Mallik, R. ; Sampathkumaran, E. V. ; Paulose, P. L. (1997) Large positive magnetoresistance at low temperatures in a ferromagnetic natural multilayer, LaMn2Ge2 Applied Physics Letters, 71 (16). pp. 2385-2387. ISSN 0003-6951
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Official URL: http://link.aip.org/link/?APPLAB/71/2385/1
Related URL: http://dx.doi.org/10.1063/1.120036
Abstract
The results of magnetoresistance measurements on a naturally occurring multilayer LaMn2Ge2, which is ferromagnetic below 326 K, are reported. The magnitude of magnetoresistance is found to be positive below 70 K gradually increasing to an unusually large value (nearly 100%) at 4.2 K in the presence of a field of 70 kOe as the temperature is lowered, similar to the recent observations by Verbanck, Temst, Mae, Schad, Van Bael, Moshchalkov, and Bruynseraede [Appl. Phys. Lett. 70, 1477 (1997)] in Cr/Ag/Cr trilayers. The positive sign of magnetoresistance for a ferromagnet is unexpected and possible explanations are offered.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Lanthanum Alloys; Manganese Alloys; Germanium Alloys; Ferromagnetic Materials; Giant Magnetoresistance; Magnetic Multilayers |
| ID Code: | 45633 |
| Deposited On: | 29 Jun 2011 03:22 |
| Last Modified: | 18 May 2016 01:50 |
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