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Researchers have long found the quantum phase transitions fascinating. This is a field within condensed matter physics. One particularly intriguing phenomenon is the quantum Griffith singularity. Recently, Jian-Hao Chen’s team made a significant breakthrough. They now better understand this peculiar phase transition. Their focus was on unconventional high-temperature superconductors.
What is Quantum Griffith Singularity?
Unlike their classical counterparts, quantum fluctuations drive quantum phase transitions, which occur at absolute zero temperature. These transitions often defy traditional scaling invariance, leading to the emergence of the quantum Griffith singularity. This unusual behavior happens in a way that’s hard to understand. The critical exponent, which is a number that describes how physical quantities change near phase transitions, is different. This challenges the usual understanding of universality classes. Universality classes are groups of systems that behave the same way during phase transitions.
The team’s investigation focused on the unconventional high-temperature superconducting bulk single crystals of CaFe1-xNixAsF. A recent study published its findings, revealing the existence of robust quantum Griffith singularities influenced by magnetic fields. This observation suggests that this phenomenon could be common in three-dimensional and unconventional superconductors. This finding could greatly impact how we understand high-temperature superconductivity. High-temperature superconductivity means that some materials can carry electricity without any resistance. This happens even at quite high temperatures.
Closing Remarks
The discovery of quantum Griffith singularities in three-dimensional and unconventional superconductors could provide valuable insights. These insights help us understand what causes high-temperature superconductivity. Jian-Hao Chen, the lead researcher on the project, explained this.
The exploration of peculiar quantum phase transitions, like the quantum Griffith singularity, has great potential. It can help us understand the complex behavior of materials at the quantum level. Researchers are diving deeper into this field. Their work could lead to big advancements in material science and quantum computing. The possible outcomes are truly captivating.
To stay updated with the latest developments in STEM research, visit ENTECH. This is our digital magazine for science, technology, engineering, and mathematics. Here, we explore the fascinating world of quantum phenomena.
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