arXiv:1103.1459cond-mat.supr-con
Observation of the Meissner state in superconducting arrays of 4-Ångstrom carbon nanotubes
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Abstract
We report clear observations of the magnetic Meissner effect in arrays of superconducting 4 Å carbon nanotubes grown in the linear channels of AlPO4-5 (AFI) zeolite single crystals. Both bulk magnetization and magnetic torque experiments show a clear signature of the lower critical Hc1 transition, a pronounced difference in zero-field cooled and field cooled branches during temperature sweeps below 6K, and signatures of 1D superconducting fluctuations below ~15-18 K. These experiments extend the magnetic phase diagram we obtained previously by resistive experiments [Z. Wang et al., Phys. Rev. B 81, 174530 (2010)] towards low magnetic fields and within the range of zero resistance.
This 1D stuff really confuses me. I was taught that 1D superconductivity is prohibited by Mermin Wagner theorem. You can induce superconductivity on 1D system but that requires higher dimensional SC near it, which is the opposite of proposed scenario? If someone have seen…
EvgeniyZhView on HNParent context