Non-Hermitian anomalous skin effect

The anomalous skin effect arises in good conductors at low temperatures and high frequencies when the electronic mean free path becomes comparable with or greater than the classically calculated skin depth. Measurements have been made on a number of metals at frequencies of 1200 and 3600 Mc/s, and the form of variation of r. f. surface conductance with d. c. conductivity agrees well with that predicted theoretically by Reuter & Sondheimer, assuming that the electrons are scattered diffusely when they hit the surface of the metal. From the results, estimates are made of the effective value of σ/ l , the ratio of d. c. conductivity to mean free path, and hence of the free surface area of the occupied region of k -space. The estimate for copper agrees well with that expected theoretically; those for silver and gold are rather lower than the theoretical values. For the other metals investigated, tin, cadmium, lead and aluminium, no theoretical estimates are available. The results are very sensitive to the presence of surface imperfections; the effect of these is discussed.

Download Full-text

Field distribution in a metal under anomalous skin-effect conditions

Physics Letters A ◽

10.1016/0375-9601(76)90771-4 ◽

1976 ◽

Vol 59 (2) ◽

pp. 145-147 ◽

Cited By ~ 2

Author(s):

K. Saermark ◽

J. Lebech

Keyword(s):

Field Distribution ◽

Skin Effect ◽

Anomalous Skin Effect

Download Full-text

On the study of anomalous skin effect for GSI interconnections

Proceedings of the IEEE 2003 International Interconnect Technology Conference (Cat. No.03TH8695) ◽

10.1109/iitc.2003.1219707 ◽

2004 ◽

Cited By ~ 1

Author(s):

R. Sarvari ◽

J.D. Meindl

Keyword(s):

Skin Effect ◽

Anomalous Skin Effect

Download Full-text

Thermal Radiative Properties of the Noble Metals at Cryogenic Temperatures

Journal of Heat Transfer ◽

10.1115/1.3450573 ◽

1976 ◽

Vol 98 (3) ◽

pp. 438-445 ◽

Cited By ~ 14

Author(s):

W. M. Toscano ◽

E. G. Cravalho

Keyword(s):

Noble Metals ◽

Skin Effect ◽

Theoretical Models ◽

Liquid Nitrogen Temperature ◽

Radiative Properties ◽

Cryogenic Temperatures ◽

Electron Model ◽

Thermal Radiative Properties ◽

Effect Theory ◽

Anomalous Skin Effect

Experimental values of the monochromatic, near normal emittance, ελN, of gold at cryogenic temperatures are presented and compared with values predicted by existing theoretical models. From this comparison recommendations are made regarding the engineering suitability of these models. Data obtained by the present authors for ελN of gold in the wavelength range 1 to 30μ and at temperatures of 300, 79, and 6.0 K are compared with the Drude free electron model, the anomalous skin effect theory for both specular and diffuse electron reflections, and the Holstein quantum mechanical model. Results show that the anomalous skin effect model with diffuse electron reflections predicts ελN most accurately. At room temperature and at liquid nitrogen temperature the agreement between this model and the data is within 5 percent. At liquid helium temperatures the agreement is somewhat poorer, i.e., within 30 percent.

Download Full-text