Publications 

Selected Publications 

24. "Resistance hysteresis in the integer and fractional quantum Hall regime", E Peraticos, S Kumar, M Pepper, A Siddiki, I Farrer, D Ritchie, G Jones, J Griffiths, Phys Rev B, 107, 205307 (2023).journals.aps.org/prb/pdf/10.1103/PhysRevB.107.205307   

23. "Nonequilibrium phenomena in bilayer electron systems", A A Shevyrin, S Rathi, P See, I Farrer, D Ritchie, J Griffiths, G Jones, and S Kumar, Phys. Rev. B, 107, L041302 (2023). Link

22. "Suspended Semiconductor Nanostructures: Physics and Technology", A. G. Pogosov, A. A. Shevyrin, D. A. Pokhabov, E. Yu Zhdanov and S Kumar, J. Phys.: Condens. Matter 34 263001 (2022). (Invited Topical Review). Link 

21. "Interactions and non-magnetic fractional quantization in one-dimension", S. Kumar and M. Pepper, Appl. Phys. Lett. 119, 110502 (2021). Invited Perspective Article.

20. "Advances in interaction effects in the quasi one-dimensional electron gas", S. Kumar and M. Pepper, Chapter in a book titled, "Semiconductor Nanodevices, Elsevier Ltd, (ISBN: 978-0-12-822083-2) Pages 7-29, (2021). 

19. "Engineering electron wavefunctions in asymmetrically confined quasi one-dimensional structures", S Kumar, M Pepper, H Montagu, D Ritchie, I Farrer, J Griffiths, and G Jones, Appl. Phys. Lett. 118 (12), 124002 (2021).

18.  “Hall resistance anomalies in the integer and fractional quantum Hall regime”, E. Peraticos, S Kumar, M Pepper, A. Siddiki, I. Farrer, D. Ritchie, G Jones, and J. Griffiths, Phys. Rev. B 102, 115306 (2020).  

17.  “Formation of a non-magnetic, odd-denominator fractional quantized conductance in a quasi-one-dimensional electron system”, S Kumar, M Pepper, D Ritchie, I Farrer, and H Montagu, Appl. Phys. Lett. 115, 123104 (2019)

16. “Non-magnetic fractional quantum states”, S. Kumar, M. Pepper, S. Holmes, H. Montagu, Y. Gul, D. Ritchie and I. Farrer, Physical Review Letters, 122, 086803 (2019). arXiv:1810.09863    

15.  “Magnetoresistance in an electronic cavity coupled to one-dimensional systems”, Chengyu Yan, Sanjeev Kumar, Michael Pepper , Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths and Geb Jones, Applied Physics Letters 113, 112101(2018). arXiv:1809.03552

14.  “Imaging the zigzag Wigner crystal in confinement-tunable quantum wires”, S.-C. Ho, H.-J. Chang, C.-H. Chang, S.-T. Lo, G. Creeth, S. Kumar, I. Farrer, D. Ritchie, J. Griffith, G. Jones, M. Pepper and T.–M. Chen, Physical Review Letters 121, 106801(2018). arXiv:1804.08602, PRL Editors Suggestion; synopsis of the work published as “Detection of a Zigzag Wigner Crystal” in physics.aps.org.

13. “Incipient singlet-triplet states in a hybrid mesoscopic system”, Chengyu Yan, Sanjeev Kumar, Michael Pepper , Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths and Geb Jones,  Physical Review B, Rapid Communications, 97, 241302(R) (2018). arXiv:1806.11065

12. “Coherent spin amplification using a beam splitter”, Chengyu Yan, Sanjeev Kumar , Kalarikad Thomas, Michael Pepper , Patrick See , Ian Farrer , David Ritchie, Jonathan Griffiths and Geb Jones, Physical Review Letters, 120 137701 (2018). PRL Editors Suggestion (arXiv:1803.10171)

11. “Self-organised fractional quantisation in a hole quantum wire”, Y. Gul, S. Holmes, M. Maksym, S. Kumar and M. Pepper, Journal of Physics: Condensed Matter, 30, 09LT01(2018). (arXiv:1802.05205). (Physics World Materials news.)

10. “Engineering the spin polarization of one-dimensional electrons”, Chengyu Yan, Sanjeev Kumar , Kalarikad Thomas, Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths, Geb Jones and Michael Pepper, Journal of Physics: Condensed Matter, 30, 08LT01 (2018).

9. “Temperature dependence of spin-split peaks in transverse electron focusing”, C. Yan, S. Kumar, M. Pepper, P. See, I. Farrer, D. Ritchie, J. Griffiths and G. Jones, Nanoscale Research Letters, 12, 553 (2017). (arXiv:1709.07861)

8.  “Interference Effects in a tunable open-cavity-reflector quantum integrated system”, Chengyu Yan, Sanjeev Kumar , Michael Pepper , Patrick See , Ian Farrer , David Ritchie, Jonathan Griffiths and Geb Jones, Physical Review Applied, 8, 024009 (2017). (arXiv:1708.05431)

7.  “Quantum phase transition detected through one dimensional ballistic conductance”, Abolfazl Bayet, Sanjeev Kumar, Michael Pepper and S. Bose, Physical Review B Rapid Communications, 96, 041116(R) (2017) (arXiv:1611.03185).

6. “Direct observation of exchange-driven spin interactions in one-dimensional system”, Chengyu Yan, Sanjeev Kumar , Kalarikad Thomas, Michael Pepper , Patrick See , Ian Farrer , David Ritchie, Jonathan Griffiths and Geb Jones, Applied Physics Letters, 111, 042107 (2017) (arXiv:1707.04575). APL Editors Pick

5. “Tunneling of Hybridized Pairs of Electrons through a One-Dimensional Channel”, G. Gumbs, D. Huang, J. Hon, M. Pepper, and S. Kumar, Advances in Physics: X, 2(3), 545-568 (2017) (arXiv:1611.04943) (Invited Review Article). (arXiv:1611.04943)

4. “Fano Resonance in a cavity-reflector hybrid system”, Chengyu Yan, Sanjeev Kumar, Michael Pepper , Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths and Geb Jones, Physical Review B Rapid Communications, 95, 041407(R) (2017). (arXiv:1702.02275).

3. “Self-assembled Wigner crystals as mediators of spin currents and quantum information”, Bobby Antonio, Abolfazl Bayat, Sanjeev Kumar, Michael Pepper, Sougato Bose, Physical Review Letters, 115, 216804 (2015). (arXiv:1507.04138).

2.  “Quantum ballistic transport by interacting two-electron states in quasi-one-dimensional channels”, D. Huang, G. Gumbs, Y. Abranyos, M. Pepper and S. Kumar, AIP Advances, 5, 117227 (2015). (arXiv:1505.00515).

1. “Many-body effects in a quasi-one-dimensional electron gas”, Sanjeev Kumar, Kalarikad J. Thomas, Luke W. Smith, Michael Pepper, Graham L. Creeth, Ian Farrer, David Ritchie, Geraint Jones and Jonathan Griffiths, Physical Review B, Rapid Communication, 90, 201304(R) (2014). (arXiv:1411.5855)