Knappschneider, Arno ; Litterscheid, Christian ; Dzivenko, Dmytro ; Kurzman, Joshua A. ; Seshadri, Ram ; Wagner, Norbert ; Beck, Johannes ; Riedel, Ralf ; Albert, Barbara (2013):
Possible Superhardness of CrB4.
In: Inorganic Chemistry, 52 (2), pp. 540-542. ACS Publications, ISSN 0020-1669,
[Article]
Abstract
Chromium tetraboride [orthorhombic, space group Pnnm (No. 58), a = 474.65(9) pm, b = 548.0(1) pm, c = 286.81(5) pm, and R value (all data) = 0.041], formerly described in space group Immm, was found not to be superhard, despite several theory-based prognoses. CrB4 shows an almost temperature-independent paramagnetism, consistent with low-spin CrI in a metallic compound. Conductivity measurements confirm the metallic character.
| Item Type: | Article |
|---|---|
| Erschienen: | 2013 |
| Creators: | Knappschneider, Arno ; Litterscheid, Christian ; Dzivenko, Dmytro ; Kurzman, Joshua A. ; Seshadri, Ram ; Wagner, Norbert ; Beck, Johannes ; Riedel, Ralf ; Albert, Barbara |
| Title: | Possible Superhardness of CrB4 |
| Language: | English |
| Abstract: | Chromium tetraboride [orthorhombic, space group Pnnm (No. 58), a = 474.65(9) pm, b = 548.0(1) pm, c = 286.81(5) pm, and R value (all data) = 0.041], formerly described in space group Immm, was found not to be superhard, despite several theory-based prognoses. CrB4 shows an almost temperature-independent paramagnetism, consistent with low-spin CrI in a metallic compound. Conductivity measurements confirm the metallic character. |
| Journal or Publication Title: | Inorganic Chemistry |
| Volume of the journal: | 52 |
| Issue Number: | 2 |
| Publisher: | ACS Publications |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids 07 Department of Chemistry 07 Department of Chemistry > Fachgebiet Anorganische Chemie 07 Department of Chemistry > Physical Chemistry |
| Date Deposited: | 13 Jan 2014 12:55 |
| URL / URN: | http://dx.doi.org/10.1021/ic3020404 |
| Identification Number: | doi:10.1021/ic3020404 |
| PPN: | |
| Funders: | This work made use of the shared experimental facilities of the Materials Research Laboratory supported by the National Science Foundation through the MRSEC Program (NSF DMR-1121053). , J.A.K. thanks the ConvEne-IGERT Program (NSF-DGE 0801627) for an Associateship, B.A. gratefully acknowledges financial support from the Alexander von Humboldt Foundation and the German Academic Exchange Service. |
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