Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO3

Autor:	Ishiwata, S., Tokunaga, M., Kaneko, Y., Okuyama, D., Tokunaga, Y., Wakimoto, S., Kakurai, K., Arima, T., Taguchi, Y., Tokura, Y.
Rok vydání:	2011
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.84.054427
Popis:	A helical spin texture is of great current interest for a host of novel spin-dependent transport phenomena. We report a rich variety of nontrivial, helimagnetic phases in the simple cubic perovskite SrFeO3 under magnetic fields up to 42 T. Magnetic and resistivity measurements revealed that the proper-screw spin phase proposed for SrFeO3 can be subdivided into at least five kinds of ordered phases. Near the multicritical point, an unconventional anomalous Hall effect was found to show up and was interpreted as due to a possible long-period noncoplanar spin texture with scalar spin chirality. Comment: 5 pages, 5 figures, Physical Review B in press
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1107.5184 Zobrazit plný text záznamu View this record from Arxiv