2012
DOI: 10.1080/10584587.2012.660829
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Results from on-Orbit Testing of the Fram Memory Test Experiment on the Fastsat Micro-Satellite

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Cited by 7 publications
(14 citation statements)
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“…These same acoustic phonons, in the absence of a ferroelectric phase transition, are the main contribution to the pyroelectric coefficient ∂P ∂T E ; it is expected to decrease sufficiently rapidly with decreasing temperature that ∂T ∂E S in (44) vanishes in the limit T → 0 [28]. Consistent with this argument, cryogenic studies of KT aO 3 and SrT iO 3 yielded negligible EC effects [126,127,128,129] and this approach to low temperature refrigeration has not been actively pursued for some time. So why then can magnetocaloric cooling be used routinely to access very low temperatures in complete contrast to its electric counterpart (to date)?…”
Section: A Flavor For Low Temperature Applicationsmentioning
confidence: 84%
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“…These same acoustic phonons, in the absence of a ferroelectric phase transition, are the main contribution to the pyroelectric coefficient ∂P ∂T E ; it is expected to decrease sufficiently rapidly with decreasing temperature that ∂T ∂E S in (44) vanishes in the limit T → 0 [28]. Consistent with this argument, cryogenic studies of KT aO 3 and SrT iO 3 yielded negligible EC effects [126,127,128,129] and this approach to low temperature refrigeration has not been actively pursued for some time. So why then can magnetocaloric cooling be used routinely to access very low temperatures in complete contrast to its electric counterpart (to date)?…”
Section: A Flavor For Low Temperature Applicationsmentioning
confidence: 84%
“…At first sight this dilutecarrier metal looks quite conventional with a resistivity that scales like T 2 as expected for a three-dimensional Fermi liquid [161]. The catch is that this behavior continues to temperatures well above the Fermi temperature T F [101,161] where T F is determined from the coefficient of the linear heat capacity; in 3d for fixed m, T F scales with n 2 3 . Arguments based on Fermi liquid, requiring that T << T F , are clearly inapplicable for T > T F ; furthermore A, the coefficient of this T 2 behavior in the resistivity, can change by four orders of magnitude by tuning the carrier concentration and persists to dilute limits where known mechanisms for T 2 behavior are no longer applicable [101].…”
Section: • Add Charge: An Exotic Metal and Unusual Superconductivitymentioning
confidence: 89%
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“…To test the behaviour of FRAM devices in LEO satellites, we use the new FRAM based microcontroller MSP430FR6989 from Texas Instruments, developing a payload for a cubesat of the AraMiS-C1 family. Tests have already been performed on Ramtron FRAM memories on FASTSAT micro-satellite by NASA Marshall Space Flight Center [6] obtaining good results demonstrating radiation tolerance of FRAM. We are at the moment waiting for a launch opportunity to get live data and verify our assumption that FRAM based microcontrollers can be extremely useful in low cost university satellites.…”
Section: Discussionmentioning
confidence: 99%