READ ME This text describes the data presented in the paper: The Construction of a Graphene Hall Effect Magnetometer ======================== Introductory information ======================== Files included in the data deposit: 1) Fig3.xlsx: Raman data 2) Fig5.xlsx: Raw data of Hall voltage during current cycling 3) Fig8.xlsx: Removal of residual offset 4) Fig9a.xlsx: Linearity of Hall voltage 5) Fig9b.xlsx: Linearity of Hall voltage 6) Fig9c.xlsx: Linearity of Hall voltage 7) Fig9c_inset.xlsx: Linearity of Hall voltage 8) Fig10.xlsx: Current related sensitivity 9) Fig11.xlsx: Magnetic field resolution Key words: graphene, Raman, Hall voltage, current related sensitivity, magnetic field resolution ========================== Methodological information ========================== Characterisation of graphene Hall effect magnetometers. Raman is used to quantify graphene quality and then series of charcterisation experiments used to determine sensitivity of devices. Hall voltages are determined by using a current-cycling method which, after averaging, results in the bias in the measurements being accounted for. Device performance is characterised over a rance of currents and magnetic field strengths. Measurement setup included a Faraday box for eliminating external noise sources; a Maxwell coil with power supplies and permanent rare earth magnets for obtaining variable and constant magnetic fields uniformly; a Keithley 6221 current source for biasing; DAQ device for data acquisition. Data was processed through Labview. Date(s) of data collection between : May 2017 to August 2017. ========================= Data-specific information ========================= In the data files, # refers to device number. ======= Contact ======= Please contact rdm@ncl.ac.uk for further information