Slowing magnetic relaxation with open-shell diluents
Summary: Strategies for slowing magnetic relaxation via local environmental design are vital for developing next-generation spin-based technologies (e.g., quantum information processing). Herein, we demonstrate a technique to do so via chemical design of a local magnetic environment. We show that em...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Cell Reports Physical Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666386422000728 |
| _version_ | 1819079057615093760 |
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| author | Ian P. Moseley Christopher P. Ard Joseph A. DiVerdi Andrew Ozarowski Hua Chen Joseph M. Zadrozny |
| author_facet | Ian P. Moseley Christopher P. Ard Joseph A. DiVerdi Andrew Ozarowski Hua Chen Joseph M. Zadrozny |
| author_sort | Ian P. Moseley |
| collection | DOAJ |
| description | Summary: Strategies for slowing magnetic relaxation via local environmental design are vital for developing next-generation spin-based technologies (e.g., quantum information processing). Herein, we demonstrate a technique to do so via chemical design of a local magnetic environment. We show that embedding the open-shell complex (Ph4P)2[Co(SPh)4] in solid-state matrices of the isostructural, open-shell species (Ph4P)2[M(SPh)4] (M = Ni2+, S = 1; M = Fe2+, S = 2; M = Mn2+, S = 5/2) will slow magnetic relaxation for the embedded [Co(SPh)4]2– ion by three orders of magnitude. Magnetometry, electron paramagnetic resonance (EPR), and computational analyses reveal that integer spin and large, positive zero-field splitting (D) values for the diluent produce a quiet, local magnetic field that slows relaxation rates for the embedded Co molecules. These results will enable the investigation of magnetic systems for which strictly diamagnetic congeners are either synthetically inaccessible or are not isostructural. |
| first_indexed | 2024-12-21T19:22:56Z |
| format | Article |
| id | doaj.art-6a06770b2f3442a09c60a24d5227b714 |
| institution | Directory Open Access Journal |
| issn | 2666-3864 |
| language | English |
| last_indexed | 2024-12-21T19:22:56Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cell Reports Physical Science |
| spelling | doaj.art-6a06770b2f3442a09c60a24d5227b7142022-12-21T18:52:54ZengElsevierCell Reports Physical Science2666-38642022-03-0133100802Slowing magnetic relaxation with open-shell diluentsIan P. Moseley0Christopher P. Ard1Joseph A. DiVerdi2Andrew Ozarowski3Hua Chen4Joseph M. Zadrozny5Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USADepartment of Physics, Colorado State University, Fort Collins, CO 80523, USADepartment of Chemistry, Colorado State University, Fort Collins, CO 80523, USANational High Magnetic Field Laboratory, Tallahassee, FL 32310, USADepartment of Physics, Colorado State University, Fort Collins, CO 80523, USA; School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, USADepartment of Chemistry, Colorado State University, Fort Collins, CO 80523, USA; Corresponding authorSummary: Strategies for slowing magnetic relaxation via local environmental design are vital for developing next-generation spin-based technologies (e.g., quantum information processing). Herein, we demonstrate a technique to do so via chemical design of a local magnetic environment. We show that embedding the open-shell complex (Ph4P)2[Co(SPh)4] in solid-state matrices of the isostructural, open-shell species (Ph4P)2[M(SPh)4] (M = Ni2+, S = 1; M = Fe2+, S = 2; M = Mn2+, S = 5/2) will slow magnetic relaxation for the embedded [Co(SPh)4]2– ion by three orders of magnitude. Magnetometry, electron paramagnetic resonance (EPR), and computational analyses reveal that integer spin and large, positive zero-field splitting (D) values for the diluent produce a quiet, local magnetic field that slows relaxation rates for the embedded Co molecules. These results will enable the investigation of magnetic systems for which strictly diamagnetic congeners are either synthetically inaccessible or are not isostructural.http://www.sciencedirect.com/science/article/pii/S2666386422000728molecular magnetismmagnetic relaxationcobaltcoordination chemistryquantum tunnelingdilution |
| spellingShingle | Ian P. Moseley Christopher P. Ard Joseph A. DiVerdi Andrew Ozarowski Hua Chen Joseph M. Zadrozny Slowing magnetic relaxation with open-shell diluents Cell Reports Physical Science molecular magnetism magnetic relaxation cobalt coordination chemistry quantum tunneling dilution |
| title | Slowing magnetic relaxation with open-shell diluents |
| title_full | Slowing magnetic relaxation with open-shell diluents |
| title_fullStr | Slowing magnetic relaxation with open-shell diluents |
| title_full_unstemmed | Slowing magnetic relaxation with open-shell diluents |
| title_short | Slowing magnetic relaxation with open-shell diluents |
| title_sort | slowing magnetic relaxation with open shell diluents |
| topic | molecular magnetism magnetic relaxation cobalt coordination chemistry quantum tunneling dilution |
| url | http://www.sciencedirect.com/science/article/pii/S2666386422000728 |
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