Partial breakdown of translation symmetry at a structural quantum critical point associated with a ferroelectric soft mode
Partial breakdown of translation symmetry at a structural quantum critical point associated with a ferroelectric soft mode
复制标题
与铁电软模式相关的结构量子临界点处平移对称性的部分破坏
DOI:
10.1103/physrevb.106.134111
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发表时间:
2022
影响因子:
3.7
通讯作者:
Mori S.
中科院分区:
文献类型:
--
作者:
Ishii Y.;Yamamoto A.;Sato N.;Nambu Y.;Ohira-Kawamura S.;Murai N.;Ohara K.;Kawaguchi S.;Mori T.;Mori S.
We report that complete suppression of a phonon-driven structural phase transition causes partial breakdown of a three-dimensional translation symmetry in a well-defined sublattice. This state is revealed for a dielectric compound,, that comprises annetwork incorporated into a hexagonal Ba(Sr) sublattice. Pair distribution function analyses and inelastic neutron scattering experiments provide clear-cut evidence of thenetwork forming a continuum of Al-O short-range correlations similar to glasses, whereas the Ba(Sr) sublattice preserves the original translational symmetry. This glassy network significantly dampens the phonon spectrum and transforms it into the broad one resembling those typically observed in glass materials.
DOI:
10.1016/0022-3093(78)90108-4
发表时间:
1978
期刊:
影响因子:
--
作者:
W. Phillips
通讯作者:
W. Phillips
影响因子:
4.6
作者:
Y. Ishii;H. Tsukasaki;E. Tanaka;S. Mori
通讯作者:
S. Mori