Ferromagnetism in partially oxidized CuCl

Saerbeck, Thomas; Pereiro, J.; Wampler, James; Stanley, Jacob T.; Wingert, James; Shpyrko, Oleg; Schuller, Iván K.

doi:10.1016/j.jmmm.2013.07.036

Cited by 10 publications

(5 citation statements)

References 26 publications

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“…Having opposite phases is confirmed by mixing PrSi 2 with a well-known superconductor (Pb, data not shown). Similar MFMMS results have been recently reported from partially oxidized CuCl [119].…”

Section: Prsisupporting

confidence: 91%

Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors

Ramírez¹,

Basaran²,

Venta³

et al. 2014

Rep. Prog. Phys.

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This article introduces magnetic field modulated microwave spectroscopy (MFMMS) as a unique and high-sensitivity technique for use in the search for new superconductors. MFMMS measures reflected microwave power as a function of temperature. The modulation induced by the external ac magnetic field enables the use of phase locked detection with the consequent sensitivity enhancement. The MFMMS signal across several prototypical structural, magnetic, and electronic transitions is investigated. A literature review on microwave absorption across superconducting transitions is included. We show that MFMMS can be used to detect superconducting transitions selectively with very high sensitivity.

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Section: Prsisupporting

confidence: 91%

Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors

Ramírez¹,

Basaran²,

Venta³

et al. 2014

Rep. Prog. Phys.

Self Cite

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“…Among the simulated binary compounds, CuCl 2 has a high critical temperature. For a long time, researchers discussed the possibility of high-temperature superconductivity of copper chloride [29,30], but no superconductivity has been detected in copper chlorides. Also, among the binary compounds, many materials with the highest critical temperatures were obtained, which under normal conditions are in a liquid state, such materials as BrO 2 , Br 2 O, IF 7 , IF 3 .…”

Section: Discussionmentioning

confidence: 99%

Prediction of critical temperature and new superconducting materials

Matasov

Krasavina²

2020

SN Appl. Sci.

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Models for predicting the critical temperature are constructed on the widest base of superconductors. Based on the selection of features, the most important physical parameters were obtained for determining the critical temperature. Models of the best quality were built on the divided data on the number of chemical elements. The resulting models are used to model new superconducting materials. The resulting materials exceed the known used superconductors at a critical temperature.

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“…The chemical shifts of protons in water can depend on the type and structure of the metal ions with which they form hydration complexes. In NMR interpretation, paramagnetic ions (such as Fe 3+ , Mn 2+ , Ni 2+ , and Cu 2+ ) are often considered a complicating factor because they have a substantial impact on relaxation times [27]. Additionally, soils constitute heterogeneous materials, and copper ions interacting with other compounds present in the soil structure can exhibit different magnetic phases.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, soils constitute heterogeneous materials, and copper ions interacting with other compounds present in the soil structure can exhibit different magnetic phases. For instance, copper halides from the atacamite group are relatively unstable [27]. This is particularly concerning because they form in bentonites with high concentrations of copper ions [13].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Unfrozen Water Content in Copper Bentonites Using the 1H NMR Technique: Optimization, the Method’s Limitation, and Comparative Analysis with DSC

Nartowska,

Kanuchova,

Kozáková

2023

Materials

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Studies on changes in unfrozen water content in copper bentonite from Slovakia were conducted using both differential scanning calorimetry (DSC) and nuclear magnetic resonance (NMR) methods. The aims of this study were to 1. optimize the method for determining changes in unfrozen water content using the 1H NMR technique in model bentonites based on the DSC results; 2. analyze the relationship between unfrozen water content, as determined via DSC and the optimized NMR technique, and the physicochemical parameters of bentonites; and 3. identify the limitations in determining changes in unfrozen water content using the 1H NMR technique in relation to copper-contaminated bentonites. The results obtained using the optimized NMR method applied to the model bentonites correlated well with the DSC results. The unfrozen water content in the Cu-contaminated bentonites was 2–18% lower after NMR compared to the DSC results, likely due to the mobility of copper ions and their paramagnetic properties. Statistically significant differences in unfrozen water content between the DSC and NMR methods were observed, depending on molar concentration, copper ion concentration, and temperature, confirmed via Analysis of Variance (ANOVA). Calorimetric studies are recommended for investigating unfrozen water content changes in contaminated clays. Further NMR research could identify metals influencing free induction decay signals under varying physicochemical conditions.

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Ferromagnetism in partially oxidized CuCl

Cited by 10 publications

References 26 publications

Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors

Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors

Prediction of critical temperature and new superconducting materials

Assessment of Unfrozen Water Content in Copper Bentonites Using the 1H NMR Technique: Optimization, the Method’s Limitation, and Comparative Analysis with DSC

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