Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field

Stinus Jeppesen; Søren Linderoth; Nini Pryds; Luise Theil Kuhn; Jesper Buch Jensen

doi:10.1063/1.2957611

Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field

Stinus Jeppesen, Søren Linderoth, Nini Pryds, Luise Theil Kuhn, Jesper Buch Jensen

Research output: Contribution to journal › Journal article › Research › peer-review

1151 Downloads (Pure)

Abstract

A simple and high-sensitivity differential scanning calorimeter (DSC) unit operating under magnetic field has been built for indirect determination of the magnetocaloric effect. The principle of the measuring unit in the calorimeter is based on Peltier elements as heat flow sensors. The high sensitivity of the apparatus combined with a suitable calibration procedure allows very fast and accurate heat capacity measurements under magnetic field to be made. The device was validated from heat capacity measurements for the typical DSC reference material gallium (Ga) and a La0.67Ca0.33MnO3 manganite system and the results were highly consistent with previous reported data for these materials. The DSC has a working range from 200 to 340 K and has been tested in magnetic fields reaching 1.8 T. The signal-to-noise ratio is in the range of 102–103 for the described experiments. Finally the results have been compared to results from a Quantum Design® physical properties measuring system. The configuration of the system also has the advantage of being able to operate with other types of magnets, e.g., permanent magnets or superconducting coils, as well as the ability to be expanded to a wider temperature range. ©2008 American Institute of Physics

Original language	English
Journal	Review of Scientific Instruments
Volume	79
Issue number	8
Pages (from-to)	083901
ISSN	0034-6748
DOIs	https://doi.org/10.1063/1.2957611
Publication status	Published - 2008

Bibliographical note

Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Access to Document

10.1063/1.2957611

FuelFinal published version, 364 KB

http://link.aip.org/link/?RSINAK/79/083901/1

OpenUrl availability

Full text

Cite this

@article{3cd4272ea5154ffc87ccf2a5f8b6f14d,

title = "Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field",

abstract = "A simple and high-sensitivity differential scanning calorimeter (DSC) unit operating under magnetic field has been built for indirect determination of the magnetocaloric effect. The principle of the measuring unit in the calorimeter is based on Peltier elements as heat flow sensors. The high sensitivity of the apparatus combined with a suitable calibration procedure allows very fast and accurate heat capacity measurements under magnetic field to be made. The device was validated from heat capacity measurements for the typical DSC reference material gallium (Ga) and a La0.67Ca0.33MnO3 manganite system and the results were highly consistent with previous reported data for these materials. The DSC has a working range from 200 to 340 K and has been tested in magnetic fields reaching 1.8 T. The signal-to-noise ratio is in the range of 102–103 for the described experiments. Finally the results have been compared to results from a Quantum Design{\textregistered} physical properties measuring system. The configuration of the system also has the advantage of being able to operate with other types of magnets, e.g., permanent magnets or superconducting coils, as well as the ability to be expanded to a wider temperature range. {\textcopyright}2008 American Institute of Physics",

keywords = "Br{\ae}ndselsceller og brint",

author = "Stinus Jeppesen and S{\o}ren Linderoth and Nini Pryds and Kuhn, {Luise Theil} and Jensen, {Jesper Buch}",

note = "Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",

year = "2008",

doi = "10.1063/1.2957611",

language = "English",

volume = "79",

pages = "083901",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "8",

}

TY - JOUR

T1 - Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field

AU - Jeppesen, Stinus

AU - Linderoth, Søren

AU - Pryds, Nini

AU - Kuhn, Luise Theil

AU - Jensen, Jesper Buch

N1 - Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 2008

Y1 - 2008

N2 - A simple and high-sensitivity differential scanning calorimeter (DSC) unit operating under magnetic field has been built for indirect determination of the magnetocaloric effect. The principle of the measuring unit in the calorimeter is based on Peltier elements as heat flow sensors. The high sensitivity of the apparatus combined with a suitable calibration procedure allows very fast and accurate heat capacity measurements under magnetic field to be made. The device was validated from heat capacity measurements for the typical DSC reference material gallium (Ga) and a La0.67Ca0.33MnO3 manganite system and the results were highly consistent with previous reported data for these materials. The DSC has a working range from 200 to 340 K and has been tested in magnetic fields reaching 1.8 T. The signal-to-noise ratio is in the range of 102–103 for the described experiments. Finally the results have been compared to results from a Quantum Design® physical properties measuring system. The configuration of the system also has the advantage of being able to operate with other types of magnets, e.g., permanent magnets or superconducting coils, as well as the ability to be expanded to a wider temperature range. ©2008 American Institute of Physics

AB - A simple and high-sensitivity differential scanning calorimeter (DSC) unit operating under magnetic field has been built for indirect determination of the magnetocaloric effect. The principle of the measuring unit in the calorimeter is based on Peltier elements as heat flow sensors. The high sensitivity of the apparatus combined with a suitable calibration procedure allows very fast and accurate heat capacity measurements under magnetic field to be made. The device was validated from heat capacity measurements for the typical DSC reference material gallium (Ga) and a La0.67Ca0.33MnO3 manganite system and the results were highly consistent with previous reported data for these materials. The DSC has a working range from 200 to 340 K and has been tested in magnetic fields reaching 1.8 T. The signal-to-noise ratio is in the range of 102–103 for the described experiments. Finally the results have been compared to results from a Quantum Design® physical properties measuring system. The configuration of the system also has the advantage of being able to operate with other types of magnets, e.g., permanent magnets or superconducting coils, as well as the ability to be expanded to a wider temperature range. ©2008 American Institute of Physics

KW - Brændselsceller og brint

U2 - 10.1063/1.2957611

DO - 10.1063/1.2957611

M3 - Journal article

C2 - 19044358

SN - 0034-6748

VL - 79

SP - 083901

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 8

ER -

Indirect measurement of the magnetocaloric effect using a novel differential scanning calorimeter with magnetic field

Abstract

Bibliographical note

Access to Document

OpenUrl availability

Fingerprint

Cite this