High‐ T C Interfacial Ferromagnetism in SrMnO 3 /LaMnO 3 Superlattices

A ug 2 00 4 Interfacial strain measurements in SrRuO 3 / SrMnO 3 magnetic multilayers

Interfacial ferromagnetism and exchange bias in CaRuO3/CaMnO3 superlattices.

We have found ferromagnetism in epitaxially grown superlattices of CaRuO(3)/CaMnO(3) that arises in one unit cell at the interface. Scanning transmission electron microscopy and electron energy loss spectroscopy indicate that the difference in magnitude of the Mn valence states between the center of the CaMnO(3) layer and the interface region is consistent with double exchange interaction among...

Electric Field Control of Interfacial Ferromagnetism in CaMnO_{3}/CaRuO_{3} Heterostructures.

New mechanisms for achieving direct electric field control of ferromagnetism are highly desirable in the development of functional magnetic interfaces. To that end, we have probed the electric field dependence of the emergent ferromagnetic layer at CaRuO_{3}/CaMnO_{3} interfaces in bilayers fabricated on SrTiO_{3}. Using polarized neutron reflectometry, we are able to detect the ferromagnetic s...

Interface E ects on the Vibrational Properties of 3 C { InN / 3 C { AlN Superlattices

Calculation of the Raman spectra of zinc{blende InN/AlN superlattices were carried out assuming the existence of an interface region with thickness Æ varying from zero to three monolayers. Frequency shifts up to 80 cm 1 were observed for some of the optical frequencies when Æ = 3. Many peaks appearing at the low frequency side, shift toward the center position of the spectrum. As a consequence,...

Quantum many-body interactions in digital oxide superlattices.

Controlling the electronic properties of interfaces has enormous scientific and technological implications and has been recently extended from semiconductors to complex oxides that host emergent ground states not present in the parent materials. These oxide interfaces present a fundamentally new opportunity where, instead of conventional bandgap engineering, the electronic and magnetic properti...