J ul 1 99 8 Thin - Film Trilayer Manganate Junctions
نویسنده
چکیده
Spin-dependent conductance across a manganate-barrier-manganate junction has recently been demonstrated. The junction is a La0.67Sr0.33MnO3-SrTiO3-La0.67 Sr0.33MnO3 trilayer device supporting current-perpendicular transport. Large magnetoresistance of up to a factor of five change was observed in these junctions at 4.2K in a relatively low field of the order of 100 Oe. Temperature and bias dependent studies revealed a complex junction interface structure whose materials physics has yet to be understood.
منابع مشابه
Ballistic electron magnetic microscopy: Imaging magnetic domains with nanometer resolution
A variation of ballistic electron emission microscopy has been developed to image magnetic structure in thin-film multilayers with nanometer resolution. In studies of nominally uncoupled Co/Cu/Co trilayer films, magnetic domains and domain-wall motion are readily observable with this technique. In the Co/Cu/Co trilayer system magnetic domains are found to occur on an ;500-nm-length scale and le...
متن کامل4 The generalised proximity effect model in superconducting bi - and trilayer films
This paper presents a general model for calculating the density of states and the Cooper pair potential in proximised superconducting biand trilayer films. It is valid for any kind of bilayer S1-S2, whatever the quality of the materials S1 and S2, the quality of the S1-S2 interface and the layer thicknesses. The trilayer model is valid for a thin S3 layer, whereas the other two layers have arbi...
متن کاملGrowth of Magnetic Tunnel Junctions
Three applications of ballistic electron microscopy are used to study, with nanometer-scale resolution, the magnetic and electronic properties of magnetic multilayer thin films and tunnel junctions. First, the capabilities of ballistic electron magnetic microscopy are demonstrated through an investigation of the switching behavior of continuous Ni80Fe20 /Cu/Co trilayer films in the presence of ...
متن کاملFinite size effects with variable range exchange coupling in thin-film Pd/Fe/Pd trilayers
The magnetic properties of thin-film Pd/Fe/Pd trilayers in which an embedded 1:5 Åthick ultrathin layer of Fe induces ferromagnetism in the surrounding Pd have been investigated. The thickness of the ferromagnetic trilayer is controlled by varying the thickness of the top Pd layer over a range from 8 to 56 Å. As the thickness of the top Pd layer decreases, or equivalently as the embedded Fe lay...
متن کاملAbsorptance of PbS quantum dots thin film deposited on trilayer MoS2
We have studied the optical absorptance of lead sulfide (PbS) quantum dot (QD) coated thin crystalline layered material (TCLM) experimentally and numerically. Starting with the synthesis, fabrication and characterizations, a sample of PbS QDs deposited on trilayer molybdenum disulphide (MoS2) thin film has been probed locally using a reflection spectrometer set-up. Since transmittance is needed...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1998