Muon spin rotation study of

✍ Scribed by G.J. MacDougall; R.J. Cava; S.-J. Kim; P.L. Russo; A.T. Savici; C.R. Wiebe; A. Winkels; Y.J. Uemura; G.M. Luke

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 167 KB
• Volume: 374-375
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2005.11.070

✦ Synopsis

We have performed transverse field mSR measurements of the non-oxide perovskite compound MgCNi 3 down to 20 mK to determine the magnetic field penetration depth, finding lð0Þ ¼ 2315 AE 10 Å. We have also performed zero-field measurements and can exclude any spontaneous internal fields greater than 0.02 G. Thus, we conclude that the superconducting state does not possess broken time reversal symmetry.