1. µSR Investigation of Doped IrTe 2 Murray Wilson Jiaqiang Yan, David Mandrus, Timothy Munsie, Teresa Medina, Graeme Luke

2. Outline Motivation µSR Introduction Ir 0.95 Pt 0.05 Te 2 TF µSR Fe 0.33 Ir 0.83 Te 2 ZF µSR Conclusion

3. Ir Te 1/15 Motivation – IrTe 2 Layered structure High spin-orbit coupling Structural transition Matsumoto JLTP 1999

4. 2/15 Motivation Yang PRL 108 116402 (2012) Yan arXiv:1309.4829v1 Feng Sci. Rep. 3 1153 2013

5. µSR Technique 3/15 J.E. Sonier Muon Spin Rotation/Relaxation/Resonance (µSR)

6. µSR Technique 4/15

7. µSR Technique 5/15

8. Ir 0.95 Pt 0.05 Te 2

9. TF µSR 6/15 Pt-IrTe 2

10. Superfluid Density 7/15 Pt-IrTe 2

11. Superfluid Density 8/15 Pt-IrTe 2

12. Superfluid Density 9/15 Pt-IrTe 2

13. Ir 0.95 Pt 0.05 Te 2 Present Work Ir 0.95 Pd 0.05 Te 2 Ref. [1] (STS) BCS weak coupling [1] D.J. Yu et. al PRB 89, 100501(R) March 4 2014 BCS Comparison 10/15

14. Fe 0.33 Ir 0.83 Te 2 Single Crystal

15. ZF µSR 11/15 Fe-IrTe 2

16. ZF µSR 12/15 Fe-IrTe 2

17. ZF µSR 13/15 Spin Glass T C ≈ 10K Fe-IrTe 2

18. ZF µSR 14/15 Fe-IrTe 2 J.-Q. Yan et al. arXiv:1309.4829v1 [cond-mat.supr-con] 19-09-2013

19. Fe-IrTe 2 spin glass, T C ≈ 10K Pt-IrTe 2 weak coupling fully gapped BCS superconductor, T C = 2.24K 15/15 Conclusions

20. Acknowledgments Timothy Munsie Alannah Hallas Teresa Medina Dr. Graeme Luke Lian Liu Benjamin Frandsen Dr. Yasutomo Uemura Dr. Bassam Hitti Dr. Gerald Morris Dr. Jiaqiang Yan Dr. David Mandrus