ICTS:29290

Video URL

To Kill A Griffiths Phase

To Kill A Griffiths Phase

(2024). To Kill A Griffiths Phase. SciVideos. https://youtu.be/BJCy8LtRt68

To Kill A Griffiths Phase. SciVideos, Aug. 12, 2024, https://youtu.be/BJCy8LtRt68 

          @misc{ scivideos_ICTS:29290,
            doi = {},
            url = {https://youtu.be/BJCy8LtRt68},
            author = {},
            keywords = {},
            language = {en},
            title = {To Kill A Griffiths Phase},
            publisher = {},
            year = {2024},
            month = {aug},
            note = {ICTS:29290 see, \url{https://scivideos.org/icts-tifr/29290}}
          }
Rajesh Narayanan
Talk numberICTS:29290
Source RepositoryICTS-TIFR
Source EventKagome off-scale
Collection

Abstract

In low dimensional superconductors, disorder and many body interactions leads to a veritable zoo of intriguing phases and phase transitions. A exemplar of the same is for instance the highly debated anomalous metallic phase which exists circumventing the celebrated Anderson localisation. On the other hand, disorder itself triggers a host of very intriguing and exotic effects such as the Quantum Griffiths Phase (QGP) that stems from the associated Infinite Randomness Fixed Point (IRFP). In this talk we provide incontrovertible proof of emergence of a QGP in the 2D electron gas formed in the LaScO_3 /SrTiO_2 heterostructure. The signatures of the QGP are embedded in the magneto-resistance exhibited by the sample. In particular, we show that in the Griffiths phase (that obtains at higher temperatures), the effective dynamical exponent diverges as a function of the magnetic field. Further, at lower temperatures we argue that the divergence signalling the QGP is cut-off by interplay of diso...