Granular superconductivity below 5 K in SPI-II pyrolytic graphite
Ana Ballestar, Pablo Esquinazi, Winfried Böhlmann
DOI 10.1103/PhysRevB.91.014502 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We have studied the transport properties of transmission electron microscope (TEM) lamellae obtained from a pyrolytic graphite sample of grade B (SPI-II) with electrical contacts at the edges of the graphene layers. The temperature, magnetic field, input current dependence of the resistance as well as the current-voltage characteristic curves are compatible with the existence of granular superconductivity below 5 K. TEM pictures of the studied lamellae reveal clear differences of the embedded interfaces to those existing in more ordered pyrolytic samples, which appear to be the origin for the relatively lower temperatures at which the granular superconductivity is observed.
Similar papers
Granular superconductivity below 5~K in SPI-II pyrolytic graphite
similarity 0.91Ana Ballestar et al. · 2014 · arXiv:1412.8573
Source status unknown — claims are unverified
Can doping graphite trigger room temperature superconductivity? Evidence for granular high-temperature superconductivity in water-treated graphite powder
similarity 0.88T. Scheike et al. · 2012 · arXiv:1209.1938
Source status unknown — claims are unverified
High-field and high-temperature magnetoresistance reveals the superconducting behaviour of the stacking faults in multilayer graphene
similarity 0.87Christian E. Precker et al. · 2022 · arXiv:2209.15508
Source status unknown — claims are unverified
Evidence of Josephson-coupled superconducting regions at the interfaces of Highly Oriented Pyrolytic Graphite
similarity 0.87A. Ballestar et al. · 2012 · arXiv:1206.2463
Source status unknown — claims are unverified
Evidence for room temperature superconductivity at graphite interfaces
similarity 0.87Pablo D. Esquinazi et al. · 2017 · arXiv:1709.00259
Source status unknown — claims are unverified
Superconductivity at 7.4 K in Few Layer Graphene by Li-intercalation
similarity 0.86Anand P. Tiwari et al. · 2015 · arXiv:1508.06360
Source status unknown — claims are unverified