Role of orbitally degenerate Mn(III) ions in magnetic bistability of Mn5-cyanide cluster: new prospects for design of single molecule magnets with high blocking temperatures

Palii Andrew; Ostrovsky Sergei M.; Klokishner Sophia I.; Tsukerblat Boris S.; Galan-Mascaros J; Berlinguette C.; Dunbar Kim

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PALII, Andrew, OSTROVSKY, Sergei M., KLOKISHNER, Sophia I., TSUKERBLAT, Boris S., GALAN-MASCAROS, J, BERLINGUETTE, C., DUNBAR, Kim. Role of orbitally degenerate Mn(III) ions in magnetic bistability of Mn5-cyanide cluster: new prospects for design of single molecule magnets with high blocking temperatures. In: Moldavian Journal of the Physical Sciences, 2005, nr. 1(4), pp. 25-29. ISSN 1810-648X.

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Moldavian Journal of the Physical Sciences

Numărul 1(4) / 2005 / ISSN 1810-648X /ISSNe 2537-6365

Role of orbitally degenerate Mn(III) ions in magnetic bistability of Mn5-cyanide cluster: new prospects for design of single molecule magnets with high blocking temperatures

Pag. 25-29

Palii Andrew¹, Ostrovsky Sergei M.¹, Klokishner Sophia I.¹, Tsukerblat Boris S.², Galan-Mascaros J³, Berlinguette C.³, Dunbar Kim³

¹ Institute of Applied Physics, Academy of Sciences of Moldova,
² Ben-Gurion University,
³ Texas A and M University

Disponibil în IBN: 14 decembrie 2013

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In this paper we report a new model aimed at the explanation of the magnetic properties of the trigonal bipyramidal cyanide cluster - [MnII (tmphen)2]3[MnIII (CN)6]2} (tmphen = 4,5,7,8-tetramethyl-1,10-phenantroline). The model explicitly takes into account the strong single-ion anisotropy associated with the unquenched orbital angular momenta of two Mn(III) ions, and satisfactory explains the observed temperature dependence of dc magnetic susceptibility. At the same time the model is compatible with firmly confirmed fact that the system represents single molecule magnet and provides the theoretical background for the design of new cyanide-based single molecule magnets with higher blocking temperatures.

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<title xml:lang='en'>Role of orbitally degenerate Mn(III) ions in magnetic bistability of Mn5-cyanide cluster: new prospects for design of single molecule magnets with high blocking temperatures</title>
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<publisher>Instrumentul Bibliometric National</publisher>
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<description xml:lang='en' descriptionType='Abstract'>In this paper we report a new model aimed at the explanation of the magnetic properties 

of  the  trigonal  bipyramidal  cyanide  cluster  - [MnII
 (tmphen)2]3[MnIII
(CN)6]2}  (tmphen  = 
4,5,7,8-tetramethyl-1,10-phenantroline).  The model  explicitly  takes  into  account  the  strong 
single-ion anisotropy associated with the unquenched orbital angular momenta of two Mn(III) 
ions,  and  satisfactory  explains  the  observed  temperature  dependence  of  dc  magnetic 
susceptibility. At  the same  time  the model  is compatible with  firmly confirmed  fact  that  the 
system  represents  single molecule magnet  and  provides  the  theoretical  background  for  the 
design of new cyanide-based single molecule magnets with higher blocking temperatures.  </description>
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