Long-range magnetic ordering in a metal–organic framework based on octanuclear nickel(ii) clusters

2017 ◽  
Vol 46 (38) ◽  
pp. 12771-12774 ◽  
Author(s):  
Jun-Li Wang ◽  
Yan Bai ◽  
Hui Pan ◽  
Guang-Shui Zheng ◽  
Dong-Bin Dang
Keyword(s):  
Long Range ◽  
Metal Organic Framework ◽  
Magnetic Ordering ◽  
Metal Organic ◽  
Organic Framework

A beautiful 3D nickel(ii)–organic framework possessing one type of rare polyhedral cage has been synthesized based on H3BTC and bpp ligands. Long-range magnetic ordering is observed in the framework.

Long-range magnetic order in the porous metal–organic framework Ni(pyrazine)[Pt(CN)4]

2017 ◽  
Vol 19 (43) ◽  
pp. 29084-29091
Author(s):  
J. Alberto Rodríguez-Velamazán ◽  
Olivier Roubeau ◽  
Roberta Poloni ◽  
Elsa Lhotel ◽  
Elías Palacios ◽  
...  
Keyword(s):  
Long Range ◽  
Coordination Compounds ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Magnetic Ordering ◽  
Porous Metal ◽  
Range Magnetic Order ◽  
Metal Organic ◽  
Long Range Magnetic Order ◽  
Organic Framework

Long-range magnetic ordering is demonstrated in {Ni(pyrazine)[Pt(CN)4]}, which opens new perspectives for multifunctionality in this class of porous coordination compounds.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

Long-Range Exciton Transport in Perovskite–Metal Organic Framework Solid Composites

2020 ◽  
Vol 11 (21) ◽  
pp. 9045-9050
Author(s):  
Qi Sun ◽  
Zixi Yin ◽  
Shiping Wang ◽  
Chunyi Zhao ◽  
Jing Leng ◽  
...  
Keyword(s):  
Long Range ◽  
Metal Organic Framework ◽  
Exciton Transport ◽  
Metal Organic ◽  
Organic Framework ◽  
Solid Composites

scholarly journals Magnetic ordering through itinerant ferromagnetism in a metal–organic framework

2021 ◽  
Author(s):  
Jesse G. Park ◽  
Brianna A. Collins ◽  
Lucy E. Darago ◽  
Tomče Runčevski ◽  
Michael E. Ziebel ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Magnetic Ordering ◽  
Itinerant Ferromagnetism ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

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