Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure
The exchange coupling between two ferromagnetic thin films, one with magnetically hard and the other with soft phases, separated by a thin non-magnetic layer, is studied. Nd-Fe-B/Ti/Fe thin film heterostructures were fabricated using DC magnetron sputtering on Si substrates, which were heated in sit...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/14/2/119 |
| _version_ | 1797298565375066112 |
|---|---|
| author | Saeed Yazdani Jared Phillips Aaron Mosey Thomas Bsaibes Ricardo Decca Ruihua Cheng |
| author_facet | Saeed Yazdani Jared Phillips Aaron Mosey Thomas Bsaibes Ricardo Decca Ruihua Cheng |
| author_sort | Saeed Yazdani |
| collection | DOAJ |
| description | The exchange coupling between two ferromagnetic thin films, one with magnetically hard and the other with soft phases, separated by a thin non-magnetic layer, is studied. Nd-Fe-B/Ti/Fe thin film heterostructures were fabricated using DC magnetron sputtering on Si substrates, which were heated in situ at 650 °C using a house-built vacuum-compatible heater. The effect of the thickness of the Ti buffer layer and the annealing temperature on the formation of various phases of Nd-Fe-B was investigated. The effect of the thickness of the non-magnetic Ti spacer layer on the exchange coupling strength between the hard phase Nd-Fe-B ferromagnetic thin layer and the soft phase transition metal Fe layer was experimentally investigated. Hysteresis loops of multilayer thin films indicate an antiferromagnetic coupling was observed when the thickness of the spacer layer was 2 nm. This is within the range of an antiferromagnetic coupling calculation based on RKKY theory predictions. |
| first_indexed | 2024-03-07T22:36:41Z |
| format | Article |
| id | doaj.art-9bee6b205de94c2baaeffdcc5c963bf0 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-07T22:36:41Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-9bee6b205de94c2baaeffdcc5c963bf02024-02-23T15:13:07ZengMDPI AGCrystals2073-43522024-01-0114211910.3390/cryst14020119Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered StructureSaeed Yazdani0Jared Phillips1Aaron Mosey2Thomas Bsaibes3Ricardo Decca4Ruihua Cheng5Department of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USADepartment of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USADepartment of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USADepartment of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USADepartment of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USADepartment of Physics, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USAThe exchange coupling between two ferromagnetic thin films, one with magnetically hard and the other with soft phases, separated by a thin non-magnetic layer, is studied. Nd-Fe-B/Ti/Fe thin film heterostructures were fabricated using DC magnetron sputtering on Si substrates, which were heated in situ at 650 °C using a house-built vacuum-compatible heater. The effect of the thickness of the Ti buffer layer and the annealing temperature on the formation of various phases of Nd-Fe-B was investigated. The effect of the thickness of the non-magnetic Ti spacer layer on the exchange coupling strength between the hard phase Nd-Fe-B ferromagnetic thin layer and the soft phase transition metal Fe layer was experimentally investigated. Hysteresis loops of multilayer thin films indicate an antiferromagnetic coupling was observed when the thickness of the spacer layer was 2 nm. This is within the range of an antiferromagnetic coupling calculation based on RKKY theory predictions.https://www.mdpi.com/2073-4352/14/2/119exchange couplingthin filmsRKKY interactionantiferromagnetic coupling |
| spellingShingle | Saeed Yazdani Jared Phillips Aaron Mosey Thomas Bsaibes Ricardo Decca Ruihua Cheng Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure Crystals exchange coupling thin films RKKY interaction antiferromagnetic coupling |
| title | Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure |
| title_full | Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure |
| title_fullStr | Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure |
| title_full_unstemmed | Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure |
| title_short | Study of the Long-Range Exchange Coupling in Nd-Fe-B/Ti/Fe Multilayered Structure |
| title_sort | study of the long range exchange coupling in nd fe b ti fe multilayered structure |
| topic | exchange coupling thin films RKKY interaction antiferromagnetic coupling |
| url | https://www.mdpi.com/2073-4352/14/2/119 |
| work_keys_str_mv | AT saeedyazdani studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure AT jaredphillips studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure AT aaronmosey studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure AT thomasbsaibes studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure AT ricardodecca studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure AT ruihuacheng studyofthelongrangeexchangecouplinginndfebtifemultilayeredstructure |