Structure and phase transition of CaGe2O5 revisited

Physics and Chemistry of Minerals

Volumn 31, Issue 4, 2004, Pages 224-231

  Malcherek, T ^a   Bosenick, A ^b  

^a Mineralogisches Institut   (Germany)

^b UNIVERSITY OF MÜNSTER   (Germany)

Author keywords

Displacive; Microstrain; Phase transition; Sphene; Titanite

Indexed keywords

ELECTRONIC STRUCTURE; LATTICE CONSTANTS; OPTIMIZATION; PROBABILITY DENSITY FUNCTION; SPECIFIC HEAT; STRAIN; X RAY POWDER DIFFRACTION;

SECOND-ORDER PHASE TRANSITION; WEAK HEAT CAPACITY ANOMALY;

PHASE TRANSITIONS;

CRYSTAL STRUCTURE; PHASE TRANSITION; TITANITE;

EID: 2442592789     PISSN: 03421791     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00269-003-0364-9     Document Type: Article

References (19)

1. 5. Am Mineral 82: 836-839
2. Angel RJ, Ross NL, Seifert F, Fliervoet TF (1996) Structural characterization of pentacoordinate silicon in a calcium silicate. Nature 384: 441-444
3. 5. Z Kristallogr 144:82-90
4. Blaha P, Schwarz K, Madsen GKH, Kvasnicka D, Luitz J (2001) WIEN2k, an augmented plane wave + local orbitals program for calculating crystal properties. Karlheinz Schwarz, Techn. Universität Wien, Austria. ISBN 3-9501031-1-2
5. Bosenick A, Geiger CA, Cemič L (1996) Heat-capacity measurements of synthetic pyrope-grossular garnets between 320 and 1000 K by differential scanning calorimetry. Geoch Cosmoch Acta 60: 3215-3227
6. Cammenga HK, Eysel W, Gmelin W, Hemminger W, Höhne WGH, Sarge SM (1992) Die Temperaturkalibrierung dynamischer Kalorimeter II. Kalibriersubstanzen. PTB Mitteilungen 102: 13-18
7. Carpenter MA, Salje EKH (1998) Elastic anomalies in minerals due to structural phase transitions. Eur J Mineral 10: 693-812
8. Carpenter MA, Salje EKH, Graeme-Barber A (1998) Spontaneous strain as a determinant of thermodynamic properties for phase transitions in minerals. Eur J Mineral 10: 621-691
9. 3 (NBS heat capacity and enthalpy reference material no. 720) from 273 to 1173 K. J Res NBS (A) Phys Chem 75: 401-420
10. Finger LW, Cox DE, Jephcoat AP (1994) A correction for powder diffraction peak asymmetry due to axial divergence. J Appl Crystallogr 27: 892-900
11. Groat LA, Raudsepp M, Hawthorne FC, Ercit TS, Sherriff BL, Hartman JS (1990) The amblygonite-montebrasite series: characterization by single-crystal structure refinement, infrared spectroscopy, and multinuclear MAS-NMR spectroscopy. Am Mineral 75: 992-1008
12. Larson A, Von Dreele R (1994) General structure analysis system (GSAS). Tech Rep LAUR B6-748, Los Alamos National Laboratory Report, Los Alamos, New Mexico
13. McAdie HG, Garn PD, Menis O (1972) Standard reference materials: selection of differential scanning analysis temperature standards through a cooperative study. NBS, Special Publication: 260-40. SRM 758, 759, 760
14. 4. Miner Petrogr Acta 14: 123-141
15. Mraw SC (1988) Differential scanning calorimetry. In: Ho CY (ed), Data series on material properties, vols. 1-2, chap 11 pp 395-437
16. 5 - a germanium analog of sphere. Sov Phys Dokl 24: 415-416
17. Perdew JP, Burke S, Ernzerhof M (1996) Generalized gradient approximation made simple. Phys Rev Lett 77: 3865-3868
18. Stephens PW (1999) Phenomenological model of anisotropic peak broadening in powder diffraction. J Appl Crystallogr 32: 281-289
19. 5. Am Mineral 61: 435-447