Stress-induced nematicity in EuFe2As2 studied by Raman spectroscopy

doi:10.1103/PhysRevB.94.014513

Title: Stress-induced nematicity in ${EuFe}_{2} {As}_{2}$ studied by Raman spectroscopy

Article Details
Other Related Research

Here, we use polarized Raman scattering to study the structural phase transition in EuFe ₂ As ₂, the parent compound of the 122-ferropnictide superconductors. The in-plane lattice anisotropy is characterized by measurements of the side surface with different strains induced by different preparation methods. We also show that while a fine surface polishing leaves the samples free of residual internal strain, in which case the onset of the C ₄ symmetry breaking is observed at the nominal structural phase transition temperature T _S , cutting the side surface induces a permanent fourfold rotational symmetry breaking spanning tens of degrees above T _S .

Authors:

Zhang, W. -L. ^[1] ; Sefat, Athena S. ^[2] ; Ding, H. ^[3] ; Richard, P. ^[3] ; Blumberg, G. ^[4]

Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics and Inst. of Physics; Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics and Inst. of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy; National Inst. of Chemical Physics and Biophysics, Tallinn (Estonia)

Publication Date:: 2016-07-18

Grant/Contract Number:: AC05-00OR22725; SC0005463

Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 94; Journal Issue: 1; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Research Org:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

OSTI Identifier:: 1360053

Alternate Identifier(s):: OSTI ID: 1263722


                    Zhang, W. -L., Sefat, Athena S., Ding, H., Richard, P., and Blumberg, G.. Stress-induced nematicity in EuFe2As2 studied by Raman spectroscopy.  United States: N. p.,  
        Web.  doi:10.1103/PhysRevB.94.014513.

Copy to clipboard


                    Zhang, W. -L., Sefat, Athena S., Ding, H., Richard, P., & Blumberg, G.. Stress-induced nematicity in EuFe2As2 studied by Raman spectroscopy.  United States.  doi:10.1103/PhysRevB.94.014513.

Copy to clipboard


                    Zhang, W. -L., Sefat, Athena S., Ding, H., Richard, P., and Blumberg, G.. 2016.  
        "Stress-induced nematicity in EuFe2As2 studied by Raman spectroscopy".  United States.  
        doi:10.1103/PhysRevB.94.014513.  https://www.osti.gov/servlets/purl/1360053.

Copy to clipboard


                    
@article{osti_1360053,

  title        = {Stress-induced nematicity in EuFe2As2 studied by Raman spectroscopy},

  author       = {Zhang, W. -L. and Sefat, Athena S. and Ding, H. and Richard, P. and Blumberg, G.},

  abstractNote = {Here, we use polarized Raman scattering to study the structural phase transition in EuFe 2 As 2 , the parent compound of the 122-ferropnictide superconductors. The in-plane lattice anisotropy is characterized by measurements of the side surface with different strains induced by different preparation methods. We also show that while a fine surface polishing leaves the samples free of residual internal strain, in which case the onset of the C 4 symmetry breaking is observed at the nominal structural phase transition temperature T S , cutting the side surface induces a permanent fourfold rotational symmetry breaking spanning tens of degrees above T S .},

  doi          = {10.1103/PhysRevB.94.014513},

  journal      = {Physical Review B},

  number       = 1,

  volume       = 94,

  place        = {United States},

  year         = {2016},

  month        = {7}

}

Copy to clipboard

Free Publicly Accessible Full Text
Accepted Manuscript (Publisher)
Accepted Manuscript (DOE)
Publisher's Version of Record
10.1103/PhysRevB.94.014513
https://doi.org/10.1103/PhysRevB.94.014513

Similar Records

Similar records in DOE PAGES and OSTI.GOV collections:

Stress-induced nematicity in ${EuFe}_{2} {As}_{2}$ studied by Raman spectroscopy

Journal Article Zhang, W. -L. ; Sefat, Athena S. ; Ding, H. ; ... July 2016 - Physical Review B

Full Text Available
Superconducting $B i_{2} Te$ : Pressure-induced universality in the ${(B i_{2})}_{m} {(B i_{2} T e_{3})}_{n}$ series

Journal Article Stillwell, Ryan L. ; Jenei, Zsolt ; Weir, Samuel T. ; ... March 2016 - Physical Review B

Using high-pressure magnetotransport techniques we have discovered superconductivity in Bi2Te, a member of the infinitely adaptive (Bi2)n(Bi2Te3)m series, whose end members, Bi and Bi2Te3, can be tuned to display topological surface states or superconductivity. Bi2Te has a maximum Tc= 8.6 K at P= 14.5 GPa and goes through multiple high pressure phase transitions, ultimately collapsing into a bcc structure that suggests a universal behavior across the series. High-pressure magnetoresistance and Hall measurements suggest a semi-metal to metal transition near 5.4 GPa, which accompanies the hexagonal to intermediate phase transition seen via x-ray diffraction measurements. In addition, the linearity of Hc2(T)more »« less
Cited by 2Full Text Available
Local twin domains and tip-voltage-induced domain switching of monoclinic $M_{C}$ phase in $Pb (M g_{1 / 3} N b_{2 / 3}) O_{3} - 0.34 PbTi O_{3}$ single crystal revealed by piezoresponse force microscopy

Journal Article Wang, Ruixue ; Yang, Bin ; Luo, Zhenlin ; ... August 2016 - Physical Review B

Here, the monoclinic (M) phases in high-performance relaxor-based ferroelectric single crystals have been recognized to be a vital structural factor for the outstanding piezoelectric property. However, due to the complexity of the structure in M phases, the understanding about it is still limited. In this paper, the local twin domains and tip-voltage-induced domain switching of the M _C phase in Pb(Mg _1/3Nb _2/3)O ₃ - 0.34PbTiO ₃ (PMN-0.34PT) single crystal have been intensively investigated by piezoresponse force microscopy (PFM). By theoretically analyzing the experimental patterns of domain walls on the (001) _C face, the specific M _C twin domains inmore »« less
Cited by 1Full Text Available
Phase diagram of superconductivity and antiferromagnetism in single crystals of Sr(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ and Sr $_{1 - y}$ Eu $_{y}$ (Fe $_{0.88}$ Co $_{0.12}$ ) $_{2}$ As $_{2}$

Journal Article Hu, Rongwei ; Bud’ko, Sergey L. ; Straszheim, Warren E. ; ... March 2011 - Physical Review B

Cited by 21Full Text Available
Anomalous nanoclusters, anisotropy, and electronic nematicity in the doped manganite $L a_{1 / 3} C a_{2 / 3} Mn O_{3}$

Journal Article Tao, J. ; Sun, K. ; Tranquada, J. M. ; ... June 2017 - Physical Review B

In doped manganites, a superlattice (SL) modulation associated with charge/orbital ordering is accepted as a key component in understanding many intriguing properties. It has been reported that the SL modulation always appears on the a axis of the crystals. Here in this study, by using multiple transmission electron microscopic techniques, we observe a type of anomalous nanocluster in which the SL modulation appears on the c axis of La _1/3Ca _2/3MnO ₃. By correlating the thermal evolution of the anomalous nanoclusters to other property measurements, we suggest that strain is responsible for the formation of the anomalous nanoclusters. The phasemore »« less
Cited by 1Full Text Available

Access journal articles and accepted manuscripts resulting from DOE research funding

Title: Stress-induced nematicity in EuFe 2 As 2 studied by Raman spectroscopy

Access journal articles and accepted manuscripts
resulting from DOE research funding

Title: Stress-induced nematicity in ${EuFe}_{2} {As}_{2}$ studied by Raman spectroscopy