Reviews Materials 8, 518 (2023).

17. J. Li, C.-J. Yang, R. Mondal, C. Tzschaschel, and S. Pal, A perspective on nonlinearities in coherent magnetization dynamics, Applied Physics Letters 120, 050501 (2022).

18. C.-J. Yang, J. Li, J. Lehmann, N. Strkalj, M. Trassin, M. Fiebig, and S. Pal, Birefringence of orthorhombic DyScO3: Towards a terahertz quarter-wave plate, Applied Physics Letters 118, 223506 (2021).

19. S. Pal et al., Origin of Terahertz Soft-Mode Nonlinearities in Ferroelectric Perovskites​, Physical Review X 11, 021023 (2021).

20. S. Markmann, M. Frankié, S. Pal et al., Two-​dimensional spectroscopy on a quantum cascade structure, Nanophotonics 10, 171 (2021).

21. C.-J. Yang, S. Pal et al., Terahertz conductivity of heavy-fermion systems from time-resolved spectroscopy, Physical Review Research 2, 033296 (2020).

22. N. Strkalj, G. De Luca, M. Campanini, S. Pal et al., Depolarizing-​​field effects in epitaxial capacitor heterostructures, Physical Review Letters 123, 147601 (2019).

23. S. Pal et al., Fermi volume evolution and crystal-field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy, Physical Review Letters 122, 096401 (2019).

24. C. Wetli, S. Pal et al., Time-resolved collapse and revival of the Kondo state near a quantum phase transition, Nature Physics 14, 1103 (2018).

25. M. Pawlak, S. Pal et al., Simultaneous measurement of thermal conductivity and diffusivity of an undoped Al0.33Ga0.67As thin film epitaxially grown on a heavily Zn doped GaAs using spectrally-​resolved modulated photothermal infrared radiometry, Thermochimica Acta 662, 69 (2018).

26. M. Pawlak, S. Pal et al., On the infrared absorption coefficient measurement of thick heavily Zn doped GaAs using spectrally resolved modulated photothermal infrared radiometry, Journal of Applied Physics 122, 135109 (2017).

27. L. Consolino, S. Jung, A. Campa, M. De Regis, S. Pal et al., Spectral purity and tunability of terahertz quantum cascade laser sources based on intracavity difference-frequency generation, Science Advances 3, e1603317 (2017).

28. S. Markmann, H. Nong, S. Pal et al., Two-​dimensional coherent spectroscopy of a THz quantum cascade laser: observation of multiple harmonics, Optics Express 25, 21753 (2017).

29. S. Pal et al., Probing indirect exciton complexes in a quantum dot molecule via capacitance-voltage spectroscopy, Physical Review B 94, 245311 (2016).

30. T. Fobbe, S. Markmann, F. Fobbe, N. Hekmat, H. Nong, S. Pal et al., Broadband terahertz dispersion control in hybrid waveguides, Optics Express 24, 22319 (2016).

31. N. Kukharchyk, S. Shvarkov, S. Probst, K. Xia, H.-W. Becker, S. Pal et al., Nanoscale nonlinear effects in Erbium-​implanted Yttrium Orthosilicate, Journal of Luminescence 177, 266 (2016).

32. T. Fobbe, H. Nong, R. Schott, S. Pal et al., Improving the out-coupling of a metal-metal terahertz frequency quantum cascade laser through integration of a hybrid mode section into the waveguide, Journal of Infrared, Millimeter and Terahertz Waves 37, 426 (2016).

33. S. Pal et al., Ultrawide electrical tuning of light-matter interaction in a high electron mobility transistor structure, Scientific Reports 5, 16812 (2015).

34. S. Markmann, H. Nong, S. Pal et al., Spectral modification of the laser emission of a terahertz quantum cascade laser-induced by double-pulse injection seeding, Applied Physics Letters 107, 111103 (2015).

35. M. Malinski, M. Pawłak, Ł. Chrobak, S. Pal et al., Monitoring of amorphization of the oxygen implanted layers in silicon wafers using photothermal radiometry and modulated free carrier absorption methods, Applied Physics A 118, 1009 (2015).

36. H. Nong, S. Pal et al., Narrow-band injection seeding of a terahertz frequency quantum cascade laser: Selection and suppression of longitudinal modes, Applied Physics Letters 105, 111113 (2014).

37. S. Pal et al., Infrared transmission spectroscopy of charge carriers in self-assembled InAs quantum dots under surface electric fields, Journal of Physics: Condensed Matter 26, 505801 (2014).

38. N. Kukharchyk, S. Pal et al., Photoluminescence of focused ion beam implanted Er3+:Y2SiO5 crystals, Physica Status Solidi RRL 8, 880 (2014).

Book Chapters:

1. S. Pal et al., Quantum confinement in high electron mobility transistors in different types of field effect transistors - Theory and Applications, InTech Open, ISBN 978-​953-51-3176-2 (2017). 

Conference proceedings:

1. A. Haldar, J. Li, C.-J. Yang, K. Saha, and S. Pal, Carrier dynamics and transport properties of Ge using optical–pump terahertz–probe spectroscopy, Frontiers in Optics and Laser Science (FiO+LS 2024).

2. S. Markmann, M. Franckié, S. Pal et al., Time-resolved 2D THz-spectroscopy on a THz quantum cascade structure, OSA conference proceedings (CLEO 2021).

3. S. Markmann, M. Franckié, S. Pal et al., 2D - THz-spectroscopy on a quantum cascade structure, IEEE conference proceedings (IRMMW-THz, 2020).

4. S. Pal et al., Two-​dimensional THz spectroscopy of exchange interactions in rare-earth doped garnets, OSA conference proceedings (CLEO 2019).

5. S. Markmann, H. Nong, S. Pal et al., Modifying the spectral emission of a terahertz quantum cascade laser with double pulse injection seeding, OSA conference proceedings (CLEO 2016).

6. T. Fobbe, S. Markmann, F. Fobbe, N. Hekmat, H. Nong, S. Pal et al., Terahertz group velocity dispersion management through integration of a hybrid mode section into a metal-​metal waveguide, OSA conference proceedings (CLEO 2016).

7. S. Pal et al., Density-​chopped far-infrared transmission spectroscopy to probe subband-​landau splittings and tune inter-​subband transitions, OSA conference proceedings (CLEO 2015).

8. H. Nong, S. Pal et al., Selection of longitudinal modes in a terahertz quantum cascade laser via narrow-band injection seeding, OSA conference proceedings (CLEO 2015).

9. N. Kukharchyk, S. Probst, S. Pal et al., Optical and microwave properties of focused ion beam implanted Erbium ions in Y2SiO5, OSA conference proceedings (CLEO 2015).

10. S. Markmann, H. Nong, S. Pal et al., Investigation of time-resolved gain dynamics in an injection seeded terahertz quantum cascade laser, OSA conference proceedings (CLEO 2015).

11. S. Pal et al., Strong coupling of intersubband resonance in a single triangular well to a THz metamaterial, IEEE conference proceedings (IRMMW-​THz, 2015).

12. S. Markmann, H. Nong, S. Pal et al., Double pulse injection seeding of a terahertz quantum cascade laser, IEEE conference proceedings (IRMMW-​THz, 2015).

13. S. Markmann, H. Nong, S. Pal et al., Observation of time-resolved gain dynamics in a terahertz quantum cascade laser, IEEE conference proceedings (IRMMW-​THz, 2015).

14. T. Fobbe, H. Nong, R. Schott, S. Pal et al., Metal-​metal terahertz quantum cascade laser with hybrid mode section, IEEE conference proceedings (IRMMW-​THz, 2015).

15. H. Nong, S. Pal et al., Narrow bandwidth injection seeding of a THz quantum cascade laser, IEEE conference proceedings (IRMMW-​THz, 2014).