Two-dimensional Induced Ferromagnetism
arXiv:cond-mat/0302516 · doi:10.1103/PhysRevB.68.174427
Abstract
Magnetic properties of materials confined to nanometer length scales are providing important information regarding low dimensional physics. Using gadolinium based Langmuir-Blodgett films, we demonstrate that two-dimensional ferromagnetic order can be induced by applying magnetic field along the in-plane (perpendicular to growth) direction. Field dependent exchange coupling is evident in the in-plane magnetization data that exhibit absence of hysteresis loop and show reduction in field required to obtain saturation in measured moment with decreasing temperature.
4 pages, 3 postscript figures, corrected paper format