Cryogenic Total-Ionizing-Dose Response of 4th-Generation SiGe HBTs Using 1-MeV Electrons for Europa-Surface Applications

Teng, Jeffrey W.; Nergui, Delgermaa; Tzintzarov, George N.; Ringel, Brett L.; Brumbach, Zachary R.; Heimerl, Justin P.; Mensah, Yaw A.; Moody, Jackson P.; Thorbourn, Dennis; Castillo, Linda Del; Mojarradi, Mohammad; Blalock, Benjamin J.; Cressler, John D.

doi:10.1109/tns.2022.3226452

Cited by 4 publications

(1 citation statement)

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“…The magnetoresistance properties of Ti3C2Tx-MXene show repeatability for use as sensors that can measure space environment magnetic fields. A direct use case for such sensors would be ambient magnetic field sensing for onboard electronics and systems or for surrounding environment monitoring on space missions where the temperatures may drop well below 273 K; e.g., on the surface of Europa (moon of Jupiter), the temperature can be as low as 93 K [54]. The magnetization curves obtained for Ti 3 C 2 T x -MXene are shown in Figure 12.…”

Section: Magnetoresistivity and Magnetization Measurementsmentioning

confidence: 99%

Temperature Evolution of Composition, Thermal, Electrical and Magnetic Properties of Ti3C2Tx-MXene

Srivatsa,

Tokarz,

Przewoźnik

et al. 2024

Materials

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MXenes are a family of two-dimensional nanomaterials. Titanium carbide MXene (Ti3C2Tx-MXene), reported in 2011, is the first inorganic compound reported among the MXene family. In the present work, we report on the study of the composition and various physical properties of Ti3C2Tx-MXene nanomaterial, as well as their temperature evolution, to consider MXenes for space applications. X-ray diffraction, thermal analysis and mass spectroscopy measurements confirmed the structure and terminating groups of the MXene surface, revealing a predominant single OH layer character. The temperature dependence of the specific heat shows a Debye-like character in the measured range of 2 K–300 K with a linear part below 10 K, characteristic of conduction electrons of metallic materials. The electron density of states (DOS) calculations for Ti3C2OH-MXene reveal a significant DOS value at the Fermi level, with a large slope, confirming its metallic character, which is consistent with the experimental findings. The temperature dependence of electrical resistivity of the MXene samples was tested for a wide temperature range (3 K–350 K) and shows a decrease on lowering temperature with an upturn at low temperatures, where negative magnetoresistance is observed. The magnetoresistance versus field is approximately linear and increases its magnitude with decreasing temperature. The magnetization curves are straight lines with temperature-independent positive slopes, indicating Pauli paramagnetism due to conduction electrons.

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Section: Magnetoresistivity and Magnetization Measurementsmentioning

confidence: 99%