| XU, Bing, P. MARSIK, E. SHEVELEVA, F. LYZWA, A. LOUAT, V. BROUET, Dominik MUNZAR a C. BERNHARD. Optical Signature of a Crossover from Mott- to Slater-Type Gap in Sr2Ir1-xRhxO4. Physical Review Letters. College Park, Maryland: American Physical Society, 2020, roč. 124, č. 2, s. 1-6. ISSN 0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.124.027402. |
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@article{1698376,
author = {Xu, Bing and Marsik, P. and Sheveleva, E. and Lyzwa, F. and Louat, A. and Brouet, V. and Munzar, Dominik and Bernhard, C.},
article_location = {College Park, Maryland},
article_number = {2},
doi = {http://dx.doi.org/10.1103/PhysRevLett.124.027402},
keywords = {Metal-insulator transition; Optical conductivity; Iridates; Mott insulators; Reflectivity},
language = {eng},
issn = {0031-9007},
journal = {Physical Review Letters},
title = {Optical Signature of a Crossover from Mott- to Slater-Type Gap in Sr2Ir1-xRhxO4},
url = {https://doi.org/10.1103/PhysRevLett.124.027402},
volume = {124},
year = {2020}
}
TY - JOUR
ID - 1698376
AU - Xu, Bing - Marsik, P. - Sheveleva, E. - Lyzwa, F. - Louat, A. - Brouet, V. - Munzar, Dominik - Bernhard, C.
PY - 2020
TI - Optical Signature of a Crossover from Mott- to Slater-Type Gap in Sr2Ir1-xRhxO4
JF - Physical Review Letters
VL - 124
IS - 2
SP - 1-6
EP - 1-6
PB - American Physical Society
SN - 00319007
KW - Metal-insulator transition
KW - Optical conductivity
KW - Iridates
KW - Mott insulators
KW - Reflectivity
UR - https://doi.org/10.1103/PhysRevLett.124.027402
L2 - https://doi.org/10.1103/PhysRevLett.124.027402
N2 - With optical spectroscopy we provide evidence that the insulator-metal transition in Sr2Ir1-xRhxO4 occurs close to a crossover from the Mott- to the Slater-type. The Mott gap at x = 0 persists to high temperature and evolves without an anomaly across the Neel temperature, T-N. Upon Rh doping, it collapses rather rapidly and vanishes around x = 0.055. Notably, just as the Mott gap vanishes yet another gap appears that is of the Slater-type and develops right below T-N. This Slater gap is only partial and is accompanied by a reduced scattering rate of the remaining free carriers, similar as in the parent compounds of the iron arsenide superconductors.
ER -
XU, Bing, P. MARSIK, E. SHEVELEVA, F. LYZWA, A. LOUAT, V. BROUET, Dominik MUNZAR a C. BERNHARD. Optical Signature of a Crossover from Mott- to Slater-Type Gap in Sr2Ir1-xRhxO4. \textit{Physical Review Letters}. College Park, Maryland: American Physical Society, 2020, roč.~124, č.~2, s.~1-6. ISSN~0031-9007. Dostupné z: https://dx.doi.org/10.1103/PhysRevLett.124.027402.
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