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Title: Monoclinic 122-Type BaIr2Ge2 with a Channel Framework: A Structural Connection between Clathrate and Layered Compounds

Journal Article · · Materials
DOI: https://doi.org/10.3390/ma10070818 · OSTI ID:1425741
ORCiD logo [1];  [2];  [3];  [4];  [3];  [4]
  1. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Chemistry; Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803
  2. National Cheng Kung Univ., Tainan City (Taiwan). Dept. of Physics
  3. Princeton Univ., NJ (United States). Dept. of Chemistry
  4. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Chemistry

A new 122-type phase, monoclinic BaIr2Ge2 is successfully synthesized by arc melting; X-ray diffraction and scanning electron microscopy are used to purify the phase and determine its crystal structure. BaIr2Ge2 adopts a clathrate-like channel framework structure of the monoclinic BaRh2Si2-type, with space group P21/c. Structural comparisons of clathrate, ThCr2Si2, CaBe2Ge2, and BaRh2Si2 structure types indicate that BaIr2Ge2 can be considered as an intermediate between clathrate and layered compounds. Magnetic measurements show it to be diamagnetic and non-superconducting down to 1.8 K. Different from many layered or clathrate compounds, monoclinic BaIr2Ge2 displays a metallic resistivity. Electronic structure calculations performed for BaIr2Ge2 support its observed structural stability and physical properties.

Research Organization:
Princeton Univ., NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Louisiana State Univ., Baton Rouge, LA (United States); Ministry of Science and Technology (MOST) (Taiwan); National Cheng Kung Univ., Tainan City (Taiwan)
Grant/Contract Number:
FG02-98ER45706
OSTI ID:
1425741
Journal Information:
Materials, Journal Name: Materials Journal Issue: 7 Vol. 10; ISSN 1996-1944; ISSN MATEG9
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Darstellung und Kristallstruktur neuer AM2X2-Verbindungen in den Systemen Erdalkalimetall-Platinmetall-Germanium journal January 1993
Synthesis, Structure and Chemical Bonding of CaCo 2 Si 2 and BaCo 2 Ge 2 - Two New Compounds with ThCr 2 Si 2 Structure Type journal February 2010
Structure and Thermoelectric Properties of Ba6Ge25−x, Ba6Ge23Sn2, and Ba6Ge22In3: Zintl Phases with a Chiral Clathrate Structure journal September 2000
Contribution à la cristallochimie des isotypes de ThCr2Si2 et CaBe2Ge2 journal March 1989
Clathrate formation in the systems Ba–Ir–Ge and Ba-{Rh, Ir}-Si: Crystal chemistry and phase relations journal May 2013
Crystal structure of ternary germanides SrM2Ge2 (M=Ni and Ir) journal November 2009
Superconducting, Fermi surface, and magnetic properties in SrTGe3 and EuTGe3 (T: transition metal) with the Rashba-type tetragonal structure journal February 2017
Pressure-induced superconductivity in without inversion symmetry journal March 2007
Ternary systems Sr–{Ni,Cu}–Si: Phase equilibria and crystal structure of ternary phases journal March 2010
Synthesis, structure and chemical bonding of CaFe2−xRhxSi2 (x=0, 1.32, and 2) and SrCo2Si2 journal July 2013
Making and Breaking Bonds in the Solid State: The ThCr 2 Si 2 Structure journal September 1985
The s p Bonded Representatives of the Prominent BaAl 4 Structure Type:  A Case Study on Structural Stability of Polar Intermetallic Network Structures journal April 2002
Discovery of charge density wave in a kagome lattice antiferromagnet journal September 2022
Crystal structure of the new FeSe1−x superconductor journal January 2008
Saddle-point states and energy barriers for vortex entrance and exit in superconducting disks and rings journal March 2001
Generalized Gradient Approximation Made Simple journal October 1996
A short history of SHELX journal December 2007
Crystallographic Computing System JANA2006: General features journal January 2014
Coexistence of Superconductivity and Charge Density Wave in SrPt2As2 text January 2010
Darstellung und Kristallstruktur neuer AM2X2-Verbindungen in den Systemen Erdalkalimetall-Platinmetall-Germanium journal January 1993
Die isotypen Verbindungen BaRh2Si2, BaIr2Si2 und BaPt2Ga2 - eine monokline Verzerrungsvariante der CaRh2B2-Struktur journal October 1997
Synthesis, Structure and Chemical Bonding of CaCo 2 Si 2 and BaCo 2 Ge 2 - Two New Compounds with ThCr 2 Si 2 Structure Type journal February 2010
Structure and Thermoelectric Properties of Ba6Ge25−x, Ba6Ge23Sn2, and Ba6Ge22In3: Zintl Phases with a Chiral Clathrate Structure journal September 2000
Contribution à la cristallochimie des isotypes de ThCr2Si2 et CaBe2Ge2 journal March 1989
X-ray single crystal refinements on some RT2Ge2 compounds (R = Ca, Y, La, Nd, U; T = Mn-Cu, Ru-Pd): evolution of the chemical bonds journal March 1996
Superconductivity and crystal structure of the solid solutions of Ba8−δSi46−xGex (0⩽x⩽23) with Type I clathrate structure journal November 2003
Clathrate formation in the systems Ba–Ir–Ge and Ba-{Rh, Ir}-Si: Crystal chemistry and phase relations journal May 2013
Crystal structure of ternary germanides SrM2Ge2 (M=Ni and Ir) journal November 2009
Superconducting, Fermi surface, and magnetic properties in SrTGe3 and EuTGe3 (T: transition metal) with the Rashba-type tetragonal structure journal February 2017
Pressure-induced superconductivity in without inversion symmetry journal March 2007
Ternary systems Sr–{Ni,Cu}–Si: Phase equilibria and crystal structure of ternary phases journal March 2010
Synthesis, structure and chemical bonding of CaFe2−xRhxSi2 (x=0, 1.32, and 2) and SrCo2Si2 journal July 2013
Unusually High Chemical Compressibility of Normally Rigid Type-I Clathrate Framework:  Synthesis and Structural Study of Sn 24 P 19.3 Br x I 8 - x Solid Solution, the Prospective Thermoelectric Material journal May 2004
Ordered BaAl 4 -Type Variants in the BaAu x Sn 4– x System: A Unified View on Their Phase Stabilities versus Valence Electron Counts journal May 2014
Making and Breaking Bonds in the Solid State: The ThCr 2 Si 2 Structure journal September 1985
Donor-acceptor layer formation and lattice site preference in the solid: the CaBe2Ge2 structure journal May 1986
The s p Bonded Representatives of the Prominent BaAl 4 Structure Type:  A Case Study on Structural Stability of Polar Intermetallic Network Structures journal April 2002
A Transition from Localized to Strongly Correlated Electron Behavior and Mixed Valence Driven by Physical or Chemical Pressure in ACo 2 As 2 (A = Eu and Ca) journal February 2016
Crystal structure of the new FeSe1−x superconductor journal January 2008
Inhomogeneous Electron Gas journal November 1964
Saddle-point states and energy barriers for vortex entrance and exit in superconducting disks and rings journal March 2001
CePt 3 Si : An unconventional superconductor without inversion center journal March 2004
Magnetism driven by anion vacancies in superconducting α -FeSe 1 − x journal November 2008
Superconductivity at 38 K in the Iron Arsenide ( Ba 1 − x K x ) Fe 2 As 2 journal September 2008
Generalized Gradient Approximation Made Simple journal October 1996
A short history of SHELX journal December 2007
Superconductivity under High Pressure in LaFeAsO journal November 2008
Coexistence of Superconductivity and Charge Density Wave in SrPt 2 As 2 journal December 2010
Crystallographic Computing System JANA2006: General features journal January 2014
Ternäre Erdalkali-Beryllium-Silicide und -Germanide mit AlB2-Struktur. Ternary Alkaline-Earth-Beryllium-Silicides and -Germanides of AlB2-Structure journal June 1974
Notizen: Neue Verbindungen AB2X2 (A = Erdalkalimetall, B = Übergangselement, X = Element(IV)) im ThCr2Si2-Typ / New Compounds of the ThCr2Si2-Structure Type journal June 1976

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