Physics – Condensed Matter – Materials Science
Scientific paper
1997-08-18
Physics
Condensed Matter
Materials Science
12 pages, 4 Postscript figures, uses REVTEX
Scientific paper
10.1103/PhysRevLett.80.1312
Susceptibility and high field magnetization measurements have been performed on powder samples of an $S$=1 bond alternating chain compound [\{Ni(333-tet)($\mu$-N$_3$)\}$_n$](ClO$_4$)$_n$ (333-tet=tetraamine N,N'-bis(3-aminopropyl)-1,3-propanediamine). As the temperature is decreased, the susceptibility exhibits a round maximum at around 120 K and decreases gradually down to 10 K, and then falls down rapidly with a logarithmic curvature which is behavior of the susceptibility of a gapless or a nearly gapless antiferromagnetic chain. Magnetization up to 50 T at 1.4 K shows no or a very small gap in this compound. We have carried out numerical calculations for the $S$=1 antiferromagnetic bond alternating chain with various alternating ratios $\alpha$ and obtained a very good agreement between experiments and calculations for $\alpha$=0.6. We verify experimentally that the gapless point exists around $\alpha$=0.6.
Hagiwara Manabu
Kindo Koichi
Kohno Makoto
Nakano Hiroyuki
Narumi Yasunori
No associations
LandOfFree
Experimental Verification of the Gapless Point in the $S$=1 Antiferromagnetic Bond Alternating Chain does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Experimental Verification of the Gapless Point in the $S$=1 Antiferromagnetic Bond Alternating Chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental Verification of the Gapless Point in the $S$=1 Antiferromagnetic Bond Alternating Chain will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-484423