Microscopic phase diagram of LaFeAsO single crystals under pressure

Materne, Philipp; Bi, Wenli; Zhao, Jiyong; Hu, Michael Y.; Kappenberger, Rhea; Wurmehl, Sabine; Aswartham, Saicharan; Büchner, Bernd; Alp, E. Ercan

doi:10.1103/PhysRevB.98.174510

Title: Microscopic phase diagram of LaFeAsO single crystals under pressure

Abstract

We investigated a LaFeAsO single crystal by means of synchrotron Mössbauer spectroscopy under pressure up to 7.5 GPa and down to 13 K and provide a microscopic phase diagram. We found a continuous suppression of the magnetic hyperfine field with increasing pressure and it completely vanishes at ~7.5 GPa which is in contrast to the behavior in polycrystalline samples where the magnetic order vanishes at ~ 20 GPa. The different behavior of the polycrystalline samples might be due to As-vacancies. Our results are in qualitative agreement with density functional theory calculations where a reduction of the magnetic moment with increasing pressure was found. Here, we found that among different samples the magnetic phase transition temperature as well as the low-temperature magnetic hyperfine field decrease with increasing unit cell volume.

Authors:

Materne, Philipp ^[1]; Bi, Wenli ^[2]; Zhao, Jiyong ^[1]; Hu, Michael Y. ^[1]; Kappenberger, Rhea ^[3]; Wurmehl, Sabine ^[3]; Aswartham, Saicharan ^[4]; Büchner, Bernd ^[3]; Alp, E. Ercan ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Geology; Argonne National Lab. (ANL), Argonne, IL (United States)
Leibniz Inst. for Solid State and Materials Research (IFW), Dresden (Germany); Dresden Univ. of Technology (Germany). Inst. of Solid State and Materials Physics
Leibniz Inst. for Solid State and Materials Research (IFW), Dresden (Germany)

Publication Date:: Mon Nov 26 00:00:00 EST 2018

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: German Research Foundation (DFG); National Science Foundation (NSF); USDOE

OSTI Identifier:: 1493702

Alternate Identifier(s):: OSTI ID: 1492125

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 98; Journal Issue: 17; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Materne, Philipp, Bi, Wenli, Zhao, Jiyong, Hu, Michael Y., Kappenberger, Rhea, Wurmehl, Sabine, Aswartham, Saicharan, Büchner, Bernd, and Alp, E. Ercan. Microscopic phase diagram of LaFeAsO single crystals under pressure.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevB.98.174510.

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                    Materne, Philipp, Bi, Wenli, Zhao, Jiyong, Hu, Michael Y., Kappenberger, Rhea, Wurmehl, Sabine, Aswartham, Saicharan, Büchner, Bernd, & Alp, E. Ercan. Microscopic phase diagram of LaFeAsO single crystals under pressure.  United States.  https://doi.org/10.1103/PhysRevB.98.174510

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                    Materne, Philipp, Bi, Wenli, Zhao, Jiyong, Hu, Michael Y., Kappenberger, Rhea, Wurmehl, Sabine, Aswartham, Saicharan, Büchner, Bernd, and Alp, E. Ercan. Mon .  
"Microscopic phase diagram of LaFeAsO single crystals under pressure".  United States.  https://doi.org/10.1103/PhysRevB.98.174510.  https://www.osti.gov/servlets/purl/1493702.

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@article{osti_1493702,

  title        = {Microscopic phase diagram of LaFeAsO single crystals under pressure},

  author       = {Materne, Philipp and Bi, Wenli and Zhao, Jiyong and Hu, Michael Y. and Kappenberger, Rhea and Wurmehl, Sabine and Aswartham, Saicharan and Büchner, Bernd and Alp, E. Ercan},

  abstractNote = {We investigated a LaFeAsO single crystal by means of synchrotron Mössbauer spectroscopy under pressure up to 7.5 GPa and down to 13 K and provide a microscopic phase diagram. We found a continuous suppression of the magnetic hyperfine field with increasing pressure and it completely vanishes at ~7.5 GPa which is in contrast to the behavior in polycrystalline samples where the magnetic order vanishes at ~ 20 GPa. The different behavior of the polycrystalline samples might be due to As-vacancies. Our results are in qualitative agreement with density functional theory calculations where a reduction of the magnetic moment with increasing pressure was found. Here, we found that among different samples the magnetic phase transition temperature as well as the low-temperature magnetic hyperfine field decrease with increasing unit cell volume.},

  doi          = {10.1103/PhysRevB.98.174510},

  journal      = {Physical Review B},

  number       = 17,

  volume       = 98,

  place        = {United States},

  year         = {Mon Nov 26 00:00:00 EST 2018},

  month        = {Mon Nov 26 00:00:00 EST 2018}

}

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Title: Microscopic phase diagram of LaFeAsO single crystals under pressure

Abstract

Citation Formats

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High-Pressure 57 Fe Mössbauer Spectroscopy of LaFeAsO journal, December 2009

Effect of pressure, temperature, fluorine doping, and rare earth elements on the phonon density of states of L FeAsO studied by nuclear inelastic scattering journal, February 2013

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Interplay of Rare Earth and Iron magnetism in RFeAsO with R = La, Ce, Pr, and Sm: A muon spin relaxation study and symmetry analysis text, January 2009

Magneto-Transport Properties of Single Crystalline LaFeAsO text, January 2013

Suppression of the magnetic order in CeFeAsO: non-equivalence of hydrostatic and chemical pressure text, January 2018

NMR Search for the Spin Nematic State in a LaFeAsO Single Crystal
journal, December 2012

Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm)
journal, July 2012

High-Pressure ⁵⁷ Fe Mössbauer Spectroscopy of LaFeAsO
journal, December 2009

Effect of pressure, temperature, fluorine doping, and rare earth elements on the phonon density of states of $L$ FeAsO studied by nuclear inelastic scattering
journal, February 2013

Phase transitions in LaFeAsO: Structural, magnetic, elastic, and transport properties, heat capacity and Mössbauer spectra
journal, September 2008

Coexistence of itinerant electrons and local moments in iron-based superconductors
journal, October 2009

Pressure-induced superconductivity in LaFeAsO: The role of anionic height and magnetic ordering
journal, December 2014

A compact membrane-driven diamond anvil cell and cryostat system for nuclear resonant scattering at high pressure and low temperature
journal, December 2017

Ising and spin orders in the iron-based superconductors
journal, July 2008

Pressure effect on iron-based superconductor LaFeAsO1−xHx: Peculiar response of 1111-type structure
journal, December 2016

⁵⁷ Fe Mössbauer spectroscopy and magnetic measurement studies of oxygen deficient LaFeAsO
journal, June 2008

Intrinsic properties of stoichiometric LaFePO
journal, July 2008

Magnetotransport properties of single-crystalline LaFeAsO
journal, October 2013

Evolution of the phase diagram of ${LaFeP}_{1 − x} {As}_{x} O_{1 − y} F_{y}$ $(y = 0 - 0.1)$
journal, August 2014

Anisotropic electrical resistivity of LaFeAsO: Evidence for electronic nematicity
journal, October 2012

Influence of the rare-earth element on the effects of the structural and magnetic phase transitions in CeFeAsO, PrFeAsO and NdFeAsO
journal, February 2009

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

Magnetic properties of ternary lanthanoid transition metal arsenides studied by Mössbauer and susceptibility measurements
journal, February 1993

Effect of external pressure on the Fe magnetic moment in undoped LaFeAsO from density functional theory: Proximity to a magnetic instability
journal, January 2009

CONUSS and PHOENIX: Evaluation of nuclear resonant scattering data
journal, March 2000

Coexistence of superconductivity and magnetism in ${Ca}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ : Universal suppression of the magnetic order parameter in 122 iron pnictides
journal, October 2015

Role of in-plane and out-of-plane dilution in CeFeAsO: Charge doping versus disorder
journal, May 2013

As vacancies, local moments, and Pauli limiting in LaFeAs $_{1 - δ} O_{0.9} F_{0.1}$ superconductors
journal, October 2011

Suppression of the magnetic order in CeFeAsO: Nonequivalence of hydrostatic and in-plane chemical pressure
journal, July 2018

Microscopic coexistence of magnetism and superconductivity in charge-compensated ${Ba}_{1 - x}$ $K_{x}$ ( ${Fe}_{1 - y}$ ${Co}_{y}$ ) $_{2}$ ${As}_{2}$
journal, April 2014

Local moment vs . Kondo behavior of the 4f-electrons in rare-earth iron oxypnictides
journal, October 2008

On the multi-orbital band structure and itinerant magnetism of iron-based superconductors
journal, January 2011

The electronic phase diagram of the LaO1−xFxFeAs superconductor
journal, February 2009

Time Dependence of Resonantly Filtered Gamma Rays from ${Fe}^{57}$
journal, October 1960

First-principles calculations of Fe on GaAs(100)
journal, April 2003

Electrical resistivity of single crystals of LaFeAsO under applied pressure
journal, September 2014

Structural phase transition and superlattice misfit strain of $R FeAsO$ $(R = La, Pr, Nd, Sm)$
journal, October 2010

Solid state single crystal growth of three-dimensional faceted LaFeAsO crystals
journal, February 2018

Commensurate Spin Density Wave in LaFeAsO: A Local Probe Study
journal, August 2008

Mössbauer spectroscopy evidence for the lack of iron magnetic moment in superconducting FeSe
journal, April 2010

Interplay of rare earth and iron magnetism in $R FeAsO$ ( $R = La$ , Ce, Pr, and Sm): Muon-spin relaxation study and symmetry analysis
journal, September 2009

Nuclear resonant spectroscopy
journal, January 2004

Crystal and magnetic structure of the oxypnictide superconductor ${LaFeAsO}_{1 - x} F_{x}$ : A neutron-diffraction study
journal, November 2010

Crystallographic phase transition and high- T _c superconductivity in LaFeAsO:F
journal, November 2008

Theory of the Magnetic Moment in Iron Pnictides
journal, September 2008

Nuclear resonant spectroscopy
journal, August 2006

Crystallographic Phase Transition and High-Tc Superconductivity in LaFeAsO:F
text, January 2008

Commensurate Spin Density Wave in LaOFeAs: A Local Probe Study
text, January 2008

Intrinsic Properties of Stoichiometric LaOFeP
text, January 2008

Local moment versus Kondo behavior of the 4f-electrons in rare-earth iron oxypnictides
text, January 2008

Influence of the rare-earth element on the effects of the structural and magnetic phase transitions in CeFeAsO, PrFeAsO, and NdFeAsO
text, January 2008

Interplay of Rare Earth and Iron magnetism in RFeAsO with R = La, Ce, Pr, and Sm: A muon spin relaxation study and symmetry analysis
text, January 2009

Magneto-Transport Properties of Single Crystalline LaFeAsO
text, January 2013

Suppression of the magnetic order in CeFeAsO: non-equivalence of hydrostatic and chemical pressure
text, January 2018