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Thermal Expansion and Ionic Conductivity
Research Guide
What is Thermal Expansion and Ionic Conductivity?
Thermal Expansion and Ionic Conductivity refers to the study of negative thermal expansion mechanisms in materials such as perovskites, framework compounds, and antiperovskite compounds, alongside their correlations with ionic conductivity, superconductivity, magnetic properties, and applications in sodium-beta alumina batteries.
This field encompasses 24,896 papers examining negative thermal expansion, lattice dynamics, and anomalous physical properties in materials like perovskites and antiperovskites. Research correlates these properties with superconductivity and magnetic nanocrystals, while addressing ionic conduction in solid-state electrolytes. Growth rate over the past 5 years is not available in the provided data.
Topic Hierarchy
Research Sub-Topics
Negative Thermal Expansion Materials
This sub-topic investigates mechanisms like rigid unit modes and transverse vibrations causing volume contraction upon heating in framework materials. Researchers model lattice dynamics and predict NTE in novel compounds.
Perovskite Negative Thermal Expansion
This sub-topic focuses on controllable NTE in perovskite oxides, antiperovskites, and their phase transitions. Researchers correlate structural distortions with thermal and electronic properties.
Solid-State Ionic Conductors
This sub-topic examines ion migration pathways, defect engineering, and conductivity enhancement in inorganic electrolytes. Researchers use computational screening and spectroscopy to optimize lithium and sodium conductors.
Sodium-Beta Alumina Batteries
This sub-topic explores synthesis, stability, and performance of sodium-beta''-alumina as solid electrolytes in sodium-ion systems. Researchers address interface issues and cycling durability.
Ionic Conduction Mechanisms
This sub-topic studies vacancy hopping, interstitial motion, and grain boundary effects governing ion transport in crystalline electrolytes. Researchers apply molecular dynamics and impedance spectroscopy.
Why It Matters
Negative thermal expansion materials enable precise control of dimensional stability in devices under temperature variations, with applications in magnetic refrigeration as shown by Tegus et al. (2002) in "Transition-metal-based magnetic refrigerants for room-temperature applications," which demonstrated room-temperature magnetic entropy changes suitable for cooling technologies. Solid-state electrolytes with high ionic conductivity, such as the lithium superionic conductor identified by Kamaya et al. (2011), support advanced lithium batteries by providing safer alternatives to liquid electrolytes, as detailed in "A lithium superionic conductor." Inorganic solid-state electrolytes further enhance battery performance through optimized ion transport mechanisms, per Bachman et al. (2015) in "Inorganic Solid-State Electrolytes for Lithium Batteries: Mechanisms and Properties Governing Ion Conduction," impacting energy storage in electric vehicles and grid systems.
Reading Guide
Where to Start
"A lithium superionic conductor" by Kamaya et al. (2011) is the starting point, as it provides a concrete example of high ionic conductivity in solids, foundational for understanding correlations with thermal properties in battery materials.
Key Papers Explained
Kamaya et al. (2011) in "A lithium superionic conductor" establishes superionic conduction benchmarks, which Bachman et al. (2015) in "Inorganic Solid-State Electrolytes for Lithium Batteries: Mechanisms and Properties Governing Ion Conduction" expand by detailing ion-transport mechanisms. Famprikis et al. (2019) in "Fundamentals of inorganic solid-state electrolytes for batteries" builds on these with comprehensive properties analysis. Tegus et al. (2002) in "Transition-metal-based magnetic refrigerants for room-temperature applications" connects magnetic effects to thermal behaviors relevant to expansion studies.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current frontiers involve optimizing negative thermal expansion controllability in perovskites and antiperovskites for superconductivity integration, alongside resolving sodium-beta alumina battery challenges. No recent preprints or news are available, so focus remains on established mechanisms from top-cited works like lattice dynamics in disordered crystals by Cahill et al. (1992).
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Accurate Band Gaps of Semiconductors and Insulators with a Sem... | 2009 | Physical Review Letters | 5.7K | ✕ |
| 2 | A lithium superionic conductor | 2011 | Nature Materials | 4.7K | ✕ |
| 3 | Optimization of parameters for semiempirical methods II. Appli... | 1989 | Journal of Computation... | 3.7K | ✕ |
| 4 | Transition-metal-based magnetic refrigerants for room-temperat... | 2002 | Nature | 2.6K | ✕ |
| 5 | Lower limit to the thermal conductivity of disordered crystals | 1992 | Physical review. B, Co... | 2.5K | ✕ |
| 6 | Designing high-energy lithium–sulfur batteries | 2016 | Chemical Society Reviews | 2.4K | ✕ |
| 7 | New and Old Concepts in Thermoelectric Materials | 2009 | Angewandte Chemie Inte... | 2.4K | ✕ |
| 8 | Inorganic Solid-State Electrolytes for Lithium Batteries: Mech... | 2015 | Chemical Reviews | 2.4K | ✓ |
| 9 | Fundamentals of inorganic solid-state electrolytes for batteries | 2019 | Nature Materials | 2.3K | ✕ |
| 10 | WIEN2k: An APW+lo program for calculating the properties of so... | 2020 | The Journal of Chemica... | 2.3K | ✓ |
Frequently Asked Questions
What materials exhibit negative thermal expansion?
Perovskites, framework compounds, and antiperovskite compounds display negative thermal expansion due to specific lattice dynamics. These materials show volume contraction upon heating, correlating with superconductivity and magnetic properties. The cluster includes studies on sodium-beta alumina for battery applications.
How does ionic conductivity relate to solid-state electrolytes?
Ionic conductivity in solid-state electrolytes depends on ion-transport mechanisms, valency, and ionic radius, as reviewed by Bachman et al. (2015). Kamaya et al. (2011) identified a lithium superionic conductor with exceptional conduction properties. Fundamentals are outlined by Famprikis et al. (2019) for battery applications.
What are key applications of negative thermal expansion?
Negative thermal expansion supports technological uses in devices requiring thermal stability, linked to superconductivity and magnetism. Tegus et al. (2002) applied it to room-temperature magnetic refrigerants. It also aids sodium-beta alumina batteries by addressing expansion challenges.
Why is sodium-beta alumina relevant to ionic conductivity?
Sodium-beta alumina serves as a solid electrolyte in batteries, facing challenges in thermal expansion and conductivity. The paper cluster discusses its development and perspectives for high-performance sodium batteries. Correlations with negative thermal expansion improve material stability.
What computational tools study these properties?
WIEN2k, an APW+lo program, calculates solid properties including band gaps relevant to conductivity, per Blaha et al. (2020). Tran and Blaha (2009) used semilocal potentials for accurate band gaps in insulators. These tools model lattice dynamics in perovskites and antiperovskites.
Open Research Questions
- ? How can negative thermal expansion be controllably tuned in perovskites to enhance superconductivity?
- ? What lattice dynamics mechanisms precisely govern ionic conductivity in antiperovskite compounds?
- ? Which material designs minimize thermal expansion mismatch in sodium-beta alumina batteries?
- ? How do magnetic properties interact with negative thermal expansion under varying temperatures?
- ? What are the limits of solid-state electrolyte conductivity correlating with framework compound anomalies?
Recent Trends
The field maintains 24,896 works with no specified 5-year growth rate.
Persistent focus on negative thermal expansion in perovskites and antiperovskites correlates with ionic conductivity in solid electrolytes, as in Kamaya et al. and Famprikis et al. (2019).
2011No recent preprints or news indicate steady advancement in sodium-beta alumina battery perspectives.
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