scholarly journals Dynamical piezomagnetic effect in time-reversal-invariant Weyl semimetals with axionic charge density waves

2021 ◽  
Vol 104 (17) ◽  
Author(s):  
Jiabin Yu ◽  
Benjamin J. Wieder ◽  
Chao-Xing Liu
Keyword(s):  
Charge Density ◽  
Time Reversal ◽  
Charge Density Waves ◽  
Density Waves ◽  
Piezomagnetic Effect ◽  
Weyl Semimetals

scholarly journals Dynamical Piezomagnetic Effect in Time-Reversal-Invariant Weyl Semimetals with Axionic Charge-Density Waves

2021 ◽  
Author(s):  
Jiabin Yu ◽  
Benjamin Wieder ◽  
Chao-xing Liu
Keyword(s):  
Charge Density ◽  
Gauge Field ◽  
Time Reversal ◽  
Charge Density Waves ◽  
Effective Theory ◽  
Strain Effect ◽  
Density Waves ◽  
Piezomagnetic Effect ◽  
Axion Field ◽  
Weyl Semimetals

Abstract We predict that dynamical strain can induce a bulk orbital magnetization in time-reversal- (TR-) invariant Weyl semimetals (WSMs) that are gapped by charge-density waves (CDWs) -- a class of systems experimentally observed this past year. We term this effect the ``dynamical piezomagnetic effect" (DPME). By studying the low-energy effective theory and a minimal tight-binding (TB) model, we find that the DPME originates from an effective valley axion field that couples the electromagnetic gauge field with a strain-induced pseudo-gauge field. In particular, the DPME represents the first example of a fundamentally 3D strain effect originating from the Chern-Simons 3-form, in contrast to the previously-studied piezoelectric effects characterized by 2D Berry curvature. We further find that the DPME has a discontinuous change when the surface of the system undergoes a topological quantum phase transition (TQPT), and thus, that the DPME provides a bulk signature of a boundary TQPT in a TR-invariant Weyl-CDW.

scholarly journals Charge density waves in Weyl semimetals

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Dan Sehayek ◽  
Manisha Thakurathi ◽  
A. A. Burkov
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
Weyl Semimetals

Macroscopic quantum tunneling of charge density waves

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-161-Pr10-163
Author(s):  
H. Matsukawa ◽  
H. Miyake ◽  
M. Yumoto ◽  
H. Fukuyama
Keyword(s):  
Charge Density ◽  
Quantum Tunneling ◽  
Charge Density Waves ◽  
Density Waves ◽  
Macroscopic Quantum ◽  
Macroscopic Quantum Tunneling

Phase slip scaling relationship for the 59 K and 143 K charge-density-waves in NbSe3

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-129-Pr10-132 ◽  
Author(s):  
J. P. McCarten ◽  
T. C. Jones ◽  
X. Wu ◽  
J. H. Miller ◽  
I. Pirtle ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Phase Slip ◽  
Density Waves ◽  
Scaling Relationship

Transversely driven charge density waves in NbSe3

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-65-Pr10-67
Author(s):  
N. Markovic ◽  
M. A.H. Dohmen ◽  
H. S.J. van der Zant
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves

scholarly journals Chiral charge density waves induced by Ti-doping in 1T-TaS2

2021 ◽  
Vol 118 (21) ◽  
pp. 213105
Author(s):  
J. J. Gao ◽  
W. H. Zhang ◽  
J. G. Si ◽  
X. Luo ◽  
J. Yan ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
Ti Doping
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