Colossal magnetoresistance in La-Y-Ca-Mn-O films

L. H. Chen; T. H. Tiefel; S. Jin; T. T.M. Palstra; R. Raraesh; C. Kwon

doi:10.1109/20.539120

Colossal magnetoresistance in La-Y-Ca-Mn-O films

L. H. Chen^*, T. H. Tiefel, S. Jin, T. T.M. Palstra, R. Raraesh, C. Kwon

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Magnetoresistance behavior of La_0.60 Y_0.07CaMnO_x thin films epitaxially grown on LaAlO₃ has been investigated. The films exhibit colossal magnetoresistance with the MR ratio in excess of 10⁸% at ∼60K, H = 7T, which is the highest ever reported for thin film manganites. The partial substitution of La³⁺ ions with much smaller Y³⁺ ions results in more than an order of magnitude improvement in MR as compared to the undoped La-Ca-Mn-O material, both in bulk and thin film form. The La-Y-Ca-Mn-O films exhibit a strong dependence of magneto-resistance on film thickness with the maximum MR occurring at a film thickness of ∼1000Å.

Original language	English
Pages (from-to)	4692-4694
Number of pages	3
Journal	IEEE transactions on magnetics
Volume	32
Issue number	5 PART 2
DOIs	https://doi.org/10.1109/20.539120
Publication status	Published - 1 Dec 1996
Externally published	Yes

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title = "Colossal magnetoresistance in La-Y-Ca-Mn-O films",

abstract = "Magnetoresistance behavior of La0.60 Y0.07CaMnOx thin films epitaxially grown on LaAlO3 has been investigated. The films exhibit colossal magnetoresistance with the MR ratio in excess of 108% at ∼60K, H = 7T, which is the highest ever reported for thin film manganites. The partial substitution of La3+ ions with much smaller Y3+ ions results in more than an order of magnitude improvement in MR as compared to the undoped La-Ca-Mn-O material, both in bulk and thin film form. The La-Y-Ca-Mn-O films exhibit a strong dependence of magneto-resistance on film thickness with the maximum MR occurring at a film thickness of ∼1000{\AA}.",

author = "Chen, {L. H.} and Tiefel, {T. H.} and S. Jin and Palstra, {T. T.M.} and R. Raraesh and C. Kwon",

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T1 - Colossal magnetoresistance in La-Y-Ca-Mn-O films

AU - Chen, L. H.

AU - Tiefel, T. H.

AU - Jin, S.

AU - Palstra, T. T.M.

AU - Raraesh, R.

AU - Kwon, C.

PY - 1996/12/1

Y1 - 1996/12/1

N2 - Magnetoresistance behavior of La0.60 Y0.07CaMnOx thin films epitaxially grown on LaAlO3 has been investigated. The films exhibit colossal magnetoresistance with the MR ratio in excess of 108% at ∼60K, H = 7T, which is the highest ever reported for thin film manganites. The partial substitution of La3+ ions with much smaller Y3+ ions results in more than an order of magnitude improvement in MR as compared to the undoped La-Ca-Mn-O material, both in bulk and thin film form. The La-Y-Ca-Mn-O films exhibit a strong dependence of magneto-resistance on film thickness with the maximum MR occurring at a film thickness of ∼1000Å.

AB - Magnetoresistance behavior of La0.60 Y0.07CaMnOx thin films epitaxially grown on LaAlO3 has been investigated. The films exhibit colossal magnetoresistance with the MR ratio in excess of 108% at ∼60K, H = 7T, which is the highest ever reported for thin film manganites. The partial substitution of La3+ ions with much smaller Y3+ ions results in more than an order of magnitude improvement in MR as compared to the undoped La-Ca-Mn-O material, both in bulk and thin film form. The La-Y-Ca-Mn-O films exhibit a strong dependence of magneto-resistance on film thickness with the maximum MR occurring at a film thickness of ∼1000Å.

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DO - 10.1109/20.539120

M3 - Article

AN - SCOPUS:0030247519

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JO - IEEE transactions on magnetics

JF - IEEE transactions on magnetics

IS - 5 PART 2

ER -

Colossal magnetoresistance in La-Y-Ca-Mn-O films

Abstract

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