Two-dimensional Vortex Behavior in Highly Underdoped YBa_2Cu_3O_{6+x} Observed byScanning Hall Probe Microscopy

Journal Article · Tue Apr 22 00:00:00 EDT 2008 · Phys.Rev.B77:104515,2008

DOI:https://doi.org/10.1103/PhysRevB.77.104515· OSTI ID:927539

Guikema, J W; Bluhm, Hendrik; Bonn, D A; Liang, Ruixing; Hardy, W N; Moler, K A

We report scanning Hall probe microscopy of highly underdoped superconducting YBa{sub 2}Cu{sub 3}O{sub 6+z} with T{sub c} ranging from 5 to 15 K which showed distinct flux bundles with less than one superconducting flux quantum ({Phi}{sub 0}) through the sample surface. The sub-{Phi}{sub 0} features occurred more frequently for lower T{sub c}, were more mobile than conventional vortices, and occurred more readily when the sample was cooled with an in-plane field component. We show that these features are consistent with kinked stacks of pancake vortices.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 927539
• Report Number(s): SLAC-PUB-13131; arXiv:0802.2129; TRN: US200811%%171
• Journal Information: Phys.Rev.B77:104515,2008, Journal Name: Phys.Rev.B77:104515,2008
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MICROSCOPY
VORTICES
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
SUPERCONDUCTORS
MAGNETIC FLUX
General Physics
MATSCI
PHYS