• Aucun résultat trouvé

Anomalous behavior of the irreversible magnetization and time relaxation in YBa(2)Cu(3)O(7) single crystals with splayed tracks

N/A
N/A
Protected

Academic year: 2021

Partager "Anomalous behavior of the irreversible magnetization and time relaxation in YBa(2)Cu(3)O(7) single crystals with splayed tracks"

Copied!
7
0
0

Texte intégral

Figure

Figure 1 shows the angular dependence of the modulus of the irreversible magnetization as a function of ⌰ for crystal A at two temperatures
Figure 3 shows M i ( ⌰ ) at T ⫽ 60 K for crystal B. The anomalous minimum at low fields is also clearly visible in this case, switching to the usual maximum at high fields.
FIG. 5. Angular dependence of the normalized relaxation rate S 共 open symbols 兲 and irreversible magnetization M i (H) 共 solid  sym-bols 兲 for sample B 共 with splayed defects 兲 , at T ⫽ 60 K and fields 共 a 兲 H ⫽ 30 kG and 共 b 兲 H ⫽ 5 kG.
Figure 5 共 b 兲 shows a different behavior. Here we observe a narrow and small peak mounted over a larger minimum, both centered at 10°

Références

Documents relatifs

Pour qu'on voie le lien entre des aspects de la grammaire qui ne sont pas toujours présentés comme liés mais aussi pour qu'on comprenne mieux notre lecture du travail de

These thresholds are representative of two highly contrasting synoptic regimes affecting the Alps, namely above-average pressure and associated positive temperature and

We analyze the radially symmetric solution corresponding to the vortex defect (the so called melting hedgehog) in Landau - de Gennes theory for nematic liquid crystals.. We

To answer questions 1 and 2, we will not use the classical approach which consists in finding a general quenching criterion for initial data and in studying the quenching behavior

We prove uniqueness for the vortex-wave system with a single point vortex introduced by Marchioro and Pulvirenti [7] in the case where the vorticity is initially constant near the

For the de- termination of the neutron response characteristics of devices at these higher energies, measurements may sometimes be made in monoenergetic proton beams in combination

At a constant temperature, the time dependence of the recovery of the magnetization is found to change from exponential behavior, for tipping-angles smaller than €Ic, to

In particular, the magnetic field leads to a weak reduction of the spectral weight of the Drude response due to the free carriers (by about 3%) and a corresponding, moderate