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Superconducting and magnetic phase diagram of RbEuFe4As4 and CsEuFe4As4 at high pressure

Journal Article · · Physical Review B
 [1];  [1];  [2];  [3];  [4];  [5];  [5];  [6];  [7];  [1]
  1. Univ. of Florida, Gainesville, FL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  3. Univ. of Hawaii at Manoa, Honolulu, HI (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Zhejiang Univ., Hangzhou (China)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. Univ. of Alabama at Birmingham, Birmingham, AL (United States)
The recently discovered (Rb,Cs)EuFe4As4 compounds exhibit an unusual combination of superconductivity (Tc~35K) and ferromagnetism (Tm~15K). We have performed a series of x-ray diffraction, ac magnetic susceptibility, dc magnetization, and electrical resistivity measurements on both RbEuFe4As4 and CsEuFe4As4 to pressures as high as ~30GPa. We find that the superconductivity onset is suppressed monotonically by pressure while the magnetic transition is enhanced at initial rates of dTm/dP~1.7K/GPa and 1.5K/GPa for RbEuFe4As4 and CsEuFe4As4, respectively. Near 7 GPa, Tc onset and Tm become comparable. At higher pressures, signatures of bulk superconductivity gradually disappear. Room-temperature x-ray diffraction measurements suggest the onset of a transition from tetragonal (T) to a half-collapsed-tetragonal (hcT) phase at ~10GPa (RbEuFe4As4) and ~12GPa (CsEuFe4As4). In conclusion, the ability to tune Tc and Tm into coincidence with relatively modest pressures highlights (Rb,Cs)EuFe4As4 compounds as ideal systems to study the interplay of superconductivity and ferromagnetism.
Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
German Research Foundation (DFG); National Natural Science Foundation of China (NSFC); National Science Foundation (NSF); USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357; AC52-07NA27344; NA0002928
OSTI ID:
1471592
Alternate ID(s):
OSTI ID: 1525747
OSTI ID: 1461595
Report Number(s):
LLNL-JRNL--755663; 146039
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 1 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (67)

Magnetic superconductors: A review journal January 1988
A new ferromagnetic superconductor: CsEuFe 4 As 4 journal August 2016
Destruction of superconductivity by magnetic ordering in Ho1.2Mo6S8 journal July 1977
Destruction of superconductivity by magnetic ordering in Ho1.2Mo6S8 journal December 1993
Neutron and magnetization studies of the coexistence of superconductivity and magnetism in HoMo6S8 single crystals journal February 1986
First- and second-order phase transitions in ternary europium phosphides with ThCr2Si2-type structure journal July 1998
Dependence of the superconducting transition temperature of MgB2 on pressure to 20 GPa journal October 2001
The a.c. susceptibility third harmonic component of NdO1−0.14F0.14FeAs: A flux dynamic magnetic analysis journal August 2010
Conventional magnetic superconductors journal July 2015
On the compressibility of BaFe2As2 journal August 2009
Single Crystal Growth and Study of the Ferromagnetic Superconductor RbEuFe 4 As 4 journal April 2018
New-Structure-Type Fe-Based Superconductors: Ca A Fe 4 As 4 ( A = K, Rb, Cs) and Sr A Fe 4 As 4 ( A = Rb, Cs) journal March 2016
Finite strain isotherm and velocities for single-crystal and polycrystalline NaCl at high pressures and 300°K journal January 1978
Superconductivity on the border of itinerant-electron ferromagnetism in UGe2 journal August 2000
Coexistence of superconductivity and ferromagnetism in URhGe journal October 2001
High-temperature superconductivity in iron-based materials journal August 2010
Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors journal November 2014
Epitaxial diamond encapsulation of metal microprobes for high pressure experiments journal November 2000
The ruby pressure standard to 150GPa journal December 2005
Turnbuckle diamond anvil cell for high-pressure measurements in a superconducting quantum interference device magnetometer journal July 2010
Pressure induced valence change of Eu in EuFe 2 As 2 at low temperature and high pressures probed by resonant inelastic x-ray scattering journal January 2014
A compact bellows-driven diamond anvil cell for high-pressure, low-temperature magnetic measurements journal March 2014
High pressure–low temperature phase diagram of barium: Simplicity versus complexity journal November 2015
Nonmetallic gasket and miniature plastic turnbuckle diamond anvil cell for pulsed magnetic field studies at cryogenic temperatures journal December 2011
DIOPTAS : a program for reduction of two-dimensional X-ray diffraction data and data exploration journal May 2015
Hydrostatic limits of 11 pressure transmitting media journal March 2009
Anomalous compressibility effects and superconductivity of EuFe 2 As 2 under high pressures journal June 2010
Observation of a pressure-induced As–As hybridization associated with a change in the electronic state of Fe in the tetragonal phase of EuFe 2 As 2 journal December 2012
Pressure-induced superconductivity in the giant Rashba system BiTeI journal January 2017
Magnetism of the 35 K superconductor CsEuFe 4 As 4 journal March 2018
Effects of Pressure and Magnetic Field on the Pressure-Induced Superconductivity in EuFe 2 As 2 journal December 2012
Hydrostatic high-pressure studies to 25 GPa on the model superconducting pnictide LaRu 2 P 2 journal May 2014
Superconducting state in (Eu 1- x Ca x )RbFe 4 As 4 with 1144-type Structure journal March 2018
Fundamental and harmonic susceptibilities of YBa 2 Cu 3 O 7 − δ journal May 1990
Nonuniversal temperature dependencies of the low-frequency ac magnetic susceptibility in high- T c superconductors journal May 1999
Interplay between structural, electronic, and magnetic instabilities in Eu T 2 P 2 ( T = F e , Co ) under high pressure journal February 2001
High pressure–high temperature equations of state of neon and diamond journal March 2008
Pressure-induced volume-collapsed tetragonal phase of CaFe 2 As 2 as seen via neutron scattering journal November 2008
Superconductivity without Fe or Ni in the phosphides BaIr 2 P 2 and BaRh 2 P 2 journal May 2009
Evidence for a reentrant superconducting state in EuFe 2 As 2 under pressure journal June 2009
Phase diagram of pressure-induced superconductivity in EuFe 2 As 2 probed by high-pressure resistivity up to 3.2 GPa journal June 2011
Pressure-induced changes in the magnetic and valence state of EuFe 2 As 2 journal July 2011
High-temperature superconductivity stabilized by electron-hole interband coupling in collapsed tetragonal phase of KFe 2 As 2 under high pressure journal February 2015
Pressure-induced collapsed-tetragonal phase in SrCo 2 As 2 journal December 2015
Superconductivity and ferromagnetism in hole-doped RbEuFe 4 As 4 journal June 2016
Pressure-induced half-collapsed-tetragonal phase in CaKFe 4 As 4 journal October 2017
Collapsed tetragonal phase transition in LaRu 2 P 2 journal November 2017
Superconductivity of barium-VI synthesized via compression at low temperatures journal November 2017
RbEu ( Fe 1 − x Ni x ) 4 As 4 : From a ferromagnetic superconductor to a superconducting ferromagnet journal December 2017
Mössbauer spectroscopy measurements on the 35.5 K superconductor Rb 1 − δ EuFe 4 As 4 journal April 2018
Destruction of Superconductivity at the Onset of Long-Range Magnetic Order in the Compound Er Rh 4 B 4 journal April 1977
Study of Coexistence of Ferromagnetism and Superconductivity in Single-Crystal Er Rh 4 B 4 journal April 1982
Superconductivity on the Border of Weak Itinerant Ferromagnetism in UCoGe journal August 2007
Superconductivity in iron compounds journal December 2011
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013
EuFe 2 As 2 under High Pressure: An Antiferromagnetic Bulk Superconductor journal August 2009
High Pressure Single Crystal Diffraction at PX^2 journal January 2017
Superconductivity on the border of weak itinerant ferromagnetism in UCoGe text January 2007
Superconductivity without Fe or Ni in the phosphides BaIr2P2 and BaRh2P2 text January 2009
EuFe$_2$As$_2$ under high pressure: an antiferromagnetic bulk superconductor text January 2009
High-temperature superconductivity in iron-based materials text January 2010
Superconductivity in Iron Compounds text January 2011
Nonmetallic Gasket and Miniature Plastic Turnbuckle Diamond Anvil Cell for Pulsed Magnetic Field Studies at Cryogenic Temperatures text January 2011
Collapsed Tetragonal Phase Transition in LaRu$_2$P$_2$ text January 2017
Superconductivity of barium-VI synthesized via compression at low temperatures text January 2017
Dependence of the Superconducting Transition Temperature of MgB2 on Pressure to 20 GPa text January 2001
Superconductivity in Fe-Based Compound EuAFe 4 As 4 (A = Rb and Cs) journal June 2016

Cited By (8)

Unconventional superconductivity in 3d rocksalt transition metal carbides journal January 2019
Effect of pressure on the self-hole-doped superconductor RbGd 2 Fe 4 As 4 O 2 journal December 2018
Coexisting spin resonance and long-range magnetic order of Eu in EuRbFe 4 As 4 journal July 2019
Observation of two collapsed phases in CaRbF e 4 A s 4 journal July 2019
Melting of vortex lattice in the magnetic superconductor RbEuFe 4 As 4 journal September 2019
Superconductivity-driven helical magnetic structure in EuRbFe 4 As 4 ferromagnetic superconductor journal September 2019
Helical structures in layered magnetic superconductors due to indirect exchange interactions mediated by interlayer tunneling journal December 2019
Trends in pressure-induced layer-selective half-collapsed tetragonal phases in the iron-based superconductor family A e A Fe 4 As 4 journal August 2018

Figures / Tables (8)


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