Universität zu Köln

Opletal, Petr ORCID: 0000-0001-9608-5341, Prokleska, Jan, Valenta, Jaroslav, Proschek, Petr ORCID: 0000-0003-2627-3544, Tkac, Vladimir ORCID: 0000-0001-5886-7801, Tarasenko, Robert, Behounkova, Marie ORCID: 0000-0001-8227-0685, Matouskova, Sarka, Abd-Elmeguid, Mohsen M. and Sechovsky, Vladimir ORCID: 0000-0003-1298-2120 (2017). Quantum ferromagnet in the proximity of the tricritical point. npj Quantum Mater., 2. LONDON: NATURE PUBLISHING GROUP. ISSN 2397-4648

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Abstract

Echoes of quantum phase transitions at finite temperatures are theoretically and experimentally challenging and unexplored topics. Particularly in metallic quantum ferromagnets the experimental investigations are hampered by an intricate preparation of sufficiently pure samples and the access to the proper coordinates in parameter space. The present study shows that it is possible to tune a specific system at easily accessible conditions to the vicinity of its quantum phase transition. The physics is demonstrated on Ru-doped UCoAl, driven by pressure or substitution to and across the tricritical point and follows the first-order transition line to the theoretically presumed quantum phase transition. These findings open the possibilities for further in-depth studies of classical and quantum critical phenomena at easily reachable conditions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Opletal, Petr UNSPECIFIED orcid.org/0000-0001-9608-5341 UNSPECIFIED Prokleska, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Valenta, Jaroslav UNSPECIFIED UNSPECIFIED UNSPECIFIED Proschek, Petr UNSPECIFIED orcid.org/0000-0003-2627-3544 UNSPECIFIED Tkac, Vladimir UNSPECIFIED orcid.org/0000-0001-5886-7801 UNSPECIFIED Tarasenko, Robert UNSPECIFIED UNSPECIFIED UNSPECIFIED Behounkova, Marie UNSPECIFIED orcid.org/0000-0001-8227-0685 UNSPECIFIED Matouskova, Sarka UNSPECIFIED UNSPECIFIED UNSPECIFIED Abd-Elmeguid, Mohsen M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sechovsky, Vladimir UNSPECIFIED orcid.org/0000-0003-1298-2120 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-227769
DOI:	10.1038/s41535-017-0035-6
Journal or Publication Title:	npj Quantum Mater.
Volume:	2
Date:	2017
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	LONDON
ISSN:	2397-4648
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language METAMAGNETIC TRANSITION; HIGH-PRESSURE; LIQUID; UCOAL; STATE; DESTRUCTION; CRITICALITY Multiple languages Materials Science, Multidisciplinary; Quantum Science & Technology; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22776