Pressure-induced electronic transitions in samarium monochalcogenides
Pressure-induced electronic transitions in samarium monochalcogenides
复制标题
单硫族化钐中压力诱导的电子跃迁
DOI:
10.1103/physrevb.105.195135
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发表时间:
2022
影响因子:
3.7
通讯作者:
Banerjee D
中科院分区:
文献类型:
--
作者:
Banerjee D
The pressure-induced isostructural insulator-to-metal transition for SmS is characterized by the presence of an intermediate valence state at higher pressure which cannot be captured by density functional theory. As a direct outcome of including the charge and spin fluctuations incorporated in dynamical mean-field theory, we see the emergence of insulating and metallic phases with increasing pressure as a function of changing valence. This is accompanied by significantly improved predictions of the equilibrium lattice constants and bulk moduli for all Sm monochalcogenides verifying experiments. Nudged elastic band analysis reveals the insulating states to have a finite quasiparticle weight, decreasing as the gap closes rendering the transition to be not Mott-like, and classifies these materials as correlated band insulators. The difference between the discontinuous and continuous natures of these transitions can be attributed to the closeness of the sharply resonant Sm-4peaks to the Fermi level in the predicted metallic states in SmS compared with SmSe and SmTe.
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影响因子:
4.6
作者:
O. Vogt;L. Tristan;Darracq Stephane;S. Heathman;Benedict Ulrich gottfried;K. Mattenberger
通讯作者:
O. Vogt;L. Tristan;Darracq Stephane;S. Heathman;Benedict Ulrich gottfried;K. Mattenberger
影响因子:
0.8
作者:
S. Kapoor;N. Yaduvanshi;Sadhna Singh
通讯作者:
Sadhna Singh
DOI:
10.3390/ma10080953
发表时间:
2017-08-16
期刊:
Materials (Basel, Switzerland)
影响因子:
--
作者:
Sousanis A;Smet PF;Poelman D
通讯作者:
Poelman D
DOI:
10.1002/pssb.200405226
发表时间:
2004-11
期刊:
physica status solidi (b)
影响因子:
--
作者:
A. Svane;G. Santi;Z. Szotek;W. Temmerman;P. Strange;M. Horne;G. Vaitheeswaran;V. Kanchana;L. Petit;H. Winter
通讯作者:
A. Svane;G. Santi;Z. Szotek;W. Temmerman;P. Strange;M. Horne;G. Vaitheeswaran;V. Kanchana;L. Petit;H. Winter
影响因子:
2.7
作者:
Soederlind, Per;Turchi, P. E. A.;Lordi, V.
通讯作者:
Lordi, V.