Scanning-tunneling-microscopy study of distortion and instability of inclined flux-line-lattice structures in the anisotropic superconductor 2H-NbSe2

H. F. Hess; C. A. Murray; J. V. Waszczak

doi:10.1103/PhysRevLett.69.2138

← Back to search

Scanning-tunneling-microscopy study of distortion and instability of inclined flux-line-lattice structures in the anisotropic superconductor 2H-NbSe2

H. F. Hess, C. A. Murray, J. V. Waszczak

DOI 10.1103/PhysRevLett.69.2138 · Physical Review Letters

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The tilted vortex lattice on the surface of 2H-NbSe2 is investigated with a scanning-tunneling microscope at magnetic fields, such that the vortex separation is comparable to or smaller than the magnetic penetration depth. The basis vectors show a distortion roughly consistent with bulk anisotropic London theory, however, their angular orientation with respect to the tilt direction differs by 30° from that predicted. At field inclinations greater than 80° from the c axis, we find two instabilities into ordered, buckled rows of vortices, followed by a disordering transition.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown