Structural and physical properties of CaFe2As2

H. L. Shi; H. X. Yang; H. F. Tian; C. Ma; J. B. Lu; Z. W. Wang; Y. B. Qin; Y. J. Song; J. Q. Li

doi:10.1016/j.jpcs.2010.10.008

Structural and physical properties of CaFe₂As₂

H. L. Shi
, H. X. Yang
, H. F. Tian
, C. Ma
, J. B. Lu
, Z. W. Wang
, Y. B. Qin
, Y. J. Song
, J. Q. Li

CAS - Institute of Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Polycrystalline and single crystalline samples of CaFe₂As ₂ were prepared by using different fabrication routes. These samples show evident differences in both phase transition temperatures and transport properties depending on fabrication conditions. TEM observations reveal a rich variety of structural phenomena in these materials, such as a tweed-like pattern in self-flux samples, a structural modulation along the 〈1 1 0〉_tetra direction in the polycrystalline sample, and complex dislocation networks in the Sn-flux samples. Careful analysis shows that the twinning domains arising from the tetragonal-to-orthorhombic phase transition belong to the δ-type.

Original language	English
Pages (from-to)	420-422
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	72
Issue number	5
DOIs	https://doi.org/10.1016/j.jpcs.2010.10.008
Publication status	Published - May 2011
Externally published	Yes

Keywords

C. Electron microscopy
D. Defects
D. Microstructure
D. Phase transitions
D. Spin-density waves

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10.1016/j.jpcs.2010.10.008

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title = "Structural and physical properties of CaFe2As2",

abstract = "Polycrystalline and single crystalline samples of CaFe2As 2 were prepared by using different fabrication routes. These samples show evident differences in both phase transition temperatures and transport properties depending on fabrication conditions. TEM observations reveal a rich variety of structural phenomena in these materials, such as a tweed-like pattern in self-flux samples, a structural modulation along the 〈1 1 0〉tetra direction in the polycrystalline sample, and complex dislocation networks in the Sn-flux samples. Careful analysis shows that the twinning domains arising from the tetragonal-to-orthorhombic phase transition belong to the δ-type.",

keywords = "C. Electron microscopy, D. Defects, D. Microstructure, D. Phase transitions, D. Spin-density waves",

author = "Shi, \{H. L.\} and Yang, \{H. X.\} and Tian, \{H. F.\} and C. Ma and Lu, \{J. B.\} and Wang, \{Z. W.\} and Qin, \{Y. B.\} and Song, \{Y. J.\} and Li, \{J. Q.\}",

year = "2011",

month = may,

doi = "10.1016/j.jpcs.2010.10.008",

language = "English",

volume = "72",

pages = "420--422",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Structural and physical properties of CaFe2As2

AU - Shi, H. L.

AU - Yang, H. X.

AU - Tian, H. F.

AU - Ma, C.

AU - Lu, J. B.

AU - Wang, Z. W.

AU - Qin, Y. B.

AU - Song, Y. J.

AU - Li, J. Q.

PY - 2011/5

Y1 - 2011/5

N2 - Polycrystalline and single crystalline samples of CaFe2As 2 were prepared by using different fabrication routes. These samples show evident differences in both phase transition temperatures and transport properties depending on fabrication conditions. TEM observations reveal a rich variety of structural phenomena in these materials, such as a tweed-like pattern in self-flux samples, a structural modulation along the 〈1 1 0〉tetra direction in the polycrystalline sample, and complex dislocation networks in the Sn-flux samples. Careful analysis shows that the twinning domains arising from the tetragonal-to-orthorhombic phase transition belong to the δ-type.

AB - Polycrystalline and single crystalline samples of CaFe2As 2 were prepared by using different fabrication routes. These samples show evident differences in both phase transition temperatures and transport properties depending on fabrication conditions. TEM observations reveal a rich variety of structural phenomena in these materials, such as a tweed-like pattern in self-flux samples, a structural modulation along the 〈1 1 0〉tetra direction in the polycrystalline sample, and complex dislocation networks in the Sn-flux samples. Careful analysis shows that the twinning domains arising from the tetragonal-to-orthorhombic phase transition belong to the δ-type.

KW - C. Electron microscopy

KW - D. Defects

KW - D. Microstructure

KW - D. Phase transitions

KW - D. Spin-density waves

UR - https://www.scopus.com/pages/publications/79955751086

U2 - 10.1016/j.jpcs.2010.10.008

DO - 10.1016/j.jpcs.2010.10.008

M3 - Article

AN - SCOPUS:79955751086

SN - 0022-3697

VL - 72

SP - 420

EP - 422

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 5

ER -

Structural and physical properties of CaFe₂As₂

Abstract

Keywords

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