This DATSETNAMEreadme.txt file was generated on [YYYYMMDD] by [Name] ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset Dataset associated with “Effects of poling and crystallinity on the dielectric properties of Pb(In1/2Nb1/2)-Pb(Mn1/3Nb2/3)-PbTiO3 at cryogenic temperatures” 2. Author Information Principal Investigator Contact Information Name: Andrew J. Bell Institution: University of Leeds Address: School of Chemical and Process Engineering, University of Leeds, Leeds, UK Email: a.j.bell@leeds.ac.uk Associate or Co-investigator Contact Information Name: Philippa M. Shepley Institution: University of Leeds Address: School of Chemical and Process Engineering, University of Leeds, Leeds, UK Email: p.m.shepley@leeds.ac.uk Associate or Co-investigator Contact Information Name: Laura A. Stoica Institution: University of Leeds Address: School of Chemical and Process Engineering, University of Leeds, Leeds, UK Email: l.a.stoica@leeds.ac.uk Associate or Co-investigator Contact Information Name: Yang Li Institution: University of Leeds Address: School of Chemical and Process Engineering, University of Leeds, Leeds, UK Email: pmylia@leeds.ac.uk Associate or Co-investigator Contact Information Name: Gavin Burnell Institution: University of Leeds Address: School of Physics and Astronomy, University of Leeds, Leeds, UK Email: g.burnell@leeds.ac.uk 3. Date of data collection (single date, range, approximate date) 20170330 to 20180613 4. Geographic location of data collection (where was data collected?): University of Leeds 5. Information about funding sources that supported the collection of the data: CASE student award EPSRC-Thales UK EPSRC award EP/M002462/1 -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: CCBY 2. Links to publications that cite or use the data: arXiv:1802.06032 3. Links to other publicly accessible locations of the data: n/a 4. Links/relationships to ancillary data sets: n/a 5. Was data derived from another source? If yes, list source(s): no 6. Recommended citation for the data: Philippa M. Shepley, Laura A. Stoica, Yang Li, Gavin Burnell, Andrew J. Bell (2018): Dataset associated with “Effects of poling and crystallinity on the dielectric properties of Pb(In1/2Nb1/2)-Pb(Mn1/3Nb2/3)-PbTiO3 at cryogenic temperatures” University of Leeds. [Dataset]. https://doi.org/10.5518/407 --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Title: pinpmnpt_xtal_and_poly_cryo_perm Filename: pinpmnpt_xtal-and-poly_cryo_perm_2018-01-16_srep1.opj Short description: Dielectric permittivity data taken below room temperature (plotting and analysis from data in cryo_permittivity_data.zip). Graphs for Figures 1,2 and 3 in associated publication. B. Title: cryo_permittivity_data Filename:cryo_permittivity_data.zip Short description: Dielectric permittivity data taken below room temperature for poled and depoled samples (raw data - dielectric permitivity as a function of temperature and frequency) C. Title: pinpmtpt_111_001_poled-depoled_permittivity_high_T Filename: pinpmtpt_111_001_2017-06-28_07-04_poled-depoled_permittivity_high_T_srep1.opj Short description: Dielectric permittivity data of crystals taken above room temperature Includes Vogel-Fulcher fitting of (001) high T peaks for Figure 4b of associated publication (plotting and analysis from data in high_T_permittivity.zip). D. Title: pinpmtpt_poly_permittivity_high_T Filename: pinpmtpt_poly_2017-11-_srep1.opj Short description: Dielectric permittivity data of polycrystalline ceramic taken above room temperature (plotting and analysis from data in high_T_permittivity.zip). E. Title: high_T_permittivity_data Filename: high_T_permittivity.zip Short description: Dielectric permittivity data of crystals and polycrystalline ceramic taken above room temperature (raw data - dielectric permitivity as a function of temperature and frequency). F. Title: VF_analysis Filename: VF_analysis_srep1.opj Short description: Vogel-Fulcher fitting of low temperature peak data from the 001 cut crystal (plotting and analysis from data in VF_analysis_lowT.zip). Graphs for Figure 4a in associated publication. G. Title: VF_analysis_lowT_data Filename: VF_analysis_lowT.zip Short description: Vogel-Fulcher fitting of low temperature peak data from the 001 cut crystal python script for processing the data to extract peak positions N.B. open python script and check package dependencies before running. Script is intended to be run in an IDE such as Spyder on python 2.7 Script uses packages from the Anaconda python distribution and the Stoner package (raw data - dielectric permitivity as a function of temperature and frequency). H. Title: Berlincourt_d33_pinpmnpt Filename: 2018-06-13_Berlincourt_d33_pinpmnpt.xlxs Short description: repeat measurments and averaging of room temperature Berlincourt meter data 2. Relationship between files: Origin Pro files contain plotting of data in zip files (see descriptions) 3. Additional related data collected that was not included in the current data package: sample preparation information and structural characterisation are available L.A. Stoica, PhD theis, University of Leeds (2016) http://etheses.whiterose.ac.uk/id/eprint/16259 4. Are there multiple versions of the dataset? no If yes, list versions: Name of file that was updated: i. Why was the file updated? ii. When was the file updated? Name of file that was updated: i. Why was the file updated? ii. When was the file updated? -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Dielectric data (real permittivity, imaginary permittivity, relative permittivity, loss tangent) as a function of temperature and frequency for the relaxor-ferroelectric Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 with nominal composition 28%(PIN)-40%(PMN)-32%(PT). The data are for three samples: an (001) cut single crystal, a (111) cut single crystal, a polycrystalline ceramic. Permittivity data were measured for both a poled and depoled state for each sample. To make the samples, powdered material was prepared by mixed oxide methods. The polycrystalline ceramic pellet was formed by sintering and the crystal was grown by Bridgman technique. Silver epoxy was painted onto the crystal and pellet main faces and cured at 770 K to form electrodes. The (001) cut crystal was 1.117 mm thick and had an electrode area of 0.2019 cm2, the (111) cut crystal was 1.200 mm thick and had an electrode area of 0.2601 cm2, and the ceramic pellet was 1.720 mm thick and had an electrode area of 0.7557 cm2. Samples were poled and measured using the same electrodes. We poled the samples by heating them to 370 K, then applying an electric field of 1 kV/mm while the samples cooled to room temperature. High temperature (high T) data: room temperature up to 800 K. High temperature relative permittivity and loss tangent measure with a HP4192A impedance analyser in a tube furnace with silver wires for electrode contact. Low temperature (lowT, cryo) data: 20 to 290 K Low temperature dielectric permittvity data was taken in a cryostat using a Solartron Impedance Analyser and Modulab MTS software http://www.ameteksi.com/products/software/xm-studio-software The samples were mounted in an Oxford Microstat, where the temperature was swept at a rate of 2 K/minute. A driving voltage with an rms value of 2 V was applied at a range of frequencies between 1 MHz and 0.05 Hz, and the response was measured. Low temperature dielectric relaxation peak positions for the poled (001) crystal were extracted and fitted to a Vogel-Fulcher function. Room temperature characterisation of the piezoelectric charge coefficients by Berlincourt method, repeated 10 times and averaged. (see also associated publication) 2. Methods for processing the data: python script used to extract peak positions for Vogel-Fulcher fitting done in Origin Pro 3. Instrument- or software-specific information needed to interpret the data: Origin Pro for some files. 4. Standards and calibration information, if appropriate: n/a 5. Environmental/experimental conditions: Low temperature cryostat measurements were taken under vacuum. High temperature tube furnace measurements were taken in atmosphere. 6. Describe any quality-assurance procedures performed on the data: repeat measurements were done and behaviour of measurement circuits at a range of frequncies were checked at room temperature 7. People involved with sample collection, processing, analysis and/or submission: L.A.S. made the ceramics and grew the crystals, P.M.S. and A.J.B. conceived the experiments, G.B. wrote the cryostat control software, P.M.S. and Y.Li conducted the experiments, P.M.S. analysed the results.