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Title: Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe 4As 4

Abstract

RbEuFe 4As 4 exhibits both superconducting order 0.05 in the FeAs layers and ferromagnetic order in the Eu layers, providing a good platform to study the interaction and microscopic coexistence of these two traditionally incompatible orders. Growing high-quality RbEuFe 4As 4 single crystals is essential to investigate these phenomena at a deeper level. Here in this paper we report the successful growth of the RbEuFe 4As 4 single crystals with millimeter-size dimensions using a RbAs flux. The high-quality crystals were characterized via resistivity, magnetization, and heat capacity measurements. Single crystal X-ray diffraction data refinements reveal almost regular FeAs 4 tetrahedra (As1-Fe-As1 = 108.60(7)degrees, As2-Fe-As2 = 109.01 (8)degrees, and As1-Fe-As2 = 109.81(2)degrees) in RbEuFe 4As 4, providing structural support for the highest superconducting transition temperature (T c = 36.8 K) among all known AAeFe 4As 4 (A = K, Rb, Cs; Ae = Ca, Sr, Eu) compounds. Finally, our flux method using RbAs can also be employed to grow other desired transition metal compounds targeting the same crystal structure.

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [2];  [1];  [1]; ORCiD logo [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1460964
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Crystal Growth and Design
Additional Journal Information:
Journal Volume: 18; Journal Issue: 6; Journal ID: ISSN 1528-7483
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Bao, Jin-Ke, Willa, Kristin, Smylie, Matthew P., Chen, Haijie, Welp, Ulrich, Chung, Duck Young, and Kanatzidis, Mercouri G. Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe4As4. United States: N. p., 2018. Web. doi:10.1021/acs.cgd.8b00315.
Bao, Jin-Ke, Willa, Kristin, Smylie, Matthew P., Chen, Haijie, Welp, Ulrich, Chung, Duck Young, & Kanatzidis, Mercouri G. Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe4As4. United States. doi:10.1021/acs.cgd.8b00315.
Bao, Jin-Ke, Willa, Kristin, Smylie, Matthew P., Chen, Haijie, Welp, Ulrich, Chung, Duck Young, and Kanatzidis, Mercouri G. Fri . "Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe4As4". United States. doi:10.1021/acs.cgd.8b00315. https://www.osti.gov/servlets/purl/1460964.
@article{osti_1460964,
title = {Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe4As4},
author = {Bao, Jin-Ke and Willa, Kristin and Smylie, Matthew P. and Chen, Haijie and Welp, Ulrich and Chung, Duck Young and Kanatzidis, Mercouri G.},
abstractNote = {RbEuFe4As4 exhibits both superconducting order 0.05 in the FeAs layers and ferromagnetic order in the Eu layers, providing a good platform to study the interaction and microscopic coexistence of these two traditionally incompatible orders. Growing high-quality RbEuFe4As4 single crystals is essential to investigate these phenomena at a deeper level. Here in this paper we report the successful growth of the RbEuFe4As4 single crystals with millimeter-size dimensions using a RbAs flux. The high-quality crystals were characterized via resistivity, magnetization, and heat capacity measurements. Single crystal X-ray diffraction data refinements reveal almost regular FeAs4 tetrahedra (As1-Fe-As1 = 108.60(7)degrees, As2-Fe-As2 = 109.01 (8)degrees, and As1-Fe-As2 = 109.81(2)degrees) in RbEuFe4As4, providing structural support for the highest superconducting transition temperature (Tc = 36.8 K) among all known AAeFe4As4 (A = K, Rb, Cs; Ae = Ca, Sr, Eu) compounds. Finally, our flux method using RbAs can also be employed to grow other desired transition metal compounds targeting the same crystal structure.},
doi = {10.1021/acs.cgd.8b00315},
journal = {Crystal Growth and Design},
number = 6,
volume = 18,
place = {United States},
year = {2018},
month = {4}
}

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