perovskite atlas Structures, modes and phase transitions · Josu M. Igartua · UPV/EHU

Reported geometry of Sr2Co0.8Mg0.2TeO6 at 300 K

Reported geometry of Sr2Co0.8Mg0.2TeO6 at 300 K

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9 keys }
  "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry"
  "changelog" 1 items ],
     3 keys }
      "timestamp""2026-09-30T05:59:03+00:00"
      "user""perovskite-atlas/fer_export.py"
      "description""Geometry. Generated from atlas records at git 98609f0."
    
  
  "description""Reported geometry of Sr2Co0.8Mg0.2TeO6 at 300 K"
  "correct"true
  "state" 1 items ],
     3 keys }
      "name""temperature"
      "description""conditions of the refined structure"
      "quantity_value" 9 keys }
        "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#T"
        "name""Temperature"
        "description""Temperature of the measurement as reported (uncertainty not reported)"
        "quantities""Temperature"
        "symbols""$T$"
        "units""K"
        "values" 1 items ],
          300.0
        
        "standard_uncertainties" 1 items ],
          0.0
        
        "atlas" 2 keys }
          "uncertainty_reported"false
          "reported_as""300"
        
      
    
  
  "results" 4 items ],
     9 keys },
      "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry#bonds"
      "name""Bond lengths"
      "description"""
      "quantities""Co/Mg-O1(×4)""Co/Mg-O2(×2)""Te-O1(×4)""Te-O2(×2)"
      "symbols""$d(Co/Mg-O1(×4))$""$d(Co/Mg-O2(×2))$""$d(Te-O1(×4))$""$d(Te-O2(×2))$"
      "units""Å""Å""Å""Å"
      "values" 4 items ],
        2.027
        2.03
        1.977
        1.986
      
      "standard_uncertainties" 4 items ],
        0.001
        0.002
        0.001
        0.002
      
      "atlas" 2 keys }
        "uncertainty_reported"truetruetruetrue
        "reported_as""2.027(1)""2.030(2)""1.977(1)""1.986(2)"
      
    
     9 keys },
      "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry#angles"
      "name""Bond angles"
      "description"""
      "quantities""O1-Co/Mg-O2""O1-Co/Mg-O3(×2)""O1-Te-O2""O1-Te-O3(×2)""Co/Mg-O1-Te""Co/Mg-O2-Te(×2)"
      "symbols""$\\angle(O1-Co/Mg-O2)$""$\\angle(O1-Co/Mg-O3(×2))$""$\\angle(O1-Te-O2)$""$\\angle(O1-Te-O3(×2))$""$\\angle(Co/Mg-O1-Te)$""$\\angle(Co/Mg-O2-Te(×2))$"
      "units""°""°""°""°""°""°"
      "values" 6 items ],
        89.9
        90.1
        89.9
        90.2
        165.6
        159.6
      
      "standard_uncertainties" 6 items ],
        0.1
        0.1
        0.30000000000000004
        0.1
        0.5
        0.2
      
      "atlas" 2 keys }
        "uncertainty_reported"truetruetruetruetruetrue
        "reported_as""89.9(1)""90.1(1)""89.9(3)""90.2(1)""165.6(5)""159.6(2)"
      
    
     9 keys },
      "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry#octahedron:Co/MgO6"
      "name""Octahedron Co/MgO6"
      "description"""
      "quantities""average_bond""predicted_bond"
      "symbols""$average_bond$""$predicted_bond$"
      "units""Å""Å"
      "values" 2 items ],
        2.026
        2.0985
      
      "standard_uncertainties" 2 items ],
        0.003
        0.0
      
      "atlas" 2 keys }
        "uncertainty_reported"truefalse
        "reported_as""2.026(3)""2.0985"
      
    
     9 keys }
      "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry#octahedron:TeO6"
      "name""Octahedron TeO6"
      "description"""
      "quantities""average_bond""predicted_bond"
      "symbols""$average_bond$""$predicted_bond$"
      "units""Å""Å"
      "values" 2 items ],
        1.981
        1.917
      
      "standard_uncertainties" 2 items ],
        0.006
        0.0
      
      "atlas" 2 keys }
        "uncertainty_reported"truefalse
        "reported_as""1.981(6)""1.9170"
      
    
  
  "measurands""bond lengths""bond angles""bond-valence sums"
  "source" 6 keys },
    "id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry#derivation"
    "name""Geometry derived from the refined structure"
    "description"""
    "model""Interatomic distances, angles and bond-valence sums computed from the refined coordinates and cell (as reported in the source document)"
    "influence_quantities"
    "input_quantities" 1 items ]
       9 keys }
        "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015"
        "changelog" 1 items ],
           3 keys }
            "timestamp""2026-09-30T05:59:03+00:00"
            "user""perovskite-atlas/fer_export.py"
            "description""Refined structure. Generated from atlas records at git 98609f0."
          
        
        "description""Refined crystal structure of Sr2Co0.8Mg0.2TeO6 at 300 K, I2/m"
        "correct"true
        "state" 1 items ],
           3 keys }
            "name""temperature"
            "description""conditions of the refined structure"
            "quantity_value" 9 keys }
              "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#T"
              "name""Temperature"
              "description""Temperature of the measurement as reported (uncertainty not reported)"
              "quantities""Temperature"
              "symbols""$T$"
              "units""K"
              "values" 1 items ],
                300.0
              
              "standard_uncertainties" 1 items ],
                0.0
              
              "atlas" 2 keys }
                "uncertainty_reported"false
                "reported_as""300"
              
            
          
        
        "results" 8 items ],
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#cell"
            "name""Unit cell"
            "description""Cell parameters, space group I2/m (No. 12)"
            "quantities""a""b""c""alpha""beta""gamma"
            "symbols""$a$""$b$""$c$""$\\alpha$""$\\beta$""$\\gamma$"
            "units""Å""Å""Å""°""°""°"
            "values" 6 items ],
              5.6302
              5.5986
              7.9078
              90.0
              89.985
              90.0
            
            "standard_uncertainties" 6 items ],
              0.0004
              0.0004
              0.0005
              0.0
              0.006
              0.0
            
            "atlas" 2 keys }
              "uncertainty_reported"truetruetruefalsetruefalse
              "reported_as""5.6302(4)""5.5986(4)""7.9078(5)""90""89.985(6)""90"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#volume"
            "name""Cell volume"
            "description"""
            "quantities""V"
            "symbols""$V$"
            "units""Å^3"
            "values" 1 items ],
              249.28
            
            "standard_uncertainties" 1 items ],
              0.03
            
            "atlas" 2 keys }
              "uncertainty_reported"true
              "reported_as""249.28(3)"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#atom:Sr"
            "name""Atom Sr (Sr, Wyckoff 4i)"
            "description""Fractional coordinates and isotropic displacement; occupancy 1"
            "quantities""x""y""z""B_iso"
            "symbols""$x$""$y$""$z$""$B_{\\mathrm{iso}}$"
            "units""1""1""1""Å^2"
            "values" 4 items ],
              0.001
              0.5
              -0.7533
              0.94
            
            "standard_uncertainties" 4 items ],
              0.003
              0.0
              0.0007
              0.02
            
            "atlas" 2 keys }
              "uncertainty_reported"truefalsetruetrue
              "reported_as""0.001(3)""0.5""-0.7533(7)""0.94(2)"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#atom:O1"
            "name""Atom O1 (O, Wyckoff 8j)"
            "description""Fractional coordinates and isotropic displacement; occupancy 1"
            "quantities""x""y""z""B_iso"
            "symbols""$x$""$y$""$z$""$B_{\\mathrm{iso}}$"
            "units""1""1""1""Å^2"
            "values" 4 items ],
              0.223
              0.271
              -0.023
              1.06
            
            "standard_uncertainties" 4 items ],
              0.004
              0.004
              0.004
              0.0
            
            "atlas" 2 keys }
              "uncertainty_reported"truetruetruefalse
              "reported_as""0.223(4)""0.271(4)""-0.023(4)""1.06"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#atom:O2"
            "name""Atom O2 (O, Wyckoff 4i)"
            "description""Fractional coordinates and isotropic displacement; occupancy 1"
            "quantities""x""y""z""B_iso"
            "symbols""$x$""$y$""$z$""$B_{\\mathrm{iso}}$"
            "units""1""1""1""Å^2"
            "values" 4 items ],
              0.057
              0.0
              -0.743
              1.06
            
            "standard_uncertainties" 4 items ],
              0.007
              0.0
              0.004
              0.0
            
            "atlas" 2 keys }
              "uncertainty_reported"truefalsetruefalse
              "reported_as""0.057(7)""0""-0.743(4)""1.06"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#atom:Te"
            "name""Atom Te (Te, Wyckoff 2a)"
            "description""Fractional coordinates and isotropic displacement; occupancy 1"
            "quantities""x""y""z""B_iso"
            "symbols""$x$""$y$""$z$""$B_{\\mathrm{iso}}$"
            "units""1""1""1""Å^2"
            "values" 4 items ],
              0.0
              0.0
              0.0
              1.62
            
            "standard_uncertainties" 4 items ],
              0.0
              0.0
              0.0
              0.02
            
            "atlas" 2 keys }
              "uncertainty_reported"falsefalsefalsetrue
              "reported_as""0""0""0""1.62(2)"
            
          
           9 keys },
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#atom:Co/Mg"
            "name""Atom Co/Mg (Co, Wyckoff 2d)"
            "description""Fractional coordinates and isotropic displacement; occupancy 0.8/0.2 (Co/Mg)"
            "quantities""x""y""z""B_iso"
            "symbols""$x$""$y$""$z$""$B_{\\mathrm{iso}}$"
            "units""1""1""1""Å^2"
            "values" 4 items ],
              0.0
              0.0
              0.5
              1.62
            
            "standard_uncertainties" 4 items ],
              0.0
              0.0
              0.0
              0.02
            
            "atlas" 2 keys }
              "uncertainty_reported"falsefalsefalsetrue
              "reported_as""0""0""0.5""1.62(2)"
            
          
           9 keys }
            "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#reliability"
            "name""Rietveld reliability factors"
            "description""As reported; no uncertainties"
            "quantities""chi2"
            "symbols""$\\chi^2$"
            "units""1"
            "values" 1 items ],
              6.57
            
            "standard_uncertainties" 1 items ],
              0.0
            
            "atlas" 2 keys }
              "uncertainty_reported"false
              "reported_as""6.57"
            
          
        
        "measurands""unit cell""atomic coordinates""displacement parameters"
        "source" 6 keys },
          "id""ref:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.all-modes"
          "name""Rietveld refinement (FullProf, symmetry-mode)"
          "description"""
          "model""Least-squares Rietveld refinement of the powder pattern; symmetry-mode parametrisation where method = symmetry-mode; variant all-modes"
          "influence_quantities" 1 items ],
             9 keys }
              "id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015#T"
              "name""Temperature"
              "description""Temperature of the measurement as reported (uncertainty not reported)"
              "quantities""Temperature"
              "symbols""$T$"
              "units""K"
              "values" 1 items ],
                300.0
              
              "standard_uncertainties" 1 items ],
                0.0
              
              "atlas" 2 keys }
                "uncertainty_reported"false
                "reported_as""300"
              
            
          
          "input_quantities" 1 items ]
             9 keys }
              "id""dat:sr2co0.8mg0.2teo6.orayech2015.xrpd.rt"
              "changelog" 1 items ],
                 3 keys }
                  "timestamp""2026-09-30T05:59:03+00:00"
                  "user""perovskite-atlas/fer_export.py"
                  "description""Dataset stub. Generated from atlas records at git 98609f0."
                
              
              "description""XRPD pattern of mat:sr2co0.8mg0.2teo6 at 300 K on Laboratory X-ray powder diffractometer (Cu Kα) (UPV/EHU)"
              "correct"true
              "state"
              "results"
              "measurands""diffraction pattern"
              "source" 6 keys },
                "id""ins:lab-xrd"
                "name""Laboratory X-ray powder diffractometer (Cu Kα)"
                "description"""
                "model""powder diffraction"
                "influence_quantities"
                "input_quantities"
              
              "atlas" 5 keys }
                "record_id""dat:sr2co0.8mg0.2teo6.orayech2015.xrpd.rt"
                "status""published"
                "evidence" 1 items ],
                   5 keys }
                    "doc""doc:thesis-04"
                    "md_line"2002
                    "table""9.3"
                    "status""thesis-only"
                    "cell" 1 keys }
                      "col""Sr2Co0.8Mg0.2TeO6"
                    
                  
                
                "atlas_schema_version""0.1"
                "note""raw pattern not yet attached; results are empty by design until data rescue"
              
            
          
        
        "atlas" 5 keys }
          "record_id""str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015"
          "status""published"
          "evidence" 1 items ],
             5 keys }
              "doc""doc:thesis-04"
              "md_line"2002
              "table""9.3"
              "status""thesis-only"
              "cell" 1 keys }
                "col""Sr2Co0.8Mg0.2TeO6"
              
            
          
          "atlas_schema_version""0.1"
          "refinement" 4 keys }
            "record_id""ref:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.all-modes"
            "status""published"
            "evidence" 1 items ],
               5 keys }
                "doc""doc:thesis-04"
                "md_line"2002
                "table""9.3"
                "status""thesis-only"
                "cell" 1 keys }
                  "col""Sr2Co0.8Mg0.2TeO6"
                
              
            
            "atlas_schema_version""0.1"
          
        
      
    
  
  "atlas" 4 keys }
    "record_id""fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry"
    "status""published"
    "evidence" 1 items ],
       5 keys }
        "doc""doc:thesis-04"
        "md_line"2042
        "table""9.4"
        "status""thesis-only"
        "cell" 1 keys }
          "col""Sr2Co0.8Mg0.2TeO6"
        
      
    
    "atlas_schema_version""0.1"
  

id fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry · correct true · measurands bond lengths, bond angles, bond-valence sums

State

Temperature · Temperature of the measurement as reported (uncertainty not reported)

quantity symbol value u (standard) unit
Temperature T 300 0 K not reported

Results

Bond lengths

quantity symbol value u (standard) unit
Co/Mg-O1(×4) d(Co/Mg-O1(×4)) 2.027 0.001 Å
Co/Mg-O2(×2) d(Co/Mg-O2(×2)) 2.030 0.002 Å
Te-O1(×4) d(Te-O1(×4)) 1.977 0.001 Å
Te-O2(×2) d(Te-O2(×2)) 1.986 0.002 Å

Bond angles

quantity symbol value u (standard) unit
O1-Co/Mg-O2 \angle(O1-Co/Mg-O2) 89.9 0.1 °
O1-Co/Mg-O3(×2) \angle(O1-Co/Mg-O3(×2)) 90.1 0.1 °
O1-Te-O2 \angle(O1-Te-O2) 89.9 0.3 °
O1-Te-O3(×2) \angle(O1-Te-O3(×2)) 90.2 0.1 °
Co/Mg-O1-Te \angle(Co/Mg-O1-Te) 165.6 0.5 °
Co/Mg-O2-Te(×2) \angle(Co/Mg-O2-Te(×2)) 159.6 0.2 °

Octahedron Co/MgO6

quantity symbol value u (standard) unit
average_bond average_bond 2.026 0.003 Å
predicted_bond predicted_bond 2.0985 0 Å not reported

Octahedron TeO6

quantity symbol value u (standard) unit
average_bond average_bond 1.981 0.006 Å
predicted_bond predicted_bond 1.9170 0 Å not reported

Source

Geometry derived from the refined structure · model: Interatomic distances, angles and bond-valence sums computed from the refined coordinates and cell (as reported in the source document)

Input quantities

str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015 · Refined crystal structure of Sr2Co0.8Mg0.2TeO6 at 300 K, I2/m · own page

id str:sr2co0.8mg0.2teo6.i2m.300k.orayech2015 · correct true · measurands unit cell, atomic coordinates, displacement parameters

State

Temperature · Temperature of the measurement as reported (uncertainty not reported)

quantity symbol value u (standard) unit
Temperature T 300 0 K not reported

Results

Unit cell · Cell parameters, space group I2/m (No. 12)

quantity symbol value u (standard) unit
a a 5.6302 0.0004 Å
b b 5.5986 0.0004 Å
c c 7.9078 0.0005 Å
alpha \alpha 90 0 ° not reported
beta \beta 89.985 0.006 °
gamma \gamma 90 0 ° not reported

Cell volume

quantity symbol value u (standard) unit
V V 249.28 0.03 ų

Atom Sr (Sr, Wyckoff 4i) · Fractional coordinates and isotropic displacement; occupancy 1

quantity symbol value u (standard) unit
x x 0.001 0.003
y y 0.5 0 not reported
z z -0.7533 0.0007
B_iso B_{\mathrm{iso}} 0.94 0.02 Ų

Atom O1 (O, Wyckoff 8j) · Fractional coordinates and isotropic displacement; occupancy 1

quantity symbol value u (standard) unit
x x 0.223 0.004
y y 0.271 0.004
z z -0.023 0.004
B_iso B_{\mathrm{iso}} 1.06 0 Ų not reported

Atom O2 (O, Wyckoff 4i) · Fractional coordinates and isotropic displacement; occupancy 1

quantity symbol value u (standard) unit
x x 0.057 0.007
y y 0 0 not reported
z z -0.743 0.004
B_iso B_{\mathrm{iso}} 1.06 0 Ų not reported

Atom Te (Te, Wyckoff 2a) · Fractional coordinates and isotropic displacement; occupancy 1

quantity symbol value u (standard) unit
x x 0 0 not reported
y y 0 0 not reported
z z 0 0 not reported
B_iso B_{\mathrm{iso}} 1.62 0.02 Ų

Atom Co/Mg (Co, Wyckoff 2d) · Fractional coordinates and isotropic displacement; occupancy 0.8/0.2 (Co/Mg)

quantity symbol value u (standard) unit
x x 0 0 not reported
y y 0 0 not reported
z z 0.5 0 not reported
B_iso B_{\mathrm{iso}} 1.62 0.02 Ų

Rietveld reliability factors · As reported; no uncertainties

quantity symbol value u (standard) unit
chi2 \chi^2 6.57 0 not reported

Source

Rietveld refinement (FullProf, symmetry-mode) · model: Least-squares Rietveld refinement of the powder pattern; symmetry-mode parametrisation where method = symmetry-mode; variant all-modes

Influence quantities

Temperature · Temperature of the measurement as reported (uncertainty not reported)

quantity symbol value u (standard) unit
Temperature T 300 0 K not reported

Input quantities

dat:sr2co0.8mg0.2teo6.orayech2015.xrpd.rt · XRPD pattern of mat:sr2co0.8mg0.2teo6 at 300 K on Laboratory X-ray powder diffractometer (Cu Kα) (UPV/EHU)

id dat:sr2co0.8mg0.2teo6.orayech2015.xrpd.rt · correct true · measurands diffraction pattern

Results

Empty (no results attached yet).

Source

Laboratory X-ray powder diffractometer (Cu Kα) · model: powder diffraction

Changelog

timestamp user description
2026-09-30T05:59:03+00:00 perovskite-atlas/fer_export.py Dataset stub. Generated from atlas records at git 98609f0.

Changelog

timestamp user description
2026-09-30T05:59:03+00:00 perovskite-atlas/fer_export.py Refined structure. Generated from atlas records at git 98609f0.

Changelog

timestamp user description
2026-09-30T05:59:03+00:00 perovskite-atlas/fer_export.py Geometry. Generated from atlas records at git 98609f0.

Atlas extension

record fnd:sr2co0.8mg0.2teo6.i2m.300k.orayech2015.geometry · status published