μSR study of fcc Fe100−xNix invar and non-invar alloys

✍ Scribed by S. Murayama; D. Ikeda; Y. Miyako; K. Nishiyama; K. Nagamine; T. Yamazaki; G. Dumpich; E.F. Wassermann

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 622 KB
• Volume: 161
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(89)90099-9

✦ Synopsis

Zero-and transverse-field pSR has been measured on fee Fe,,Ni,, invar and Fe,,Ni,, non-invar alloys. For the non-invar alloy the muon spin relaxation follows a single exponential fitting above T, and the muon spin precession has been observed below T, as it is seen in typical ferromagnets. For the invar alloy the relaxation shows a stretched exponential behavior above T, and sharp decrease of the initial asymmetry without the precession has been observed below T,. These facts seem microscopically consistent with the existence of the inhomogeneous magnetic structure for Fe,,Ni,, below and above T,.