Anomalous magnetic transport and extra quantum oscillation in semi-metallic photon-like fermion gas
Anomalous magnetic transport and extra quantum oscillation in semi-metallic photon-like fermion gas
复制标题
半金属类光子费米子气体中的反常磁输运和额外量子振荡
DOI:
10.1088/1367-2630/aad9b7
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发表时间:
2018-08
影响因子:
3.3
通讯作者:
Yue Yu
中科院分区:
文献类型:
--
作者:
Xi Luo;Fei-Ye Li;Yue Yu
In the absence of Lorentz symmetry, the pseudospin-1 counterpart of the Weyl fermion (feroton) with linear dispersions and an exact flat band can emerge in condensed matter systems. The flat band branch of the feroton is equivalent to the longitudinal photon in Maxwell theory, which is a redundant degree of freedom due to the emergent (fermionic) gauge symmetry. Upon coupling to an external magnetic field, the fermionic gauge symmetry is broken and the flat band ferotons become gapless excitations characterized by Landau level indices (n > 1). In the long wavelength limit, these gapless modes are of the opposite chirality to the chiral anomaly related zero Landau level, which leads to much more plentiful magnetic transport properties. To further explore the novel properties of these gapless modes, we investigate the quantum oscillation through a generalized Lieb lattice model. We find an extra oscillating behavior which indicates the existence of these exotic gapless modes. We collect known ab initio calculation data from the literature and discuss the possibility of realizing the semi-metallic feroton gas in real materials.
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影响因子:
2.4
作者:
P. Ekins
通讯作者:
P. Ekins
影响因子:
1.9
作者:
F. Blattner
通讯作者:
F. Blattner
影响因子:
1.6
作者:
Vicki D Crinis
通讯作者:
Vicki D Crinis
影响因子:
0.2
作者:
R. Eglash
通讯作者:
R. Eglash
DOI:
10.1080/13573320701467344
发表时间:
2004-01
期刊:
Wiley-Blackwell: Development Policy Review
影响因子:
--
作者:
J. Roberts;D. Shaw;P. Sahoo;N. Harris;B. Persaud;M. Thakur;I. Gillson;A. Suleiman
通讯作者:
J. Roberts;D. Shaw;P. Sahoo;N. Harris;B. Persaud;M. Thakur;I. Gillson;A. Suleiman