Search: onr:"swepub:oai:DiVA.org:kth-339045" >
Calorimetric eviden...
Calorimetric evidence for two phase transitions in Calorimetric evidence for two phase transitions in Ba1−xKxFe2As2 with fermion pairing and quadrupling states
-
- Shipulin, Ilya (author)
- Institute for Metallic Materials, Leibniz-IFW Dresden, D-01069, Dresden, Germany; Institute for Solid State and Materials Physics, Technische Universität Dresden, D-01069, Dresden, Germany
-
- Stegani, Nadia (author)
- University of Genoa, Via Dodecaneso 33, 16146, Genoa, Italy; Consiglio Nazionale delle Ricerche (CNR)-SPIN, Corso Perrone 24, 16152, Genova, Italy
-
- Maccari, Ilaria (author)
- KTH,Kondenserade materiens teori,Laboratory for Theoretical and Computational Physics, Paul Scherrer Institute, 5232, Villigen PSI, Switzerlanderland
-
show more...
-
- Kihou, Kunihiro (author)
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
-
- Lee, Chul Ho (author)
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
-
- Hu, Quanxin (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China
-
- Zheng, Yu (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China
-
- Yang, Fazhi (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China
-
- Li, Yongwei (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China
-
- Yim, Chi Ming (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
-
- Hühne, Ruben (author)
- Institute for Metallic Materials, Leibniz-IFW Dresden, D-01069, Dresden, Germany
-
- Klauss, Hans Henning (author)
- Institute for Solid State and Materials Physics, Technische Universität Dresden, D-01069, Dresden, Germany
-
- Putti, Marina (author)
- University of Genoa, Via Dodecaneso 33, 16146, Genoa, Italy; Consiglio Nazionale delle Ricerche (CNR)-SPIN, Corso Perrone 24, 16152, Genova, Italy
-
- Caglieris, Federico (author)
- University of Genoa, Via Dodecaneso 33, 16146, Genoa, Italy; Consiglio Nazionale delle Ricerche (CNR)-SPIN, Corso Perrone 24, 16152, Genova, Italy; Institute for Solid State Research, Leibniz-IFW Dresden, D-01069, Dresden, Germany
-
- Babaev, Egor (author)
- KTH,Kondenserade materiens teori
-
- Grinenko, Vadim (author)
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
-
show less...
-
(creator_code:org_t)
- Nature Research, 2023
- 2023
- English.
-
In: Nature Communications. - : Nature Research. - 2041-1723. ; 14:1
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Materials that break multiple symmetries allow the formation of four-fermion condensates above the superconducting critical temperature (T c). Such states can be stabilized by phase fluctuations. Recently, a fermionic quadrupling condensate that breaks the Z 2 time-reversal symmetry was reported in Ba1−xKxFe2As2. A phase transition to the new state of matter should be accompanied by a specific heat anomaly at the critical temperature where Z 2 time-reversal symmetry is broken (TcZ2>Tc). Here, we report on detecting two anomalies in the specific heat of Ba1−xKxFe2As2 at zero magnetic field. The anomaly at the higher temperature is accompanied by the appearance of a spontaneous Nernst effect, indicating the breakdown of Z 2 symmetry. The second anomaly at the lower temperature coincides with the transition to a zero-resistance state, indicating the onset of superconductivity. Our data provide the first example of the appearance of a specific heat anomaly above the superconducting phase transition associated with the broken time-reversal symmetry due to the formation of the novel fermion order.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Shipulin, Ilya
-
Stegani, Nadia
-
Maccari, Ilaria
-
Kihou, Kunihiro
-
Lee, Chul Ho
-
Hu, Quanxin
-
show more...
-
Zheng, Yu
-
Yang, Fazhi
-
Li, Yongwei
-
Yim, Chi Ming
-
Hühne, Ruben
-
Klauss, Hans Hen ...
-
Putti, Marina
-
Caglieris, Feder ...
-
Babaev, Egor
-
Grinenko, Vadim
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Subatomic Physic ...
- Articles in the publication
-
Nature Communica ...
- By the university
-
Royal Institute of Technology