Superconducting properties of aligned crystalline grains of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Y</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Ba</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Cu</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>7</mn><mo>−</mo><mi>δ</mi></mrow></msub></mrow></math></span>

D. E. Farrell; B. S. Chandrasekhar; M. R. DeGuire; M. M. Fang; V. G. Kogan; J. R. Clem; D. K. Finnemore

doi:10.1103/PhysRevB.36.4025

Rapid Communication

Superconducting properties of aligned crystalline grains of $Y_{1} {Ba}_{2} {Cu}_{3} O_{7 - δ}$

D. E. Farrell, B. S. Chandrasekhar, M. R. DeGuire, M. M. Fang, V. G. Kogan, J. R. Clem, and D. K. Finnemore

Phys. Rev. B 36, 4025(R) – Published 1 September 1987

Abstract

A new method has been used to produce uniaxially aligned small single crystals of $Y_{1} {Ba}_{2} {Cu}_{3} O_{7 - δ}$ . The superconducting critical current deduced from magnetization data is strongly field dependent and highly anisotropic. In the basal plane at $T = 4.2$ K we estimate that the critical current at zero field is in excess of $10^{7}$ A/ ${cm}^{2}$ .