Static and Dynamic Vortex Phases in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>YBa</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi>Cu</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow><mrow><msub><mrow><mi>O</mi></mrow><mrow><mn>7</mn><mo>−</mo><mi>δ</mi></mrow></msub></mrow></math></span>

J. A. Fendrich; U. Welp; W. K. Kwok; A. E. Koshelev; G. W. Crabtree; B. W. Veal

doi:10.1103/PhysRevLett.77.2073

Static and Dynamic Vortex Phases in ${YBa}_{2} {Cu}_{3} O_{7 - δ}$

J. A. Fendrich, U. Welp, W. K. Kwok, A. E. Koshelev, G. W. Crabtree, and B. W. Veal

Phys. Rev. Lett. 77, 2073 – Published 2 September 1996

Abstract

Simultaneous magnetization, resistivity, and I-V measurements on ${YBa}_{2} {Cu}_{3} O_{7 - δ}$ show the relationship of the thermodynamic and dynamic behavior near the vortex lattice melting line. We find a coexistence region of solid and liquid at melting, with a first order magnetization jump which is independent of the vortex velocity. Sudden jumps and time dependent hysteresis of the I-V curve in the vortex solid phase are interpreted as a relaxation-pinning effect.