J. Phys. Soc. Jpn. 65, pp. 1917-1919 (1996) [3 Pages]
LETTERS
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Received April 22, 1996
The magnetoresistance of a silver loop, a part of which was replaced by superconducting aluminum, was measured. The h /2 e conductance oscillations whose amplitude increased to about 400( e 2 / h ) at T =0.1 K were observed. The samples exhibited nonlinear I-V characteristics at low temperatures and the oscillations were inverted when the current was increased. The anomalous negative magnetoresistance was also observed at low fields at the lowest temperatures.
©1996 The Physical Society of Japan
KEYWORDS: mesoscopic transport, phase coherence, magnetoresistance, Andreev reflection, proximity effect
References
- 1 See, for example, papers in IBM J. Res. Dev. 32 (1988) No. 3. Google Scholar
- 2 V. T.Petrashov, V. N.Antonov, P.Delsing and T.Claeson:Phys. Rev. Lett. 70 (1993) 347. Crossref, Google Scholar
- 3 V. T.Petrashov, V. N.Antonov, P.Delsing and T.Claeson: Physica (Amsterdam) 194–196B (1994) 1105. Crossref, Google Scholar
- 4 V. T.Petrashov, V. N.Antonov, P.Delsing and T.Claeson: Pis'ma Zh. Eksp. Teor. Fiz. 60 (1994) 589; translation: JETP Lett. 60 (1994) 606. Google Scholar
- 5 V. T.Petrashov, V. N.Antonov, P.Delsing and T.Claeson:Phys. Rev. Lett. 74 (1995) 5268. Crossref, Google Scholar
- 6 M.Büttiker and T. M.Klapwijk:Phys. Rev. B 33 (1986) 5114. Crossref, Google Scholar
- 7 Y.Takane and H.Ebisawa:J. Phys. Soc. Jpn. 60 (1991) 3130. Link, Google Scholar
- 8 P. G. N.de Vegvar and L.Glazman:Phys. Rev. Lett. 71 (1993) 2351. Crossref, Google Scholar
- 9 A.Kadigrobov, A.Zagoskin, R. I.Shekhter and M.Jonson:Phys. Rev. B 52 (1995) R8662. Crossref, Google Scholar
- 10 W. A.Little and R.Parks:Phys. Rev. A 97 (1964) 133. Google Scholar
- 11 A. I.Larkin: Pis'ma Zh. Eksp. Teor. Fiz. 31 (1980) 239; translation: JETP Lett. 31 (1980) 219. Google Scholar
- 12 A. V.Zaitsev: Phys. Lett. A 194 (1994) 315. Crossref, Google Scholar