Phys. Rev. B 9, 2441–2447 (1974)Magnetoflicker noise in Na and KReceived 25 October 1973; published in the issue dated 15 March 1974 It is shown that a physical model put forward to explain the induced-torque anomalies observed by Schaefer and Marcus in single-crystal spheres of Na and K requires the existence of a new type of 1/f flicker noise in large magnetic fields. A quantitative theory of this effect is developed. The mean-square noise voltage is proportional to I2R02B3Δf/f, where I is the current, R0 is the zero-field resistance, B is the magnetic field, and Δf is the bandwidth. For a convenient experiment the noise could be as large as (1×10-6 V)2, 13 orders of magnitude greater than Johnson noise. Experimental study is recommended to illuminate further the perplexing magnetoconductivity properties of Na and K. © 1974 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.9.2441
DOI:
10.1103/PhysRevB.9.2441
PACS:
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