TY - GEN AU - Madsen, D E AU - Cervera Gontard, Lionel AU - Kasama, Takeshi AU - Dunin-Borkowski, Rafal E AU - Koch, C B AU - Hansen, M F AU - Frandsen, C AU - Mørup, S A4 - Física de la Materia Condensada PY - 2009 SN - 0953-8984 UR - http://hdl.handle.net/10498/35022 AB - Mo¨ssbauer spectra of antiferromagnetic goethite (α-FeOOH) particles usually show an asymmetric line broadening, which increases with increasing temperature, although the magnetic anisotropy is expected to be so large that magnetic relaxation effects... LA - eng PB - IOP TI - Magnetic fluctuations in nanosized goethite (α-FeOOH) grains DO - 10.1088/0953-8984/21/1/016007 ER -