Dependence of Berry's phase on the sign of thegfactor for conical rotation of a magnetic field, measured without any dynamical phase shift

2011 ◽  
Vol 83 (5) ◽  
Author(s):  
Atsuo Morinaga ◽  
Koichi Toriyama ◽  
Hirotaka Narui ◽  
Takatoshi Aoki ◽  
Hiromitsu Imai
Keyword(s):  
Magnetic Field ◽  
Phase Shift ◽  
Berry's Phase ◽  
Berry’S Phase ◽  
Dynamical Phase

THE AHARONOV-CASHER AND BERRY’S PHASE EFFECTS IN SOLIDS

1991 ◽  
Vol 05 (23) ◽  
pp. 1607-1611 ◽  
Author(s):  
E.N. BOGACHEK ◽  
I.V. KRIVE ◽  
I.O. KULIK ◽  
A.S. ROZHAVSKY
Keyword(s):  
Magnetic Field ◽  
Phase Shift ◽  
Condensed Matter ◽  
Field Vector ◽  
Metal Ring ◽  
Topological Phase ◽  
Berry's Phase ◽  
Berry’S Phase ◽  
Aharonov Bohm ◽  
The Magnetic Field

We consider the manifestations of charge-induced topological phase shift (Aharonov-Casher effect) in condensed matter physics. There will be an oscillating response to high voltage of the magnetic moment (persistent current) and conductivity, as well as a phase shift of the Aharonov-Bohm oscillation to a smaller voltage, for the normal metal ring threaded by a charged fiber. These oscillations shift in phase if the magnetic field vector rotates along the ring, as a consequence of the geometrical (Berry’s) phase associated with the electron spin.

BERRY'S PHASE AND ORGANIC SALT WITH CHARGE TRANSFER

2002 ◽  
Vol 16 (03) ◽  
pp. 57-67
Author(s):  
A. C. AGUIAR PINTO ◽  
M. T. THOMAZ ◽  
R. BRUNO
Keyword(s):  
Magnetic Field ◽  
Dipole Moment ◽  
Charge Transfer ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Adiabatic Limit ◽  
Organic Salt ◽  
Berry's Phase ◽  
Berry’S Phase

We consider the dynamics of a dimer of the organic salt N-methyl-M-ethylmorpholinium-tetracyanoquinodimethane [MEM(TCNQ)2] in the presence of an external precessing magnetic field. We derive the influence of Berry's phases on the magnetization and electric dipole moment per site of the organic salt in the adiabatic limit.

scholarly journals Nontrivial quantum oscillation geometric phase shift in a trivial band

2019 ◽  
Vol 5 (10) ◽  
pp. eaax6550
Author(s):  
Biswajit Datta ◽  
Pratap Chandra Adak ◽  
Li-kun Shi ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Phase Shift ◽  
Quantum Oscillation ◽  
Oscillation Phase ◽  
Berry's Phase ◽  
Fermi Surfaces ◽  
Quantum Oscillations ◽  
Berry’S Phase ◽  
Topological Quantum ◽  
Linear Band ◽  
Trilayer Graphene

Quantum oscillations provide a notable visualization of the Fermi surface of metals, including associated geometrical phases such as Berry’s phase, that play a central role in topological quantum materials. Here we report the existence of a new quantum oscillation phase shift in a multiband system. In particular, we study the ABA-trilayer graphene, the band structure of which is composed of a weakly gapped linear Dirac band, nested within a quadratic band. We observe that Shubnikov-de Haas (SdH) oscillations of the quadratic band are shifted by a phase that sharply departs from the expected 2π Berry’s phase and is inherited from the nontrivial Berry’s phase of the linear band. We find this arises due to an unusual filling enforced constraint between the quadratic band and linear band Fermi surfaces. Our work indicates how additional bands can be exploited to tease out the effect of often subtle quantum mechanical geometric phases.

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