Quantum ferromagnet in the proximity of the tricritical point
Quantum phase transitions: Tuned in metallic ferromagnets Clean ferromagnetic systems are predicted to exhibit quantum phase transitions (QPTs) rather than critical points. QPTs happen at zero temperature due to quantum fluctuations between the phases, and can be triggered by non-thermal perturbatio...
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2017-06-01
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Series: | npj Quantum Materials |
Online Access: | https://doi.org/10.1038/s41535-017-0035-6 |
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doaj-381ee9ececb24929abdc3f0b0ed7267e2021-04-02T19:02:24ZengNature Publishing Groupnpj Quantum Materials2397-46482017-06-01211610.1038/s41535-017-0035-6Quantum ferromagnet in the proximity of the tricritical pointPetr Opletal0Jan Prokleška1Jaroslav Valenta2Petr Proschek3Vladimír Tkáč4Róbert Tarasenko5Marie Běhounková6Šárka Matoušková7Mohsen M. Abd-Elmeguid8Vladimír Sechovský9Charles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsInstitute of Geology, Czech Academy of Science v.v.i.Charles University, Faculty of Mathematics and PhysicsCharles University, Faculty of Mathematics and PhysicsQuantum phase transitions: Tuned in metallic ferromagnets Clean ferromagnetic systems are predicted to exhibit quantum phase transitions (QPTs) rather than critical points. QPTs happen at zero temperature due to quantum fluctuations between the phases, and can be triggered by non-thermal perturbations such as hydrostatic pressure, chemical composition or magnetic fields. Jan Prokleška at Czesh Charles University and colleagues from Czech Republic and Germany demonstrate that it is possible to tune the QPT of the metallic ferromagnet UCo1-xRuxAl by pressure or weak Ru doping. The experimental study of QPTs in metallic ferromagnets is typically hindered by the extreme conditions required to drive the system into the transition, or by the presence of additional phases such as superconductivity. Instead, UCo1-xRuxAl allows to get access to the QPT at easily accessible experimental conditions, opening the possibility of studying in detail quantum critical phenomena.https://doi.org/10.1038/s41535-017-0035-6 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Petr Opletal Jan Prokleška Jaroslav Valenta Petr Proschek Vladimír Tkáč Róbert Tarasenko Marie Běhounková Šárka Matoušková Mohsen M. Abd-Elmeguid Vladimír Sechovský |
spellingShingle |
Petr Opletal Jan Prokleška Jaroslav Valenta Petr Proschek Vladimír Tkáč Róbert Tarasenko Marie Běhounková Šárka Matoušková Mohsen M. Abd-Elmeguid Vladimír Sechovský Quantum ferromagnet in the proximity of the tricritical point npj Quantum Materials |
author_facet |
Petr Opletal Jan Prokleška Jaroslav Valenta Petr Proschek Vladimír Tkáč Róbert Tarasenko Marie Běhounková Šárka Matoušková Mohsen M. Abd-Elmeguid Vladimír Sechovský |
author_sort |
Petr Opletal |
title |
Quantum ferromagnet in the proximity of the tricritical point |
title_short |
Quantum ferromagnet in the proximity of the tricritical point |
title_full |
Quantum ferromagnet in the proximity of the tricritical point |
title_fullStr |
Quantum ferromagnet in the proximity of the tricritical point |
title_full_unstemmed |
Quantum ferromagnet in the proximity of the tricritical point |
title_sort |
quantum ferromagnet in the proximity of the tricritical point |
publisher |
Nature Publishing Group |
series |
npj Quantum Materials |
issn |
2397-4648 |
publishDate |
2017-06-01 |
description |
Quantum phase transitions: Tuned in metallic ferromagnets Clean ferromagnetic systems are predicted to exhibit quantum phase transitions (QPTs) rather than critical points. QPTs happen at zero temperature due to quantum fluctuations between the phases, and can be triggered by non-thermal perturbations such as hydrostatic pressure, chemical composition or magnetic fields. Jan Prokleška at Czesh Charles University and colleagues from Czech Republic and Germany demonstrate that it is possible to tune the QPT of the metallic ferromagnet UCo1-xRuxAl by pressure or weak Ru doping. The experimental study of QPTs in metallic ferromagnets is typically hindered by the extreme conditions required to drive the system into the transition, or by the presence of additional phases such as superconductivity. Instead, UCo1-xRuxAl allows to get access to the QPT at easily accessible experimental conditions, opening the possibility of studying in detail quantum critical phenomena. |
url |
https://doi.org/10.1038/s41535-017-0035-6 |
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