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Anisotropic superco...
Anisotropic superconductivity and magnetism in single-crystal RbEuFe4As4
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- Smylie, M. P. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Willa, K. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Bao, J. -K (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Ryan, K. (författare)
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
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- Islam, Z. (författare)
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, IL 60439, United States
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- Claus, H. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Simsek, Y. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Diao, Zhu, 1981- (författare)
- Stockholms universitet,Högskolan i Halmstad,Tillämpad matematik och fysik (MPE-lab),Fysikum,Halmstad University, Sweden
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- Rydh, Andreas (författare)
- Stockholms universitet,Fysikum,Department of Physics, Stockholm University, Stockholm, SE-106 91, Sweden
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- Koshelev, A. E. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Kwok, W. -K (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Chung, D. Y. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Kanatzidis, M. G. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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- Welp, U. (författare)
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
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Materials Science Division, Argonne National Laboratory, 9700 S Cass Avenue, Argonne, IL 60439, United States Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States (creator_code:org_t)
- College Park : American Physical Society, 2018
- 2018
- Engelska.
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Ingår i: Physical Review B. - College Park : American Physical Society. - 2469-9950 .- 2469-9969. ; 98:10
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We investigate the anisotropic superconducting and magnetic properties of single-crystal RbEuFe4As4 using magnetotransport and magnetization measurements. We determine a magnetic ordering temperature of the Eu moments of Tm=15K and a superconducting transition temperature of Tc=36.8K. The superconducting phase diagram is characterized by high upper critical field slopes of -70 and -42 kG/K for in-plane and out-of-plane fields, respectively, and a surprisingly low superconducting anisotropy of Î=1.7. Ginzburg-Landau parameters of κcâŒ67 and κabâŒ108 indicate extreme type-II behavior. These superconducting properties are in line with those commonly seen in optimally doped Fe-based superconductors. In contrast, Eu magnetism is quasi-two dimensional (2D), as evidenced by highly anisotropic in-plane and out-of-plane exchange constants of 0.6 K and <0.04 K. A consequence of the quasi-2D nature of the Eu magnetism are strong magnetic fluctuation effects, a large suppression of the magnetic ordering temperature as compared to the Curie-Weiss temperature, and a kinklike anomaly in the specific heat devoid of any singularity. Magnetization curves reveal a clear magnetic easy-plane anisotropy with in-plane and out-of-plane saturation fields of 2 and 4 kG. © 2018 American Physical Society.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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Smylie, M. P.
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Willa, K.
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Bao, J. -K
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Ryan, K.
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Islam, Z.
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Claus, H.
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Simsek, Y.
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Diao, Zhu, 1981-
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Rydh, Andreas
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Koshelev, A. E.
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Kwok, W. -K
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Chung, D. Y.
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Kanatzidis, M. G ...
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Welp, U.
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Högskolan i Halmstad
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Stockholms universitet