1,125 research outputs found
Infinite Body Centered Cubic Network of Identical Resistors
We express the equivalent resistance between the origin and any other lattice
site in an infinite Body Centered Cubic (BCC) network consisting of identical
resistors each of resistance R rationally in terms of known values and . The
equivalent resistance is then calculated. Finally, for large separation between
the origin and the lattice site two asymptotic formulas for the resistance are
presented and some numerical results with analysis are given.Comment: 13 pages, 2 figure
Magnetic frustration in a stoichiometric spin-chain compound, CaCoIrO
The temperature dependent ac and dc magnetization and heat capacity data of
CaCoIrO, a spin-chain compound crystallizing in a KCdCl-derived
rhombohedral structure, show the features due to magnetic ordering of a
frustrated-type below about 30 K, however without exhibiting the signatures of
the so-called "partially disordered antiferromagnetic structure" encountered in
the isostructural compounds, CaCoO and CaCoRhO. This class
of compounds thus provides a variety for probing the consequences of magnetic
frustration due to topological reasons in stoichiometric spin-chain materials,
presumably arising from subtle differences in the interchain and intrachain
magnetic coupling strengths. This compound presents additional interesting
situations in the sense that, ac susceptibility exhibits a large frequency
dependence in the vicinity of 30 K uncharacteristic of conventional
spin-glasses, with this frustrated magnetic state being robust to the
application of external magnetic fields.Comment: Physical Review (Rapid Communications), in pres
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