Jojo and Axil, First, it does appear that superconductivity (not ballistic conduction) is involved. The new paper involves nickel nanoparticles in MWCNTs. Here is title and abstract:
"Novel Magnetic and Electrical Properties of Carbon Nanotubes: Consistent with Ultrahigh Temperature Superconductivity" ABSTRACT: <<<We present detailed magnetic properties of Ni magnetic nanoparticles embedded in multiwall carbon nanotubes (MWCNTs). The measured room-temperature saturation magnetization for the nickel nanoparticles is about three times larger than the expected value from the nickel concentration determined independently from inductively coupled plasma mass spectrometer and high energy synchrotron x-ray diffractometer. What is more intriguing is that the Curie-Weiss constant above the Curie temperature of nickel is enhanced by a factor of 12.2. We show that the moment enhancement factor is about two orders of magnitude larger than that predicted from a magnetic-proximity effect. Alternatively, the giant moment enhancement can be naturally explained if MWCNTs are ultra-high temperature superconductors. There is also independent evidence of ultrahigh temperature superconductivity in MWCNTs. The measured room-temperature diamagnetic susceptibility of pure MWCNTs for the magnetic field parallel to the tube-axis direction agrees quantitatively with the expected diamagnetic Meissner effect. Because of a finite number of transverse conduction channels in ultra-thin superconducting tubes, quantum phase slips are significant and the on-tube resistance is not expected to be zero below the mean-field superconducting transition temperature. Nonetheless, the room-temperature on-tube resistivity has been found to be indistinguishable from zero for many individual MWCNTs. We further show that the temperature dependencies of the resistivity in individual single-wall carbon nanotubes (SWCNTs) are inconsistent with ballistic electrical transport mechanism but can be quantitatively explained in terms of quantum phase slips in quasi-one-dimensional superconductors.>>> If you want to view the entire paper, google the string - "California State University at Los Angeles" "Guo-meng Zhao" -- One of the topic lines in the google list should be - Novel Magnetic and Electrical Properties of Carbon Nanotubes www.crcnetbase.com/doi/pdf/10.1201/b11989-11 -- Don't click on either of those lines. Click on "Quick View" below them. This should bring up the entire paper for viewing. The paper cites others which corroborate these surprising results. Nano-carbon is pretty amazing. I find this subject quite difficult. I have no idea whether anomalous superconductivity is essential to LENR. Maybe extremely intense current densities cause some LENRs? If so, then maybe these current flows can be triggered by various carbon nanostructures, cracks in metal hydride surfaces, various colloidal formations of metal nanoparticles, dielectric breakdowns, current streamers and arcs, ...? Jojo Jaro wrote: > This was the conclusion I arrived at as well, after reading Lou's many > posts. And this was the thought I tried to convey to Guenter in his "600C > eCat thread". > > Basically, if your NAE is a transition metal lattice; i.e. Cracks > (Storms), or Patches (W&L) or any other structures (Hagelstein), you would > not be able to achieve High Temp operation. With Carbon Nanostructures > such as nanotubes and graphene, thermal stability of your NAE is not a > problem. These Carbon nanostructures are just amazing. They seem to have > all the critical ingredients to host a NAE. > > Carbon nanostructure-based LENR, which I call LENR2, is the way to go. > > Jojo > > > ----- Original Message ----- > From: Axil Axil > To: [email protected] > Sent: Sunday, July 15, 2012 1:33 PM > Subject: Re: [Vo]:superconductors and laser light > > > Re: http://arxiv.org/pdf/1106.4323.pdf > > I scanned through it fast. It was surprising. > > The bottom line to what this author is saying is as follows: > > These experimental data cannot be explained by ballistic transport but > are consistent with phase-incoherent ultrahigh temperature (>1050 K or > 776 C) superconductivity. Now that is very hot. > > This is because the anomalous magnetic properties shown by iron > impurities in this experiment cannot be explained by existing physics > models except for the paramagnetic Meissner effect due to the existence > of ultrahigh temperature superconductivity in the multi-walled carbon > nanotubes. > > So if nanotubes can be used in LENR, very high temperatures are > possible, but it is still very hard to believe. > > > Any opinion? > Cheers: Axil > > > > > On Sat, Jul 14, 2012 at 11:47 PM, <[email protected]> wrote: > > Axil, > > That's true - I posted that arxiv.org reference a while back, but the > book chapter was also open access a couple of hours ago. I downloaded > it. > Strange that it was sealed off so quickly. > > Same lead author. > Contents are a bit different and more current for those who don't mind > the > expense. > > > > > Axil^2 wrote: > > http://arxiv.org/pdf/1106.4323.pdf > > > > This is an open access paper on the subject. > > > > Cheers: Axil > > > > On Sat, Jul 14, 2012 at 5:53 PM, <[email protected]> wrote: > > > >> Eric, > >> > >> This may not be directly relevant, but I just found this > interesting > >> book > >> chapter and I do not want to start a new thread on > superconductivity - > >> > >> Novel Magnetic and Electrical Properties > >> of Carbon Nanotubes: Consistent with > >> Ultrahigh Temperature Superconductivity > >> > >> http://www.crcnetbase.com/doi/abs/10.1201/b11989-11 > >> > >> -- Lou Pagnucco > >> > >> Eric Walker wrote: > >> > These two articles are suggestive when read in conjunction with > one > >> > another: > >> > > >> > http://phys.org/news/2012-07-synchrotrons-superconductors-cold.html > >> > "The team found the first experimental evidence that a so-called > >> > 'charge-density-wave instability' competes with > superconductivity." > >> > > >> > http://phys.org/news/2011-01-material-superconductor.html#nRlv > >> > "This must mean that they [electrons] were essentially already > synched > >> in > >> > the non-superconductor, but something was preventing them from > sliding > >> > around with zero resistance. The precisely tuned laser light > removes > >> the > >> > frustration, unlocking the superconductivity." > >> > > >> > Eric > >> > > >> > >> > >> > > > > > > >
