Effect of anharmonicity on superconducting metal-hydrogen systems

Singh, Natthi ; Jindal, V. K. ; Pathak, K. N. (1978) Effect of anharmonicity on superconducting metal-hydrogen systems Physical Review B: Condensed Matter and Materials Physics, 18 (7). pp. 3271-3274. ISSN 1098-0121

Full text not available from this repository.

Official URL: http://prb.aps.org/abstract/PRB/v18/i7/p3271_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.18.3271


An estimate of the effect of anharmonicity on the superconducting transition temperature of stoichiometric palladium-hydride (-deutride) systems has been made. It is found that the static phonon frequency shift which modifies the electron-phonon coupling parameter is mainly due to quartic anharmonicity. The calculated transition temperature of PdD is in close agreement with experiments. This confirms that the inverse isotope effect in PdH (PdD) systems is due to anharmonicity of H (D) atoms in the Pd lattice.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:55975
Deposited On:22 Aug 2011 12:57
Last Modified:22 Aug 2011 12:57

Repository Staff Only: item control page