Anomalous acoustoelectric effect induced by clapping modes in chiral superconductors
Anomalous acoustoelectric effect induced by clapping modes in chiral superconductors
复制标题
手性超导体拍手模式引起的反常声电效应
DOI:
10.1103/physrevb.105.134520
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发表时间:
2022
影响因子:
3.7
通讯作者:
Fujimoto Satoshi
中科院分区:
文献类型:
--
作者:
Matsushita Taiki;Mizushima Takeshi;Vekhter Ilya;Fujimoto Satoshi
Clapping modes, which are relative amplitude and phase modes between two chiral components of Cooper pairs, are bosonic collective modes inherent to chiral superconductors. These modes behave as long-lived bosons with masses smaller than the threshold energy,, for decay into unbound fermion pairs. Here, we clarify that the real/imaginary clapping modes in chiral superconductors directly couple to acoustic wave propagation when the weak particle-hole asymmetry of the normal state quasiparticle dispersion is taken into account. The clapping modes driven by an acoustic wave generate an alternating electric current, that is, the acoustoelectric effect in superconductors. Significantly, the clapping modes give rise to a transverse electric current. When the sound velocity is comparable to the Fermi velocity, as in heavy fermion compounds, the transverse current is resonantly enhanced at energy below the threshold for continuum excitations. This resonance provides smoking-gun evidence of chiral superconductivity.
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影响因子:
3.6
作者:
S. Yip
通讯作者:
S. Yip
DOI:
10.1016/0370-1573(83)90051-0
发表时间:
1983
期刊:
Physics Reports
影响因子:
--
作者:
J. Serene;D. Rainer
通讯作者:
D. Rainer
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Sumimoto H;Minakami R;Miyano K
通讯作者:
Miyano K
影响因子:
1.8
作者:
U. Rauchschwalbe;C. Bredl;F. Steglich;K. Maki;P. Fulde
通讯作者:
P. Fulde