READ ME File For 'Ultralow mechanical damping with Meissner-levitated ferromagnetic microparticles'

Dataset DOI: 10.5258/SOTON/D1402

ReadMe Author: ANDREA VINANTE, University of Southampton

This dataset supports the publication:
AUTHORS: Andrea Vinante et al
TITLE: Ultralow mechanical damping with Meissner-levitated ferromagnetic microparticles
JOURNAL: Physical Review Applied
PAPER DOI IF KNOWN:


This dataset contains the experimental data used to produce some of the figures shown in the article

The figures are as follows:

Fig. 2  Spectrum
Fig. 3a	Ringdown for mode beta
Fig. 3b	Frequency shift vs amplitude for mode beta
Fig. 4a	Ringdown for mode z
Fig. 4b	Frequency shift vs amplitud for mode z
Fig. 5	1/tau vs pressure	
Fig. 6  Spectrum zoomed around mode alpha


Date of data collection: March 2020

Related projects:
TEQ project (H2020-FETOPEN-RIA- Prof Hendrik Uibricht - 29-11-16)


-----

Data files description.
All data are saved in ascii, format *.csv, using , as separator


1) Avst_beta.csv: amplitude versus time for ringdown of Fig. 3a, mode beta
Column 1: time (s)
Comumn 2: amplitude (mV)

2) Avst_z.csv: amplitude versus time for ringdown of Fig. 4a, mode z
Column 1: time (s)
Comumn 2: amplitude (mV)

3) fvsA_beta: frequency shift versus amplitude for Fig. 3b, mode beta
Column 1: amplitude (mV)
Column 2: frequency shift (mHz)

4) fvsA_z: frequency shift versus amplitude for Fig. 4b, mode z
Column 1: amplitude (mV)
Column 2: frequency shift (mHz)

5) spectrum.csv: Averaged power spectral density of flux noise, used for Fig. 2 and Fig. 6. 
Column 1 = Frequency (Hz)
Column 2 = Flux noise (Phi_0/Hz^0.5) for low pressure data
Column 3 = Flux noise (Phi_0/Hz^0.5) for high pressure data

6) tau_vs_P.csv: 1/tau versus pressure for both mode beta and z, used for Fig. 5
Column 1 = Pressure at 4.2K (mbar)
Column 2 = error on pressure = 5% x Column 1
Column 3 = 1/tau for mode beta
Column 4 = 1/tau for mode z