Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel
Abstract We report the deposition of monolayers and multilayers of {Cr10(OMe)20(O2CCMe3)10} wheels, hereafter {Cr10}, onto Au(111) and Cu(111) single‐crystal substrates, and their characterization combining scanning tunneling microscopy, X‐ray photoelectron spectroscopy, X‐ray absorption spectroscop...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-07-01
|
| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202300146 |
| _version_ | 1797676533371895808 |
|---|---|
| author | Elena Bartolomé Ludovica Ferrari Francesco Sedona Ana Arauzo Javier Rubín Javier Luzón Julia Herrero‐Albillos Mirco Panighel Aitor Mugarza Marzio Rancan Mauro Sambi Lidia Armelao Juan Bartolomé Fernando Bartolomé |
| author_facet | Elena Bartolomé Ludovica Ferrari Francesco Sedona Ana Arauzo Javier Rubín Javier Luzón Julia Herrero‐Albillos Mirco Panighel Aitor Mugarza Marzio Rancan Mauro Sambi Lidia Armelao Juan Bartolomé Fernando Bartolomé |
| author_sort | Elena Bartolomé |
| collection | DOAJ |
| description | Abstract We report the deposition of monolayers and multilayers of {Cr10(OMe)20(O2CCMe3)10} wheels, hereafter {Cr10}, onto Au(111) and Cu(111) single‐crystal substrates, and their characterization combining scanning tunneling microscopy, X‐ray photoelectron spectroscopy, X‐ray absorption spectroscopy, X‐ray natural linear dichroism, and X‐ray magnetic circular dichroism (XMCD). {Cr10} in bulk shows axial magnetic anisotropy and a cluster total spin S = 9 ground state, stemming from an interaction scheme of two semi‐crowns containing four Cr3+ ions interacting ferromagnetically, separated by two Cr3+ antiferromagnetically coupled. The one‐monolayer (1ML) samples of {Cr10} sublimated on Ag(111) and Cu(111) show slightly different applied magnetic field dependence of XMCD signal. The field‐dependence of the magnetization evolves from a lower curve for the 1ML {Cr10} samples to a curve resembling the bulk one as the number of layers is increased, as shown in a 14ML sample. Monte Carlo simulations allow rationalizing the magnetization curves of the 1ML samples in terms of a reduction of the cluster ground‐state total spin, S = 3 or S = 6, as a consequence of variations in the intra‐wheel coupling interactions induced by the on‐surface deposition. The sensitivity of the magnetic configuration of {Cr10} to minor distortions of the intramolecular conformation might be exploited to control magnetism by external stimuli for applications. |
| first_indexed | 2024-03-11T22:29:33Z |
| format | Article |
| id | doaj.art-1a5a08b03d754e58bb32893e4f1a3a98 |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-11T22:29:33Z |
| publishDate | 2023-07-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-1a5a08b03d754e58bb32893e4f1a3a982023-09-23T06:52:43ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-07-011020n/an/a10.1002/admi.202300146Surface Deposition Induced Reduction of the Ground State Spin in Cr10 WheelElena Bartolomé0Ludovica Ferrari1Francesco Sedona2Ana Arauzo3Javier Rubín4Javier Luzón5Julia Herrero‐Albillos6Mirco Panighel7Aitor Mugarza8Marzio Rancan9Mauro Sambi10Lidia Armelao11Juan Bartolomé12Fernando Bartolomé13Escola Universitària Salesiana de Sarrià (EUSS) Passeig Sant Joan Bosco 74 Barcelona 08017 SpainDipartimento di Scienze Chimiche Università di Padova Via Marzolo 1 Padova 35131 ItalyDipartimento di Scienze Chimiche Università di Padova Via Marzolo 1 Padova 35131 ItalyInstituto de Nanociencia y Materiales de Aragón (INMA) Universidad de Zaragoza – CSIC Pedro Cerbuna 12 Zaragoza 50009 SpainInstituto de Nanociencia y Materiales de Aragón (INMA) Universidad de Zaragoza – CSIC Pedro Cerbuna 12 Zaragoza 50009 SpainCentro Universitario de la Defensa Academia General Militar Zaragoza SpainInstituto de Nanociencia y Materiales de Aragón (INMA) Universidad de Zaragoza – CSIC Pedro Cerbuna 12 Zaragoza 50009 SpainCNR‐IOM Laboratorio TASC Basovizza Trieste 34149 ItalyCatalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB Barcelona 08193 SpainInstitute of Condensed Matter Chemistry and Technologies for Energy (ICMATE) National Research Council (CNR) c/o Department of Chemical Sciences University of Padova via F. Marzolo 1 Padova 35131 ItalyDipartimento di Scienze Chimiche Università di Padova Via Marzolo 1 Padova 35131 ItalyDipartimento di Scienze Chimiche Università di Padova Via Marzolo 1 Padova 35131 ItalyInstituto de Nanociencia y Materiales de Aragón (INMA) Universidad de Zaragoza – CSIC Pedro Cerbuna 12 Zaragoza 50009 SpainInstituto de Nanociencia y Materiales de Aragón (INMA) Universidad de Zaragoza – CSIC Pedro Cerbuna 12 Zaragoza 50009 SpainAbstract We report the deposition of monolayers and multilayers of {Cr10(OMe)20(O2CCMe3)10} wheels, hereafter {Cr10}, onto Au(111) and Cu(111) single‐crystal substrates, and their characterization combining scanning tunneling microscopy, X‐ray photoelectron spectroscopy, X‐ray absorption spectroscopy, X‐ray natural linear dichroism, and X‐ray magnetic circular dichroism (XMCD). {Cr10} in bulk shows axial magnetic anisotropy and a cluster total spin S = 9 ground state, stemming from an interaction scheme of two semi‐crowns containing four Cr3+ ions interacting ferromagnetically, separated by two Cr3+ antiferromagnetically coupled. The one‐monolayer (1ML) samples of {Cr10} sublimated on Ag(111) and Cu(111) show slightly different applied magnetic field dependence of XMCD signal. The field‐dependence of the magnetization evolves from a lower curve for the 1ML {Cr10} samples to a curve resembling the bulk one as the number of layers is increased, as shown in a 14ML sample. Monte Carlo simulations allow rationalizing the magnetization curves of the 1ML samples in terms of a reduction of the cluster ground‐state total spin, S = 3 or S = 6, as a consequence of variations in the intra‐wheel coupling interactions induced by the on‐surface deposition. The sensitivity of the magnetic configuration of {Cr10} to minor distortions of the intramolecular conformation might be exploited to control magnetism by external stimuli for applications.https://doi.org/10.1002/admi.202300146chromium wheelsscanning tunneling microscopysingle‐molecule magnetssublimated clusterssurface molecular magnetismX‐ray magnetic circular dichroism |
| spellingShingle | Elena Bartolomé Ludovica Ferrari Francesco Sedona Ana Arauzo Javier Rubín Javier Luzón Julia Herrero‐Albillos Mirco Panighel Aitor Mugarza Marzio Rancan Mauro Sambi Lidia Armelao Juan Bartolomé Fernando Bartolomé Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel Advanced Materials Interfaces chromium wheels scanning tunneling microscopy single‐molecule magnets sublimated clusters surface molecular magnetism X‐ray magnetic circular dichroism |
| title | Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel |
| title_full | Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel |
| title_fullStr | Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel |
| title_full_unstemmed | Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel |
| title_short | Surface Deposition Induced Reduction of the Ground State Spin in Cr10 Wheel |
| title_sort | surface deposition induced reduction of the ground state spin in cr10 wheel |
| topic | chromium wheels scanning tunneling microscopy single‐molecule magnets sublimated clusters surface molecular magnetism X‐ray magnetic circular dichroism |
| url | https://doi.org/10.1002/admi.202300146 |
| work_keys_str_mv | AT elenabartolome surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT ludovicaferrari surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT francescosedona surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT anaarauzo surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT javierrubin surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT javierluzon surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT juliaherreroalbillos surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT mircopanighel surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT aitormugarza surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT marziorancan surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT maurosambi surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT lidiaarmelao surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT juanbartolome surfacedepositioninducedreductionofthegroundstatespinincr10wheel AT fernandobartolome surfacedepositioninducedreductionofthegroundstatespinincr10wheel |