Spectroscopic and topographic study of LCMO thin films using low-temperature STM

The manganites are one of a number of materials whose magnetic properties may be particularly useful because they appear to be 100% spin-polarised metals at low temperature. Recently, it has been demonstrated that tunnelling experiments can access the spin-split density of states in these materials....

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Published inJournal of magnetism and magnetic materials Vol. 226; pp. 2007 - 2008
Main Authors Hudson, P.M, Cohen, L.F, Yates, K.A, Damay, F, MacManus-Driscoll, J, Mathur, N, Blamire, M, Pakes, C.I, Josephs-Franks, P.W
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2001
Subjects
Magnetoresistance
Phase transitions—metal–insulator
Scanning tunnelling microscopy
Spin-polarised
Spin-polarised
Phase transitions—metal–insulator
Magnetoresistance
Scanning tunnelling microscopy
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Summary:The manganites are one of a number of materials whose magnetic properties may be particularly useful because they appear to be 100% spin-polarised metals at low temperature. Recently, it has been demonstrated that tunnelling experiments can access the spin-split density of states in these materials. In the present work, topographic and spectroscopic information was obtained on thin-film La 1− x Ca x MnO 3 material using a low-temperature UHV scanning tunnelling microscope. This paper will outline the results of this study and in particular the variation in observed features on the I– V curves as a function of surface treatment.
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ISSN:0304-8853
DOI:10.1016/S0304-8853(00)00679-X