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µSR Investigation of Doped IrTe 2 - PowerPoint PPT Presentation


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

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sr investigation of doped irte 2

µSR Investigation of Doped IrTe2

Murray Wilson

Jiaqiang Yan, David Mandrus, Timothy Munsie, Teresa Medina, Graeme Luke

slide2

Outline

  • Motivation
  • µSR Introduction
  • Ir0.95Pt0.05Te2 TF µSR
  • Fe0.33Ir0.83Te2 ZF µSR
  • Conclusion
slide3

Motivation – IrTe2

Layered structure

High spin-orbit coupling

Structural transition

IrTe

Matsumoto JLTP 1999

1/15

slide4

Motivation

Feng Sci. Rep. 3 1153 2013

Yan arXiv:1309.4829v1

Yang PRL 108 116402 (2012)

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slide5

µSR Technique

J.E. SonierMuon Spin Rotation/Relaxation/Resonance (µSR)

3/15

slide9

TF µSR

Pt-IrTe2

B = 300 G

6/15

slide10

Superfluid Density

Pt-IrTe2

7/15

slide11

Superfluid Density

Pt-IrTe2

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slide12

Superfluid Density

Pt-IrTe2

9/15

slide13

BCS Comparison

[1] D.J. Yu et. al PRB 89, 100501(R) March 4 2014

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slide14

Fe0.33Ir0.83Te2

Single Crystal

slide15

ZF µSR

Fe-IrTe2

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slide16

ZF µSR

Fe-IrTe2

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slide17

ZF µSR

Fe-IrTe2

Spin Glass TC≈ 10K

13/15

slide18

ZF µSR

Fe-IrTe2

J.-Q. Yan et al. arXiv:1309.4829v1 [cond-mat.supr-con] 19-09-2013

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slide19

Conclusions

Fe-IrTe2 spin glass, TC ≈ 10K

Pt-IrTe2 weak coupling fully gapped BCS superconductor, TC = 2.24K

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slide20

Acknowledgments

Timothy Munsie

Alannah Hallas

Teresa Medina

Dr. Graeme Luke

Dr. BassamHitti

Dr. Gerald Morris

Dr. Jiaqiang Yan

Dr. David Mandrus

LianLiu

Benjamin Frandsen

Dr. YasutomoUemura