Barker, Joel, Breen, B. D., Hanson, Robert M., Hillier, A. D., Lees, Martin R., Balakrishnan, Geetha, Paul, D. McK. and Singh, R. P. (2018) Superconducting and normal-state properties of the noncentrosymmetric superconductor Re3Ta. Physical Review B, 98 (10). 104506. doi:10.1103/PhysRevB.98.104506

Singh, D., K. P., Sajilesh, Barker, Joel, Paul, Don McK., Hillier, A. D. and Singh, R. P. (2018) Time-reversal symmetry breaking in the noncentrosymmetric superconductor Re6Ti. Physical Review B, 97 (10). 100505(R). doi:10.1103/PhysRevB.97.100505

Barker, Joel, Singh, R. P., Hillier, A. D. and Paul, Don McK. (2018) Probing the superconducting ground state of the rare-earth ternary boride superconductors RRuB2 (R= Lu,Y) using muon-spin rotation and relaxation. Physical Review B, 97 (9). 094506. doi:10.1103/PhysRevB.97.094506

Singh, D., Barker, Joel, Thamizhavel, A., Hillier, A. D., Paul, Don McK. and Singh, R. P. (2018) Superconducting properties and μSR study of the noncentrosymmetric superconductor Nb0.5Os0.5. Journal of Physics: Condensed Matter, 30 (7). 075601. doi:10.1088/1361-648X/aaa376

Singh, D., Barker, Joel, Thamizhavel, A., Paul, Don McK., Hillier, A. D. and Singh, R. P. (2017) Time-reversal symmetry breaking in the noncentrosymmetric superconductor Re6Hf : further evidence for unconventional behavior in the α -Mn family of materials. Physical Review B (Condensed Matter and Materials Physics), 96 (18). 180501. doi:10.1103/PhysRevB.96.180501

Mayoh, Daniel, Barker, Joel, Singh, R. P., Balakrishnan, Geetha, Paul, Don McK. and Lees, Martin R. (2017) Superconducting and normal-state properties of the noncentrosymmetric superconductor Re₆Zr. Physical Review B (Condensed Matter and Materials Physics), 96 (6). 064521. doi:10.1103/PhysRevB.96.064521

Barker, Joel (2017) Muon studies of unconventional superconductors. PhD thesis, University of Warwick.

Barker, Joel, Singh, D., Singh, R. P., Thamizhavel, A., Hillier, A. D. (Adrian D.), Lees, Martin R., Balakrishnan, Geetha and Paul, Don McK. (2015) Unconventional superconductivity in La7Ir3 revealed by muon spin relaxation : introducing a new family of noncentrosymmetric superconductor that breaks time-reversal symmetry. Physical Review Letters, 115 . 267001. doi:10.1103/PhysRevLett.115.267001

Singh, R. P., Hillier, A. D., Chowdhury, D., Barker, Joel, Paul, Don McK., Lees, Martin R. and Balakrishnan, Geetha (2014) Probing the superconducting ground state of the noncentrosymmetric superconductors CaTSi3 (T = Ir, Pt) using muon-spin relaxation and rotation. Physical Review B (Condensed Matter and Materials Physics), Volume 90 (Number 10). Article number 104504 . doi:10.1103/PhysRevB.90.104504

Saghir, Mohammad, Barker, Joel, Balakrishnan, Geetha, Hillier, A. D. (Adrian D.) and Lees, Martin R. (2014) Superconducting properties of Sn1−xInxTe (x=0.38–0.45) studied using muon-spin spectroscopy. Physical Review B (Condensed Matter and Materials Physics), Volume 90 (Number 6). Article number 064508. doi:10.1103/PhysRevB.90.064508