Long range triplet Josephson current and 0−π transitions in tunable domain walls
The order parameter of superconducting pairs penetrating an inhomogeneous magnetic material can acquire a long range triplet component (LRTC) with non-zero spin projection. This state has been predicted and generated in proximity systems and Josephson junctions. We show, using a realistic domain wal...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/16/9/093048 |
| _version_ | 1827873869594099712 |
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| author | Thomas E Baker Adam Richie-Halford Andreas Bill |
| author_facet | Thomas E Baker Adam Richie-Halford Andreas Bill |
| author_sort | Thomas E Baker |
| collection | DOAJ |
| description | The order parameter of superconducting pairs penetrating an inhomogeneous magnetic material can acquire a long range triplet component (LRTC) with non-zero spin projection. This state has been predicted and generated in proximity systems and Josephson junctions. We show, using a realistic domain wall of an exchange spring bilayer, how the LRTC emerges and can be tuned with the twisting of the magnetization. We also introduce a new kind of Josephson current reversal, the singlet-LRTC 0– π transition, that can be observed in one and the same system either by tuning the domain wall or by varying temperature. |
| first_indexed | 2024-03-12T16:43:15Z |
| format | Article |
| id | doaj.art-2c72d48a513f491cb1714af67f8798a2 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:43:15Z |
| publishDate | 2014-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2c72d48a513f491cb1714af67f8798a22023-08-08T14:19:34ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116909304810.1088/1367-2630/16/9/093048Long range triplet Josephson current and 0−π transitions in tunable domain wallsThomas E Baker0Adam Richie-Halford1Andreas Bill2Department of Physics & Astronomy , California State University Long Beach, Long Beach, CA 90840 USADepartment of Physics & Astronomy , California State University Long Beach, Long Beach, CA 90840 USADepartment of Physics & Astronomy , California State University Long Beach, Long Beach, CA 90840 USAThe order parameter of superconducting pairs penetrating an inhomogeneous magnetic material can acquire a long range triplet component (LRTC) with non-zero spin projection. This state has been predicted and generated in proximity systems and Josephson junctions. We show, using a realistic domain wall of an exchange spring bilayer, how the LRTC emerges and can be tuned with the twisting of the magnetization. We also introduce a new kind of Josephson current reversal, the singlet-LRTC 0– π transition, that can be observed in one and the same system either by tuning the domain wall or by varying temperature.https://doi.org/10.1088/1367-2630/16/9/093048magnetic Josephson junctionlong range triplet componentmagnetic domain wallcurrent reversalsinglet-triplet mixing74.50.+r |
| spellingShingle | Thomas E Baker Adam Richie-Halford Andreas Bill Long range triplet Josephson current and 0−π transitions in tunable domain walls New Journal of Physics magnetic Josephson junction long range triplet component magnetic domain wall current reversal singlet-triplet mixing 74.50.+r |
| title | Long range triplet Josephson current and 0−π transitions in tunable domain walls |
| title_full | Long range triplet Josephson current and 0−π transitions in tunable domain walls |
| title_fullStr | Long range triplet Josephson current and 0−π transitions in tunable domain walls |
| title_full_unstemmed | Long range triplet Josephson current and 0−π transitions in tunable domain walls |
| title_short | Long range triplet Josephson current and 0−π transitions in tunable domain walls |
| title_sort | long range triplet josephson current and 0 π transitions in tunable domain walls |
| topic | magnetic Josephson junction long range triplet component magnetic domain wall current reversal singlet-triplet mixing 74.50.+r |
| url | https://doi.org/10.1088/1367-2630/16/9/093048 |
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