Raw data files for "Estimating the effect of cooling rate on the acquisition of magnetic remanence"

# Desciption of the data.

The following data set is a collection of TRM acquisition curves in different cooling and field regimes for a selection of grain sizes and elongations. The data is arranged in a direcotory structure in the following way, once the 'sd_cooling_data.zip' file has been unpacked

sd_cooling_data/
|
+-- <grain elongation>pc
    |
    +-- <grain size>nm
        |
        +-- <field strength>uT
            |
            +-- <field x direction>_<field y direction>_<field z direction>
                |
                +-- 6.00e<exponent>s
                    |
                    +-- model.csv

The model.csv file is a comma delimited file consisting of four columns:
    column 1 - the time in seconds as the grain population cools,
    column 2 - the temperature in degrees centigrade,
    column 3 - the 'cooled magnetization' of the population i.e. each grain experiences each temperature step for a finite amount of time,
    column 4 - the 'equilibrium magnetization' of the population i.e. each grain experiences each temperature step for an infinite amount of time.

# Reproducing the data.

Each model takes a JSON file as input to control its behaviour. Running the model is described on the 'sd-cooling' repository home page

    https://www.github.org/Lesleis-Nagy/sd-cooling

The specific version of the software used to generate this data set has doi: 10.5281/zenodo.5085691.

The model JSON used to generate this data set is as follows with input parameters shown between angle brackets.

{
    "material": "magnetite",
    "sizes": {
        "list": [
            {
                "value": "<size>",
                "fraction": 1.0
            }
        ],
        "unit": "nm"
    },
    "elongations": {
        "list": [
            {
                "value": "<elongation>",
                "fraction": 1.0
            }
        ]
    },
    "directions": {
        "list": [
            {
                "value": [
                    1.0,
                    0.0,
                    0.0
                ],
                "fraction": 1.0
            }
        ]
    },
    "applied_field": {
        "strength": <field strength>,
        "direction": [
            <x direction>,
            <y direction>,
            <z direction>
        ],
        "unit": "uT"
    },
    "cooling_regime": {
        "ambient_temperature": 15.0,
        "initial_temperature": 579.9999,
        "reference_time": <reference time>,
        "temperature_at_reference_time": 15.15,
        "allowable_percentage_drop": 0.005,
        "stopping_temperature": 50
    },
    "outputs": {
        "model": "model.csv"
    },
    "tau0": 1e-10,
    "epsilon": 1e-15,
    "n_polish": 0
}