2004/09/16 by I. Tsukada · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Colossal magnetoresistance #Condensed matter physics #Crystal structure #Crystallography #Epitaxy #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Magnetoresistance #Materials science #Nanotechnology #Physics #Physics of Superconductivity and Magnetism #Tetragonal crystal system #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.70.174520
6 pages, 6 figures, to be published in Physical Review B
arxiv created 2004/09/16 · openalex publication_date 2004/11/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The weak ferromagnetism of La1.99Sr0.01CuO4 epitaxial thin films is investigated using magnetoresistance measurement. While a step-like negative magnetoresistance associated with the weak ferromagnetic transition is clearly observed in the films grown on YAlO3(001), it is notably suppressed in the films grown on SrTiO3(100) and (LaAlO3)0.3(SrAl0.5Ta0.5O3)0.7(100), and almost disappears in films grown on LaSrAlO4(001). The strong suppression of the step-like magnetoresistance provides evidence that the CuO2 planes are much less corrugated in thin films grown on tetragonal substrates, particularly on LaSrAlO4(001), than in bulk crystals.