Heat capacity of pyrochlore Pr2Ru2O7
Heat capacity measurements have been performed from 0.4 to 200 K in 0 T and from 0.4 to 20 K in magnetic fields up to 9&nbs...
Heat capacity measurements have been performed from 0.4 to 200 K in 0 T and from 0.4 to 20 K in magnetic fields up to 9&nbs...
Nonmagnetic impurities in a two-leg Hubbard ladder
Magnetic correlations are studied in a two-leg Hubbard ladder doped with nonmagnetic impurities using finite temperature quantum Monte Carlo (FTQMC) method. A number of relevant macroscopic quantities...
Magnetic correlations are studied in a two-leg Hubbard ladder doped with nonmagnetic impurities using finite temperature quantum Monte Carlo (FTQMC) method. A number of relevant macroscopic quantities...
Magnetism in coaxial palladium nanowires
J. Appl. Phys. 101, 09D503 (2007); doi:10.1063/1.2672303
Published 21 March 2007
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While bulk palladium is nonmagnetic, several recent studies have shown that magnetism can occur in hcp Pd films, fcc twinned Pd nanoparticles, and Pd atomic strands. These studies show that small changes in Pd atomic configurations can induce magnetic properties. This raises the question of whether nanoscale Pd structures in general are magnetic. In this work, we examine coaxial palladium nanowires in an effort to determine the most stable configurations and their magnetic properties. Relaxed nanowire structures are found using density functional calculations in the plane wave basis. In several metallic systems such as gold, coaxial nanowires have proven to be the lowest energy configurations for ultrathin (
1 nm) nanowires. We consider magnetism in these structures as a function of diameter and coaxial configuration. These results are also compared to fcc and hcp Pd nanowires of comparable diameters. We find that the (6, 0) coaxial nanowire provides the most stable structure and exhibits a magnetic moment of 0.278µB/at.
©2007 American Institute of Physics
1 nm) nanowires. We consider magnetism in these structures as a function of diameter and coaxial configuration. These results are also compared to fcc and hcp Pd nanowires of comparable diameters. We find that the (6, 0) coaxial nanowire provides the most stable structure and exhibits a magnetic moment of 0.278µB/at.
©2007 American Institute of Physics
| History: | Presented 11 January 2007; received 30 October 2006; accepted 10 November 2006; published 21 March 2007 |
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http://link.aip.org/link/?JAPIAU/101/09D503/1 |
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