Related Experiment Video
Updated: Jun 12, 2025

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
Published on: November 7, 2017
Spectroscopy of Oscillation Modes in Homogeneously Precessing Domain of Superfluid He-B
V V Zavjalov1,2,3, A Savin1,2, E Sergeicheva1,2
1Low Temperature Laboratory, Aalto University School of Science, Espoo, Finland.
Abstract:
We study the homogeneously precessing domain (HPD) in superfluid He-B in a regular continuous-wave nuclear magnetic resonance (CW NMR) experiment. Using Fourier analysis of CW NMR time traces, we identify several oscillation modes with frequency monotonically increasing with the frequency shift of the HPD. Some of these modes are localized near the cell walls, while others are localized in bulk liquid and can be interpreted as oscillations of -solitons. We also observe chaotic motion of the HPD in a certain range of temperatures and frequency shifts.
Related Concept Videos
Atomic Nuclei: Larmor Precession Frequency
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
Atomic Emission Spectroscopy: Interference
Atomic Spectroscopy: Effects of Temperature
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
IR Spectrum Peak Broadening: Hydrogen Bonding
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular...
Atomic Spectroscopy: Absorption, Emission, and Fluorescence

