Paramagnetic Meissner effect in small superconductors
Article Abstract:
The Meissner effect is a critical property of superconductors and implies zero resistivity. Recent studies have shown superconducting samples that attract magnetic field, known as the paramagnetic Meissner effect. This is rare and controversial. Observations of the paramagnetic Meissner effect with better than one quantum of magnetic flux resolution, are reported. The paramagnetic Meissner effect acts as an oscillating function of the magnetic field, replacing the normal Meissner effect above a certain field.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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The structure of suspended graphene sheets
Article Abstract:
The structure of the individual graphene sheets freely suspended on a microfabricated scaffold in vacuum or air is studied. The analysis has disclosed that these suspended graphene sheets are not perfectly flat as they display intrinsic microscopic roughening such that the surface normal varies by several degrees and out-of-plane deformations reach 1 nm.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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Subtomic movements of a domain wall in the Peierls potential
Article Abstract:
A study conducted to observe the motion of a single magnetic domain wall at the scale of individual peaks and troughs of the atomic energy landscape is described. The results suggest that the domain walls can get trapped between crystalline planes, which propagate by distinct jumps that match the lattice periodicity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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