Probing the superconducting ground state of the rare-earth ternary boride superconductors $R$RuB$_2$ ($R$ = Lu,Y) using muon-spin rotation and relaxation

  title={Probing the superconducting ground state of the rare-earth ternary boride superconductors \$R\$RuB\$\_2\$ (\$R\$ = Lu,Y) using muon-spin rotation and relaxation},
  author={J. Barker and Ravi Prakash Singh and Adrian D. Hillier and Don Mck. Paul},
  journal={Physical Review B},
The superconductivity in the rare-earth transition-metal ternary borides RRuB2 (where R = Lu and Y) has been investigated using muon-spin rotation and relaxation. Measurements made in zero field suggest that time-reversal symmetry is preserved upon entering the superconducting state in both materials; a small difference in depolarization is observed above and below the superconducting transition in both compounds, however, this has been attributed to quasistatic magnetic fluctuations… 
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