[Todos] Seminario en IFLP. Título: Room temperature superconductivity: State of the Art. A cargo del del Prof. Dr. Pablo Esquinazi, Felix Bloch Institute, University of Leipzig, Alemania.

[Claudia Rodríguez Torres]

Estimadas/os


Comparto información sobre el próximo seminario a realizarse el *lunes 25
de noviembre a las 11h en IFLP*. Se servirá café 10:45 h.


El mismo estará a cargo del *Prof. Dr. Pablo Esquinazi*, Felix Bloch
Institute, University of Leipzig, Alemania



Su charla se titula:

*Room temperature superconductivity: State of the Art*



Se envía a continuación un breve resumen:


In recent years, a significant number of publications in high-citation
journals have reported that hydrogen compounds under pressure may exhibit
superconductivity at room temperature; however, these findings and their
interpretations remain highly controversial. Conversely, for the last 50
years, several independent studies from transport, magnetization, and
magnetic force microscopy—published in less prominent journals—have
indicated the presence of superconductivity in pure graphite samples, with
critical temperatures surpassing 300K. Experimental and theoretical studies
suggest that superconductivity in graphite occurs at specific
two-dimensional stacking faults or interfaces, which constitute a
negligible mass compared to the surrounding non-superconducting graphite
matrix [1]. The limited amount of superconducting material, the
unexpectedly high critical temperatures, added to the considerable
skepticism within the scientific community have contributed to this
phenomenon remaining largely “hidden”; [2]. Recent research in Grenoble,
France, employing simple methods to isolate superconducting graphite
particles from their non-superconducting counterparts, has obtained an
increased superconducting yield, revealing superconducting onset
temperatures around 700K and zero resistance up to 500K [3]. This
presentation will summarize both historical and recent findings,
highlighting the potential impact of these results on nano- and
microelectronics through the development of zero-loss conductors at room
temperature on graphite-basis.



[1] Evidence for room temperature superconductivity at graphite interfaces.
P.D. Esquinazi, C.E. Precker, M. Stiller et al., Quantum Studies:
Mathematics and Foundations 5, 41-53 (2018).

[2] Invited review: Graphite and its hidden superconductivity. P.
Esquinazi, Papers in Physics 5, 1-15 (2013).

[3] Magnetic field sorting of superconducting graphite particles with
Tc>400K, Manuel Núñez-Regueiro et al., arXiv:2410.18020 (2024).



El evento tendrá lugar en el *auditorio ¨Prof. Dr. Luis N. Epele¨ del IFLP*,
sito en la diagonal 113 entre 63 y 64.


Saludos,


Claudia
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