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- Title
Pulsed laser deposition of perovskite La[sub 0.5] Sr[sub 0.5] MnO[sub 3] /La[sub 0.7] Sr[sub 0.3] CoO[sub 3] multilayers and their magnetotransport properties.
- Authors
Liu, J.-M.; Huang, Q.; Li, J.; Ong, C.K.; Liu, Z.G.
- Abstract
Abstract. The perovskite La[sub 0.5]Sr[sub 0.5]MnO [sub 3-sigma]/La[sub 0.7]Sr[sub 0.3]CoO[sub 3-sigma] (LSMO/LSCO) bilayers and LSMO/LSCO/LSMO trilayers are fabricated by pulsed laser deposition and their magnetic and magnetoresistive properties are investigated. The "waist"-like magnetic hysteresis tot both the bilayer and trilayer is explained in terms of the inter-layer exchange coupling model based on the large difference in coercivity between LSCO and LSMO layers. The shrink of hysteresis with temperature is attributed to the temperature dependence of the magnetic crystalline anisotropy and conduction band width W. We observe smoothed remnant resistance of the multilayers over a rather wide temperature range (>100 K), while the magnetoresistance (MR) is not seriously damaged.
- Subjects
PEROVSKITE; PULSED laser deposition; ANISOTROPY; MAGNETORESISTANCE
- Publication
Applied Physics A: Materials Science & Processing, 1999, Vol 69, Issue 7, pS663
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s003390051500