學術產出-Periodical Articles

Article View/Open

Publication Export

Google ScholarTM

政大圖書館

Citation Infomation

題名 Configuration-dependent magnetism from two manganese atoms on Cu(001)
作者 楊志開
Yang, Chih-Kai
貢獻者 應物所
日期 2002
上傳時間 20-Apr-2020 16:02:31 (UTC+8)
摘要 Our calculations, based on first principles, have shown that magnetism from two manganese atoms embedded in the surface layer of Cu(001) depends on their relative positions. If the two Mn atoms are nearest neighbors, the magnetic moment for either atom is only 0.49µB. If separated by one lattice constant, each of the two Mn atoms has a larger moment of 0.66µB and the surrounding Cu atoms also acquire substantial moments. Finally, when a Cu atom is interposed between the two Mn atoms, moment for each Mn atom increases to 3.71µB, about the value of a single Mn impurity in the surface layer. The results indicate that a strong d–d interaction between the Mn and Cu atoms and a weaker interaction between the Mn atoms are behind the shifting of energy levels for the
關聯 Modern Physics Letters B, Vol.16, No.7, pp.217-223
資料類型 article
DOI https://doi.org/10.1142/S0217984902003701
dc.contributor 應物所
dc.creator (作者) 楊志開
dc.creator (作者) Yang, Chih-Kai
dc.date (日期) 2002
dc.date.accessioned 20-Apr-2020 16:02:31 (UTC+8)-
dc.date.available 20-Apr-2020 16:02:31 (UTC+8)-
dc.date.issued (上傳時間) 20-Apr-2020 16:02:31 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/129324-
dc.description.abstract (摘要) Our calculations, based on first principles, have shown that magnetism from two manganese atoms embedded in the surface layer of Cu(001) depends on their relative positions. If the two Mn atoms are nearest neighbors, the magnetic moment for either atom is only 0.49µB. If separated by one lattice constant, each of the two Mn atoms has a larger moment of 0.66µB and the surrounding Cu atoms also acquire substantial moments. Finally, when a Cu atom is interposed between the two Mn atoms, moment for each Mn atom increases to 3.71µB, about the value of a single Mn impurity in the surface layer. The results indicate that a strong d–d interaction between the Mn and Cu atoms and a weaker interaction between the Mn atoms are behind the shifting of energy levels for the
dc.format.extent 196197 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Modern Physics Letters B, Vol.16, No.7, pp.217-223
dc.title (題名) Configuration-dependent magnetism from two manganese atoms on Cu(001)
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1142/S0217984902003701
dc.doi.uri (DOI) https://doi.org/10.1142/S0217984902003701