V. N. Vieira

Publication List Details

Period

2005 - 2007

Number

6

Co-Authors

The average kinetic energy density of Cooper pairs above T_c in YBa_2Cu_3O_{7-x}}, Bi_2Sr_2CaCu_2O_{8+\delta}, and Nb} (2007)

Salem-Sugui Jr., S., Doria, M. M., Alvarenga, A. D., Vieira, V. N., Farinas, P. F., Sinnecker, J. P.

We have obtained isofield curves for the square root of the average kinetic energy density of the superconducting state for three single crystals of underdoped YBa_2Cu_3O_{7-x}, an optimally doped...

The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase (2007)

Pureur, P., Fabris, F. Wolff, Schaf, J., Vieira, V. N., Campbell, I. A.

The Hall effect has been studied in a series of AuFe samples in the re-entrant concentration range, as well as in the spin glass range. The data demonstrate that the degree of canting of the local...

The chiral Anomalous Hall effect in re-entrant AuFe alloys (2006)

Fabris, F. Wolff, Pureur, P., Schaf, J., Vieira, V. N., Campbell, I. A.

The Hall effect has been studied in a series of AuFe samples in the re-entrant concentration range, as well as in part of the spin glass range. An anomalous Hall contribution linked to the tilting of...

Experimental observation of two-dimensional fluctuation magnetization in the vicinity of T_c for low values of the magnetic field in deoxygenated YBa_2Cu_3O_{7-x} (2006)

Salem-Sugui, S., Jr., Alvarenga, A. D., Vieira, V. N., Schilling, O. F.

We measured isofield magnetization curves as a function of temperature in two single crystal of deoxygenated YBaCuO with T_c = 52 and 41.5 K. Isofield MvsT were obtained for fields running from 0.05...

A comparative study of high-field diamagnetic fluctuations in deoxygenated YBa2Cu3O(7-x) and polycrystalline (Bi-Pb)2Sr2Ca3O(10) (2005)

Salem-Sugui Jr., S., Alvarenga, A. D., Goretta, K. C., Vieira, V. N., Veal, B., Paulikas, A. P.

We studied three single crystals of YBa2Cu3O{7-x} with Tc= 62.5, 52, and 41 K, and a textured specimen of (Bi-Pb)2Sr2Ca2Cu3O10 with Tc=108 K, for H//c axis. The reversible data were interpreted in...

The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase (2005)

Pureur, P., Fabris, F. Wolff, Schaf, J., Vieira, V. N., Campbell, I. A.

The Hall effect has been studied in a series of AuFe samples in the re-entrant concentration range, as well as in the spin glass range. The data demonstrate that the degree of canting of the local...