by Gebbia, J. F., Ramos, M. A., Szewczyk, D., Jezowski, A., Krivchikov, A. I., Horbatenko, Y. V., Guidi, T., Bermejo, F. J. and Tamarit, J. Ll.
Abstract:
The low-temperature thermal and transport properties of an unusual kind of crystal exhibiting minimal molecular positional and tilting disorder have been measured. The material, namely, low-dimensional, highly anisotropic pentachloronitrobenzene has a layered structure of rhombohedral parallel planes in which the molecules execute large-amplitude in-plane as well as concurrent out-of-plane librational motions. Our study reveals that low-temperature glassy anomalies can be found in a system with minimal disorder due to the freezing of (mostly in-plane) reorientational jumps of molecules between equivalent crystallographic positions with partial site occupation. Our findings will pave the way to a deeper understanding of the origin of the above-mentioned universal glassy properties at low temperature.
Reference:
Glassy Anomalies in the Low-Temperature Thermal Properties of a Minimally Disordered Crystalline Solid (Gebbia, J. F., Ramos, M. A., Szewczyk, D., Jezowski, A., Krivchikov, A. I., Horbatenko, Y. V., Guidi, T., Bermejo, F. J. and Tamarit, J. Ll.), In Physical Review Letters, volume 119, 2017.
Bibtex Entry:
@article{gebbia_glassy_2017,
title = {Glassy {Anomalies} in the {Low}-{Temperature} {Thermal} {Properties} of a {Minimally} {Disordered} {Crystalline} {Solid}},
volume = {119},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.119.215506},
doi = {10.1103/PhysRevLett.119.215506},
abstract = {The low-temperature thermal and transport properties of an unusual kind of crystal exhibiting minimal molecular positional and tilting disorder have been measured. The material, namely, low-dimensional, highly anisotropic pentachloronitrobenzene has a layered structure of rhombohedral parallel planes in which the molecules execute large-amplitude in-plane as well as concurrent out-of-plane librational motions. Our study reveals that low-temperature glassy anomalies can be found in a system with minimal disorder due to the freezing of (mostly in-plane) reorientational jumps of molecules between equivalent crystallographic positions with partial site occupation. Our findings will pave the way to a deeper understanding of the origin of the above-mentioned universal glassy properties at low temperature.},
number = {21},
urldate = {2021-07-13},
journal = {Physical Review Letters},
author = {Gebbia, J. F. and Ramos, M. A. and Szewczyk, D. and Jezowski, A. and Krivchikov, A. I. and Horbatenko, Y. V. and Guidi, T. and Bermejo, F. J. and Tamarit, J. Ll.},
month = nov,
year = {2017},
note = {No CMAM},
pages = {215506},
file = {APS Snapshot:E:\Usuarios\Administrator\Zotero\storage\CDLRL3NQ\PhysRevLett.119.html:text/html;Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\V8N2MTKA\Gebbia et al. - 2017 - Glassy Anomalies in the Low-Temperature Thermal Pr.pdf:application/pdf},
}