Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain
Article Abstract:
Compressive epitaxial strain in thin films of copper oxide superconductors could in theory produce much greater rises in the critical temperature than those obtained by comparable hydrostatic pressures. Strain both creates a substantial rise in critical temperature and significantly modifies the normal-state properties. Critical temperature rises as the distance between consecutive CuO2 planes increases. It has also been demonstrated that changing the epitaxial strain makes it possible to increase critical temperature and to show the vital role played by the interlayer coupling.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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Lensless imaging of magnetic nanostructures by X-ray spectro-holography
Article Abstract:
A versatile technique for imaging nanostructures is demonstrated based on the use of resonantly turned soft X-rays for scattering contract and the direct Fourier inversion of a holographic ally formed interference pattern. The technique which is a form of Fourier transform holography, is transferable to a wide variety of specimens, appears scalable to diffraction-limited resolution, and it suited for ultra fast single-shot imaging with coherent X-ray free electron laser sources.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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Direct observation of the alignment of ferromagnetic spins by antiferromagnetic spins
Article Abstract:
Exchange of bias in the study of antiferromagnets is poorly understood although it is technologically important. A new study uses polarization-dependent X-ray magnetic dichroism spectro-microscopy to reveal the micromagnetic structure on both sides of a ferromagnetic-antiferromagnetic interface.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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