
TY  - JOUR
A1  - Gregson, AK 
A1  - Moxon, NT 
A1  - Weller, RR 
A1  - Hatfield, WE 
T1  - Ferromagnetic exchange coupling in sodium biscarbonatocuprate(II) trihydrate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1982
VL  - 35
IS  - 8
SP  - 1537
EP  - 1541
KW  - 
UR  - https://doi.org/10.1071/CH9821537 
N2  - The magnetic properties of sodium biscarbonatocuprate(II) trihydrate, Na2Cu(CO2)2,3H2O, have been measured in the temperature range 1.8-42 K. Magnetic susceptibility and magnetization measurements provide evidence for ferromagnetic interactions in this linear-chain compound. The magnetic susceptibility data are compatible with a Heisenberg linear chain; the best-fit parameters for the complete data set are: J 1.22 ±0.04cm-1, g 2.18 ± 0.01, and zJ'-0.28 ± 0.02cm-l. Data in the temperature range 7-42K yield the best-fit parameters J1.37 ± 0.08 cm-1, g 2.12 ± 0.01, and zJ' 0.0 cm-1. The g value from this fit agrees with the g value of 2.10 obtained from a fit of the data in the temperature range 10-42 K to the Curie-Weiss law. 
ER  -

