|
|||||
|
|
Structure and magnetic order of Cr-rich Rb2Cr1-xMnxCl4 crystals |
|
| Authors: | G Münninghoff W Kurtz W Treutmann E Hellner G Heger N Lehner D Reinen |
| Institution: | 1. Institut für Mineralogie der Universität, D-3550 Marburg, Federal Republic of Germany;2. SFB 127 und Fachbereich Chemie der Universität, D-3550 Marburg, Federal Republic of Germany;3. Kernforschungszentrum Karlsruhe, Institut für Angewandte Kernphysik I, Postfach 3640, D-7500 Karlsruhe, Federal Republic of Germany;4. Institut Laue-Langevin, 156 X, F-38042 Grenoble Cédex, France |
| Abstract: | The distorted K2NiF4-structure and the magnetic behaviour of the quasi two-dimensional magnetic system Rb2Cr1-xMnxCl4 (0 ? x ? 0.5) are studied by neutron diffraction and magnetic measurements. Strong correlations between ferromagnetic coupling and cooperative Jahn—Teller order are indicated by their occurence in the same concentration range 0 ? x ? 0.41.The percolation threshold xF near x = 0.41 and the x, T-dependence of the para- to ferro-magnetic phase boundary are quite similar to that found in systems with non-magnetic impurities. Further we report the magnetic moment magnitudes in this percolative system. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |