On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy

doi:10.1016/j.jmmm.2017.09.046

Title: On magnetic structure of CuFe ₂Ge ₂: Constrains from the ⁵⁷Fe Mössbauer spectroscopy

Full Record
Other Related Research

Abstract

⁵⁷Fe Mössbauer spectroscopy measurements were performed on a powdered CuFe ₂Ge ₂ sample that orders antiferromagnetically at ~175 K. Whereas a paramagnetic doublet was observed above the Néel temperature, a superposition of paramagnetic doublet and magnetic sextet (in approximately 0.5:0.5 ratio) was observed in the magnetically ordered state, suggesting a magnetic structure similar to a double-Q spin density wave with half of the Fe paramagnetic and another half bearing static moment of ~0.5–1μ _B. Lastly, these results call for a re-evaluation of the recent neutron scattering data and band structure calculations, as well as for deeper examination of details of sample preparation techniques.

Authors:

Bud’ko, Sergey L. ^[1]; Jo, Na Hyun ^[1]; Downing, Savannah S. ^[1]; Canfield, Paul C. ^[1]

Ames Lab. and Iowa State Univ., Ames, IA (United States)

Publication Date:: 2017-09-20

Research Org.:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1409364

Alternate Identifier(s):: OSTI ID: 1495527

Report Number(s):: [IS-J-9493]
[Journal ID: ISSN 0304-8853; PII: S0304885317319315; TRN: US1703195]

Grant/Contract Number:: [AC02-07CH11358]

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Magnetism and Magnetic Materials

Additional Journal Information:: [ Journal Volume: 446; Journal Issue: C]; Journal ID: ISSN 0304-8853

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; Mössbauer spectroscopy; Magnetic order; Hyperfine parameters

Citation Formats


                    Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., and Canfield, Paul C. On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.jmmm.2017.09.046.

Copy to clipboard


                    Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., & Canfield, Paul C. On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy.  United States.  doi:10.1016/j.jmmm.2017.09.046.

Copy to clipboard


                    Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., and Canfield, Paul C. Wed .  
        "On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy".  United States.  doi:10.1016/j.jmmm.2017.09.046.  https://www.osti.gov/servlets/purl/1409364.

Copy to clipboard


                    
@article{osti_1409364,

  title        = {On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy},

  author       = {Bud’ko, Sergey L. and Jo, Na Hyun and Downing, Savannah S. and Canfield, Paul C.},

  abstractNote = {57Fe Mössbauer spectroscopy measurements were performed on a powdered CuFe2Ge2 sample that orders antiferromagnetically at ~175 K. Whereas a paramagnetic doublet was observed above the Néel temperature, a superposition of paramagnetic doublet and magnetic sextet (in approximately 0.5:0.5 ratio) was observed in the magnetically ordered state, suggesting a magnetic structure similar to a double-Q spin density wave with half of the Fe paramagnetic and another half bearing static moment of ~0.5–1μB. Lastly, these results call for a re-evaluation of the recent neutron scattering data and band structure calculations, as well as for deeper examination of details of sample preparation techniques.},

  doi          = {10.1016/j.jmmm.2017.09.046},

  journal      = {Journal of Magnetism and Magnetic Materials},

  number       = [C],

  volume       = [446],

  place        = {United States},

  year         = {2017},

  month        = {9}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1016/j.jmmm.2017.09.046

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Mechanically-induced disorder in CaFe ₂As ₂: A ⁵⁷Fe Mössbauer study

Journal Article Ma, Xiaoming ; Ran, Sheng ; Canfield, Paul C. ; ... - Journal of Alloys and Compounds

⁵⁷Fe Mössbauer spectroscopy was used to perform a microscopic study on the extremely pressure and strain sensitive compound, CaFe ₂As ₂, with different degrees of strain introduced by grinding and annealing. At the base temperature, in the antiferromagnetic/orthorhombic phase, compared to a sharp sextet Mössbauer spectrum of single crystal CaFe ₂As ₂, which is taken as an un-strained sample, an obviously broadened sextet and an extra doublet were observed for ground CaFe ₂As ₂ powders with different degrees of strain. The Mössbauer results suggest that the magnetic phase transition of CaFe ₂As ₂ can be inhomogeneously suppressed by the grindingmore »« less
Cited by 2
DOI: 10.1016/j.jallcom.2015.10.128

Full Text Available
Understanding Active Sites in Pyrolyzed Fe–N–C Catalysts for Fuel Cell Cathodes by Bridging Density Functional Theory Calculations and ⁵⁷Fe Mössbauer Spectroscopy

Journal Article Mineva, Tzonka ; Matanovic, Ivana Gonzales ; Atanassov, Plamen ; ... - ACS Catalysis

Pyrolyzed Fe–N–C materials are promising platinum-group-metal-free catalysts for proton-exchange membrane fuel cell cathodes. However, the detailed structure, oxidation, and spin states of their active sites are still undetermined. As such, ⁵⁷Fe Mössbauer spectroscopy has identified FeN _x moieties as the most active sites, with their fingerprint being a doublet in low-temperature Mössbauer spectra. However, the interpretation of the doublets for such materials has lacked theoretical basis. Here, we applied density functional theory to calculate the quadrupole splitting energy of doublets (Δ E _QS) for a range of FeN _x structures in different oxidation and spin states. The calculated and experimentalmore »« less
DOI: 10.1021/acscatal.9b02586
Superparamagnetic behavior of heat treated Mg{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4} ferrite nanoparticles studied by Mössbauer spectroscopy

Journal Article Srinivas, Ch., E-mail: srinivas.chintoju75@gmail.com ; Prasad, S. A. V. ; Singh, S. B. ; ... - AIP Conference Proceedings

Nanoparticles of Mg{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4} ferrite have been synthesized by co-precipitation method. XRD and Mössbauer spectroscopic results of Mg{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4} annealed at 200 °C, 500 °C and 800 °C are reported. It was observed that the crystallite size increases and the lattice parameter decreases with increase in annealing temperature. The observed decrease in lattice strain supports the increase in crystallite size. The Mössbauer spectra of the samples annealed at 200 °C and 500 °C exhibits superparamagnetic doublets whereas the Mössbauer spectrum of the sample annealed at 800 °C exhibits paramagnetic doublet along with weak sextetmore »« less
DOI: 10.1063/1.4947728
⁵⁷Fe Mössbauer study of Lu ₂Fe ₃Si ₅ iron silicide superconductor

Journal Article Ma, Xiaoming ; Ran, Sheng ; Pang, Hua ; ... - Journal of Physics and Chemistry of Solids

With the advent of Fe–As based superconductivity it has become important to study how superconductivity manifests itself in details of ⁵⁷Fe Mössbauer spectroscopy of conventional, Fe-bearing superconductors. The iron-based superconductor Lu ₂Fe ₃Si ₅ has been studied by ⁵⁷Fe Mössbauer spectroscopy over the temperature range from 4.4 K to room temperature with particular attention to the region close to the superconducting transition temperature (T _c=6.1 K). Consistent with the two crystallographic sites for Fe in this structure, the observed spectra appear to have a pattern consisting of two doublets over the whole temperature range. Furthermore, the value of Debye temperaturemore »« less
Cited by 1
DOI: 10.1016/j.jpcs.2015.03.021

Full Text Available
Synthesis, structural and electronic properties of monodispersed self-organized single crystalline nanobricks of isocubanite CuFe{sub 2}S{sub 3}

Journal Article Lyubutin, Igor S., E-mail: lyubutinig@mail.ru ; Lin, Chun-Rong ; Starchikov, Sergey S. ; ... - Journal of Solid State Chemistry

The nanoparticles with a pure cubic phase of isocubanite CuFe{sub 2}S{sub 3} are successfully synthesized for the first time. The particles are self-organized into the single crystalline nanocomposites with a shape of “bricks” which are well ordered in a certain anisotropic orientation. All bricks have nearly the same shape and dimensions and may be considered as monodispersed nanobricks. Magnetic measurements show paramagnetic behavior of the compound down to 4.2 K with the antiferromagnetic correlation between iron ions. An average magnetic moment is about 2.8–3.0 μ{sub B} per formula unit CuFe{sub 2}S{sub 3}. Mössbauer spectroscopy data reveal that the ferric ionsmore »« less
DOI: 10.1016/J.JSSC.2014.10.006

Similar Records

Title: On magnetic structure of CuFe 2Ge 2: Constrains from the 57Fe Mössbauer spectroscopy

Abstract

Citation Formats

Title: On magnetic structure of CuFe ₂Ge ₂: Constrains from the ⁵⁷Fe Mössbauer spectroscopy