Ferromagnetic order in a Fe(110) monolayer on W(110) by Mössbauer spectroscopy.

摘要: Ferromagnetic order in Fe(110) monolayers on W(110) was analyzed with use of conversion electron M\"ossbauer spectroscopy. The Ag-coated monolayer is ferromagnetic up to ${\mathrm{T}}_{\mathrm{C}}$(1)=296 K=0.28${\mathrm{T}}_{\mathrm{C}}$(\ensuremath{\infty}). gross shape ${\mathrm{B}}_{\mathrm{hf}(\mathrm{T}}$) resembles that bulk material. ${\mathrm{B}}_{\mathrm{hf}(0}$) reduced 11.9\ifmmode\pm\else\textpm\fi{}0.3 T. In the critical region 275 K\ensuremath{\le}T\ensuremath{\le}295 K, a continuous transition from magnetic nonmagnetic component takes place. For uncoated monolayer, ground-state hyperfine field and Curie temperature are ${\mathrm{B}}_{\mathrm{hf}(0)=10\ifmmode\pm\else\textpm\fi{}1}$ T ${\mathrm{T}}_{\mathrm{C}}$(1)=210 K=0.20${\mathrm{T}}_{\mathrm{C}}$(\ensuremath{\infty}), respectively.