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Siegert, Benjamin ; Donarini, Andrea ; Grifoni, Milena

Nonequilibrium spin crossover in copper phthalocyanine

Article

Siegert, Benjamin, Donarini, Andrea and Grifoni, Milena (2016) Nonequilibrium spin crossover in copper phthalocyanine. Physical Review B (PRB) 93, 121406(R).

DOI to cite this document: 10.5283/epub.33826


Abstract

We demonstrate the nonequilibrium tip induced control of the spin state of copper phthalocyanine on an insulator coated substrate. We find that, under the condition of energetic proximity of many-body neutral excited states to the anionic ground state, the system can undergo a population inversion towards these excited states. The resulting state of the system is accompanied by a change in the ...

We demonstrate the nonequilibrium tip induced control of the spin state of copper phthalocyanine on an insulator coated substrate. We find that, under the condition of energetic proximity of many-body neutral excited states to the anionic ground state, the system can undergo a population inversion towards these excited states. The resulting state of the system is accompanied by a change in the total spin quantum number. Experimental signatures of the crossover are the appearance of additional nodal planes in the topographical scanning tunneling microscopy images as well as a strong suppression of the current near the center of the molecule. The robustness of the effect against moderate charge conserving relaxation processes has also been tested.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review B (PRB)
PublisherAMER PHYSICAL SOC
Open Access TypeDue to SHERPA/RoMEO
Place of PublicationCOLLEGE PK
Volume93
Page Range121406(R)
Date2016
Date of publication31 May 2016 08:32
InstitutionsPhysics > Institute of Theroretical Physics
Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
Identification Number
ValueType
10.1103/PhysRevB.93.121406DOI
KeywordsSINGLE-MOLECULE JUNCTIONS; MAGNETIC-ANISOTROPY; STATES;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-338266
Item ID33826

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