Orbital control of noncollinear magnetic order in nickelate heterostructures

Autor:	Frano, A., Schierle, E., Haverkort, M. W., Lu, Y., Wu, M., Blanco-Canosa, S., Nwankwo, U., Boris, A. V., Wochner, P., Cristiani, G., Habermeier, H. U., Logvenov, G., Hinkov, V., Benckiser, E., Weschke, E., Keimer, B.
Rok vydání:	2013
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Materials Science
Zdroj:	Phys. Rev. Lett. 111, 106804 (2013)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.111.106804
Popis:	We have used resonant x-ray diffraction to develop a detailed description of antiferromagnetic ordering in epitaxial superlattices based on two-unit-cell thick layers of the strongly correlated metal LaNiO3. We also report reference experiments on thin films of PrNiO3 and NdNiO3. The resulting data indicate a spiral state whose polarization plane can be controlled by adjusting the Ni d-orbital occupation via two independent mechanisms: epitaxial strain and quantum confinement of the valence electrons. The data are discussed in the light of recent theoretical predictions. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1304.1469 Zobrazit plný text záznamu View this record from Arxiv