Magnetic Field Dependence of Molecular Quantum Beat: Biacetyl

1980 ◽  
Vol 35 (11) ◽  
pp. 1271-1272 ◽  
Author(s):  
W. Henke ◽  
H. L. Selzle ◽  
T. R. Hays ◽  
E. W. Schlag
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Fields ◽  
Electronic State ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Laser Excitation ◽  
Quantum Beat ◽  
Narrow Bandwidth ◽  
Hypersonic Jet

Abstract The effect of an external magnetic field on the decay of an excited single rotational state of the 1Au electronic state of biacetyl is observed in a hypersonic jet experiment after narrow bandwidth laser excitation. The lifetime of the ex-cited state decreases already at low magnetic fields and the molecular quantum beat vanishes.

scholarly journals Fluctuation Effects of Magnetohydrodynamic Micro-Vortices on Odd Chirality in Magnetoelectrolysis

2020 ◽  
Vol 6 (3) ◽  
pp. 43
Author(s):  
Iwao Mogi ◽  
Ryoichi Aogaki ◽  
Kohki Takahashi
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Ionic Currents ◽  
Copper Films ◽  
Field Polarity ◽  
Vortex Model ◽  
Self Organized ◽  
The Magnetic Field

The magnetic field dependence of chiral surface formation was investigated in magnetoelectrodeposition (MED) and magnetoelectrochemical etching (MEE) of copper films. The MED and MEE was conducted in magnetic fields of up to 5 T, which were parallel or antiparallel to the ionic currents. The MED films prepared in high magnetic fields of 5 and 3 T exhibited odd chirality for magnetic field polarity, as expected on the basis of the magnetohydrodynamic (MHD) vortex model. However, the films prepared in the lower fields of 2.5 and 2 T exhibited breaking of odd chirality. Similar magnetic field dependence was observed in the surface chirality of MEE films. These results imply that the fluctuation in the self-organized state of micro-MHD vortices is responsible for the breaking of odd chirality.

scholarly journals Pion decay in magnetic fields

2018 ◽  
Vol 175 ◽  
pp. 13005 ◽  
Author(s):  
Gunnar S. Bali ◽  
Bastian B. Brandt ◽  
Gergely Endrődi ◽  
Benjamin Gläße
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Decay Rate ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Charged Pion ◽  
Pion Decay ◽  
Total Decay Rate ◽  
Decay Constants ◽  
The Magnetic Field

The leptonic decay of the charged pion in the presence of background magnetic fields is investigated using quenched Wilson fermions. It is demonstrated that the magnetic field opens up a new channel for this decay. The magnetic field-dependence of the decay constants for both the ordinary and the new channel is determined. Using these inputs from QCD, we calculate the total decay rate perturbatively.

scholarly journals Осцилляции де Гааза--ван Альфена в кремниевой наноструктуре в слабых магнитных полях при комнатной температуре

2019 ◽  
Vol 53 (12) ◽  
pp. 1647
Author(s):  
В.В. Романов ◽  
В.А. Кожевников ◽  
C.T. Tracey ◽  
Н.Т. Баграев
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Fields ◽  
Field Dependence ◽  
Room Temperature ◽  
Weak Magnetic Fields ◽  
Effective Carrier

AbstractThe field dependence of magnetization of a silicon nanosandwich measured at room temperature in weak magnetic fields manifests de Haas–van Alphen oscillations, the behavior of which is explained under the condition of the dependence of the effective carrier mass on the external magnetic field.

scholarly journals Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states

Science ◽  
2021 ◽  
Vol 373 (6550) ◽  
pp. 82-88
Author(s):  
Marco Valentini ◽  
Fernando Peñaranda ◽  
Andrea Hofmann ◽  
Matthias Brauns ◽  
Robert Hauschild ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Magnetic Fields ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Junction Region ◽  
Zero Bias ◽  
Zero Modes ◽  
Majorana Modes ◽  
Shell Nanowires

A semiconducting nanowire fully wrapped by a superconducting shell has been proposed as a platform for obtaining Majorana modes at small magnetic fields. In this study, we demonstrate that the appearance of subgap states in such structures is actually governed by the junction region in tunneling spectroscopy measurements and not the full-shell nanowire itself. Short tunneling regions never show subgap states, whereas longer junctions always do. This can be understood in terms of quantum dots forming in the junction and hosting Andreev levels in the Yu-Shiba-Rusinov regime. The intricate magnetic field dependence of the Andreev levels, through both the Zeeman and Little-Parks effects, may result in robust zero-bias peaks—features that could be easily misinterpreted as originating from Majorana zero modes but are unrelated to topological superconductivity.

Investigation of the external-magnetic-field dependence of polarization transfer in a 8Li-6Li disordered nuclear system

2014 ◽  
Vol 77 (6) ◽  
pp. 682-694 ◽  
Author(s):  
Yu. G. Abov ◽  
A. D. Gulko ◽  
F. S. Dzheparov ◽  
O. N. Ermakov ◽  
D. V. Lvov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Polarization Transfer ◽  
Nuclear System
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