TY - JOUR
T1 - Local moment formation and magnetic coupling of Mn dopants in Bi2Se3: A low-temperature ferromagnetic resonance study
AU - Savchenko, D.
AU - Tarasenko, R.
AU - Vališka, M.
AU - Kopeček, J.
AU - Fekete, Ladislav
AU - Carva, K.
AU - Holy, Vaclav
AU - Springholz, Gunther
AU - Sechovský, V.
AU - Honolka, J.
PY - 2018/5
Y1 - 2018/5
N2 - We compare the magnetic and electronic configuration of single Mn atoms in molecular beam epitaxy (MBE) grown Bi2Se3 thin films, focusing on electron paramagnetic (ferromagnetic) resonance (EPR and FMR, respectively) and superconducting quantum interference device (SQUID) techniques. X-ray diffraction (XRD) and electron backscatter diffraction (EBSD) reveal the expected increase of disorder with increasing concentration of magnetic guest atoms, however, Kikuchi patterns show that disorder consists majorly of μm-scale 60° twin domains in the hexagonal Bi2Se3 structure, which are promoted by the presence of single unclustered Mn impurities.
AB - We compare the magnetic and electronic configuration of single Mn atoms in molecular beam epitaxy (MBE) grown Bi2Se3 thin films, focusing on electron paramagnetic (ferromagnetic) resonance (EPR and FMR, respectively) and superconducting quantum interference device (SQUID) techniques. X-ray diffraction (XRD) and electron backscatter diffraction (EBSD) reveal the expected increase of disorder with increasing concentration of magnetic guest atoms, however, Kikuchi patterns show that disorder consists majorly of μm-scale 60° twin domains in the hexagonal Bi2Se3 structure, which are promoted by the presence of single unclustered Mn impurities.
UR - https://www.sciencedirect.com/science/article/pii/S0921452617307408
U2 - 10.1016/j.physb.2017.10.016
DO - 10.1016/j.physb.2017.10.016
M3 - Article
SN - 0921-4526
VL - 536
SP - 604
EP - 613
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -