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Field | Value |
Title | Magnetic and conversion electron mossbauer-spectroscopy studies in FE/TA multilayers |
Names |
SHRINGI, SN
PIRAMANAYAGAM, SN PRASAD, S VENKATRAMANJI, N PATNI, MJ KRISHNAN, R TESSIER, M |
Date Issued | 1993 (iso8601) |
Abstract | We have prepared Fe/Ta multilayers by rf sputtering. A small 1-cm2 chip of Fe-57 was placed on the Fe target. We studied the magnetization (M) and M-H loops and also carried out conversion electron Mossbauer spectroscopy (CEMS). The in-plane loops are rectangular with a lowest coercivity of 2.6 Oe. Magnetization studies indicate a dead Fe layer about 5 angstrom thick at each interface. CEMS spectra for samples with t(Fe) greater-than-or-equal-to 54 angstrom showed a typical six-line pattern, indicating the presence of bulk Fe. No other Fe sites could be detected. However, for t(Fe) = 24 angstrom, where almost 50% of Fe is nonmagnetic, CEMS spectra showed the presence of a strong paramagnetic doublet. |
Genre | Article; Proceedings Paper |
Topic | Films |
Identifier | JOURNAL OF APPLIED PHYSICS,73(10)6438-6440 |