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An Attempt to Reproduce the Schwarz‐Hora Effect
1.H. Schwarz and H. Hora, Appl. Phys. Letters 15, 349 (1969).
2.H. Schwarz, Ann. Phys. (N.Y.) (to be published).
3.R. L. Harris and R. F. Smith, Nature 225, 502 (1970),
3.see also H. Schwarz, Nature 225, 1173 (1970)., Nature
4.L. L. Van Zandt and J. W. Meyer, J. Appl. Phys. 41, 4470 (1970).
5.L. L. Van Zandt, Appl. Phys. Letters 17, 345 (1970).
6.P. L. Rubin, JETP Letters 11, 239 (1970).
7.A. D. Varshalovich and M. I. D’yakonov, JETP Letters 11, 594 (1970).
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14.L. D. Favro, D. M. Fradkin, and P. K. Kuo, Phys. Rev. (to be published).
15.C. Becchi and G. Morpugo, Phys. Rev. (to be published).
16.L. Pfeiffer has kindly measured the thickness of one of our samples by an α‐particle energy‐loss technique. He found 3200 Å for the thickness of the part we used.
17.Siemens, Corp., Iselin, N.J. 08830. About 0.4–0.5 eV comes from the energy spread upon thermionic emission. Additional spread may come from electron‐electron scattering at foci.
18.It is difficult to reduce the energy spread by a factor of 10, but it has been done with concomitant loss of current. See H. Boersch, J. Geiger, and W. Stickel, Z. Physik 180, 415 (1964);
18.W. A. M. Hartl, Z. Physik 191, 487 (1966)., Z. Phys.
19.H. Schwarz (paper given at the Cleveland APS Meeting, April, 1971) reported seeing the effect with the green line of an laser and red line of a laser, both weaker than the 4880‐Å line originally used.
20.M. H. Pirenne, in The Eye, edited by H. Davson (Academic, New York, 1962), Vol. 2, p. 3, especially p. 94.
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