Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor
We report the strong ferromagnetic order in van der Waals (vdW) layered SnS2 induced by cobalt substitution. The single-crystal Co-doped SnS2 grown by a self-flux method reveals a relatively high Curie temperature (TC) of ∼131 K with an in-plane magnetic easy axis and a large saturation magnetizatio...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2021-05-01
|
| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0048885 |
| _version_ | 1818863645555163136 |
|---|---|
| author | Houcine Bouzid Steven Rodan Kirandeep Singh Youngjo Jin Jinbao Jiang Duhee Yoon Hyun Yong Song Young Hee Lee |
| author_facet | Houcine Bouzid Steven Rodan Kirandeep Singh Youngjo Jin Jinbao Jiang Duhee Yoon Hyun Yong Song Young Hee Lee |
| author_sort | Houcine Bouzid |
| collection | DOAJ |
| description | We report the strong ferromagnetic order in van der Waals (vdW) layered SnS2 induced by cobalt substitution. The single-crystal Co-doped SnS2 grown by a self-flux method reveals a relatively high Curie temperature (TC) of ∼131 K with an in-plane magnetic easy axis and a large saturation magnetization of ∼0.65 emu g−1 for the 2 at. % Co concentration, which is two orders of magnitude larger than the previously reported value for transition-metal-doped SnS2. The average magnetic moment per Co atom, as high as 1.08 µB, is consistent with the calculated value based on density functional theory, i.e., 1 µB, indicating a negligible antiferromagnetic coupling between Co atoms. Magnetoresistance shows a change in sign from positive to negative, which further confirms the ferromagnetic order in Co-doped SnS2. Our s-p hybridized vdW layered SnS2 serves as a host semiconductor material to search for a suitable magnetic dopant with a high magnetic moment and room temperature TC for next-generation spintronics. |
| first_indexed | 2024-12-19T10:19:03Z |
| format | Article |
| id | doaj.art-43e37d97f097426e89afc04d926c2589 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-19T10:19:03Z |
| publishDate | 2021-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-43e37d97f097426e89afc04d926c25892022-12-21T20:26:08ZengAIP Publishing LLCAPL Materials2166-532X2021-05-0195051106051106-810.1063/5.0048885Enhanced magnetic moment with cobalt dopant in SnS2 semiconductorHoucine Bouzid0Steven Rodan1Kirandeep Singh2Youngjo Jin3Jinbao Jiang4Duhee Yoon5Hyun Yong Song6Young Hee Lee7Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaCenter for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon 16419, Republic of KoreaWe report the strong ferromagnetic order in van der Waals (vdW) layered SnS2 induced by cobalt substitution. The single-crystal Co-doped SnS2 grown by a self-flux method reveals a relatively high Curie temperature (TC) of ∼131 K with an in-plane magnetic easy axis and a large saturation magnetization of ∼0.65 emu g−1 for the 2 at. % Co concentration, which is two orders of magnitude larger than the previously reported value for transition-metal-doped SnS2. The average magnetic moment per Co atom, as high as 1.08 µB, is consistent with the calculated value based on density functional theory, i.e., 1 µB, indicating a negligible antiferromagnetic coupling between Co atoms. Magnetoresistance shows a change in sign from positive to negative, which further confirms the ferromagnetic order in Co-doped SnS2. Our s-p hybridized vdW layered SnS2 serves as a host semiconductor material to search for a suitable magnetic dopant with a high magnetic moment and room temperature TC for next-generation spintronics.http://dx.doi.org/10.1063/5.0048885 |
| spellingShingle | Houcine Bouzid Steven Rodan Kirandeep Singh Youngjo Jin Jinbao Jiang Duhee Yoon Hyun Yong Song Young Hee Lee Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor APL Materials |
| title | Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor |
| title_full | Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor |
| title_fullStr | Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor |
| title_full_unstemmed | Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor |
| title_short | Enhanced magnetic moment with cobalt dopant in SnS2 semiconductor |
| title_sort | enhanced magnetic moment with cobalt dopant in sns2 semiconductor |
| url | http://dx.doi.org/10.1063/5.0048885 |
| work_keys_str_mv | AT houcinebouzid enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT stevenrodan enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT kirandeepsingh enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT youngjojin enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT jinbaojiang enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT duheeyoon enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT hyunyongsong enhancedmagneticmomentwithcobaltdopantinsns2semiconductor AT youngheelee enhancedmagneticmomentwithcobaltdopantinsns2semiconductor |