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1.

Metallic normal state of Y1Ba2Cu3O(7-delta)

Kunchur MN; Ivlev BI; Christen DK; Phillips JM.

Phys Rev Lett ; 84(22): 5204-7, 2000 May 29.

Artículo en Inglés | MEDLINE | ID: mdl-10990903

RESUMEN

Flux flow was studied over an entire temperature range down to T approximately 2% of T(c) by using intense pulsed current densities to overcome flux-vortex pinning. The resistivity at high vortex velocities is proportional to B and roughly follows rho approximately rho(n)B/H(c2), with a prefactor of order unity. Contrary to some speculation, rho(n) saturates to a finite residual value as T-->0, indicating a metallic (rho-->finite) rather than insulating (rho-->infinity) normal state, and the vortex dissipation continues to be conventional as T-->0.

2.

Hall effect in YBa2Cu3O7- delta in the limit of free flux flow.

Kunchur MN; Christen DK; Klabunde CE; Phillips JM.

Phys Rev Lett ; 72(14): 2259-2262, 1994 Apr 04.

Artículo en Inglés | MEDLINE | ID: mdl-10055829

3.

Pair-breaking effect of high current densities on the superconducting transition in YBa2Cu3O7- delta.

Kunchur MN; Christen DK; Klabunde CE; Phillips JM.

Phys Rev Lett ; 72(5): 752-755, 1994 Jan 31.

Artículo en Inglés | MEDLINE | ID: mdl-10056514

4.

Observation of free flux flow at high dissipation levels in YBa2Cu3O7- delta epitaxial films.

Kunchur MN; Christen DK; Phillips JM.

Phys Rev Lett ; 70(7): 998-1001, 1993 Feb 15.

Artículo en Inglés | MEDLINE | ID: mdl-10054258

5.

Critical fields and critical currents of superconducting disks in transverse magnetic fields.

Kunchur MN; Poon SJ.

Phys Rev B Condens Matter ; 43(4): 2916-2921, 1991 Feb 01.

Artículo en Inglés | MEDLINE | ID: mdl-9997592

6.

Superposition of decaying flux distributions: A memory effect from flux creep.

Kunchur MN; Poon SJ; Subramanian MA.

Phys Rev B Condens Matter ; 41(7): 4089-4092, 1990 Mar 01.

Artículo en Inglés | MEDLINE | ID: mdl-9994230

7.

Anomalous oxygen isotope effect in La2-xSrxCuO4.

Crawford MK; Kunchur MN; Farneth WE; McCarron III; Poon SJ.

Phys Rev B Condens Matter ; 41(1): 282-287, 1990 Jan 01.

Artículo en Inglés | MEDLINE | ID: mdl-9992766

8.

Flux creep and critcal-current anisotropy in Bi2Sr2CaCu2O8+ delta.

Biggs BD; Kunchur MN; Lin JJ; Poon SJ; Askew TR; Flippen RB; Subramanian MA; Gopalakrishnan J; Sleight AW.

Phys Rev B Condens Matter ; 39(10): 7309-7312, 1989 Apr 01.

Artículo en Inglés | MEDLINE | ID: mdl-9947396

RESUMEN

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