AI Article Synopsis
- New phenomena can appear during phase transitions at near-zero temperatures, preventing quantum critical transitions from occurring.* -
- The study focuses on the quantum tricritical point (QTCP), where two phase transitions happen simultaneously at zero temperature, a concept not yet fully explored.* -
- Researchers used chemical substitution and a magnetic field in LaCrSb₃, discovering a new magnetic phase and demonstrating the avoidance of the QTCP through a first-order phase transition.*
Article Abstract
New phases or new phenomena are often observed near-zero temperature phase transitions. These new effects represent nature's way of avoiding quantum critical phase transitions. Here, we look at the quantum tricritical point (QTCP), the special case where two transitions are driven to zero temperature at the same time. Unlike the case of quantum critical points, the avoidance of quantum tricritical points has yet to be demonstrated. Using chemical substitution and a magnetic field, we drive LaCrSb_{3} toward a quantum tricritical point. For the first time near a QTCP, we observe the emergence of a new magnetic phase and the avoidance of the QTCP via a first order phase transition.
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| http://dx.doi.org/10.1103/PhysRevLett.133.096701 | DOI Listing |
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Article Synopsis
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