TY - JOUR
T1 - Sign reversal of hall coefficients near Tc in high-Tc YBa2Cu3Oy films
AU - Horng, H. E.
AU - Sung, H. H.
AU - Yang, H. C.
AU - Wang, L. M.
N1 - Funding Information:
Acknowledgements - The authors would like to thank National Science Council of R.O.C. for financial support of this present work under grant No. NSC-83-0212-M003-011.
PY - 1995/2
Y1 - 1995/2
N2 - Hall coefficients and resistivities of YBa2Cu3Oy films in super-conducting mixed state have been measured at T near Tc. A sign reversal of Hall coefficients in superconducting mixed state is accounted for in terms of the induced electric field, Eind = B × vL/c. Eind occurs as a result of the motion of the flux-vortex; B the magnetic induction; vL the resultant velocity of the flux vortex; and c the speed of light. The normal carriers were driven to one side of the sample by the transverse component Eind,y (perpendicular to the transport current js). In a steady state, an electric field Eacc, yx would be developed by the accumulated charge carriers and the direction of the Eacc, yx is opposite to that of the Hall electric field in the normal state. A sign reversal of Hall coefficient would occur if Eacc, yx dominates in the transverse electric fields. This picture explains both p-type and n-type superconductors.
AB - Hall coefficients and resistivities of YBa2Cu3Oy films in super-conducting mixed state have been measured at T near Tc. A sign reversal of Hall coefficients in superconducting mixed state is accounted for in terms of the induced electric field, Eind = B × vL/c. Eind occurs as a result of the motion of the flux-vortex; B the magnetic induction; vL the resultant velocity of the flux vortex; and c the speed of light. The normal carriers were driven to one side of the sample by the transverse component Eind,y (perpendicular to the transport current js). In a steady state, an electric field Eacc, yx would be developed by the accumulated charge carriers and the direction of the Eacc, yx is opposite to that of the Hall electric field in the normal state. A sign reversal of Hall coefficient would occur if Eacc, yx dominates in the transverse electric fields. This picture explains both p-type and n-type superconductors.
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U2 - 10.1016/0038-1098(94)00694-6
DO - 10.1016/0038-1098(94)00694-6
M3 - Article
AN - SCOPUS:0029251359
SN - 0038-1098
VL - 93
SP - 537
EP - 540
JO - Solid State Communications
JF - Solid State Communications
IS - 6
ER -