Vibrational spectra and force field calculation of A2Mn2O7 (A = Y, Dy, Er, Yb) pyrochlores

Journal of Raman Spectroscopy

Volumn 34, Issue 3, 2003, Pages 240-243

  Brown, Sonal ^a   Gupta, H C ^a   Alonso, J A ^b   Martinez Lope, M J ^b  

^a INDIAN INSTITUTE OF TECHNOLOGY DELHI   (India)

^b INSTITUTO DE CIENCIA DE MATERIALES DE MADRID   (Spain)

Author keywords

Colossal magnetoresistance; Force field calculations; Lattice dynamic analysis; Pyrochlores; Short range force model

Indexed keywords

LATTICE VIBRATIONS;

DYNAMICS ANALYSIS; FORCE CONSTANTS; FORCE FIELD CALCULATIONS; FORCE MODELING; LATTICE DYNAMIC ANALYSE; PYROCHLORES; SHORT-RANGE FORCE MODEL; SHORT-RANGE FORCES; VIBRATIONAL FORCE; WAVE NUMBERS;

LATTICE CONSTANTS;

DYSPROSIUM; ERBIUM; MANGANESE OXIDE; PYROCHLOR DERIVATIVE; PYRONE DERIVATIVE; UNCLASSIFIED DRUG; YTTERBIUM; YTTRIUM;

ARTICLE; CALCULATION; CHEMICAL BINDING; EVALUATION; FORCE; INFRARED SPECTROSCOPY; MOLECULAR DYNAMICS; MOLECULAR MODEL; OBSERVATION; RAMAN SPECTROMETRY; SPECTROMETRY; VIBRATION;

EID: 0037347681     PISSN: 03770486     EISSN: None     Source Type: Journal    
DOI: 10.1002/jrs.982     Document Type: Article

References (17)

1. Alonso JA, Velasco P, Martinez-Lope MJ, Casais MT, Martinez JL. Appl. Phys. Let. 2000; 76: 3274.
2. Alonso JA, Martínez-Lope MJ, Casais MT, Velasco P, Martinez JL. Phys. Rev. B 1999; 60: R15024.
3. Ramirez AP. J. Phys. Condens. Matter. 1997; 9: 8171.
4. Shimakawa Y, Kubo Y, Manako T. Nature (London) 1996; 379: 53.
5. Shimakawa Y, Kubo Y, Hamada N, Jorgensen JD, Hu Z, Short S, Nohara M, Akagi H. Phys. Rev. B 1999; 59:1249.
6. Subramanian MA, Greedan JE, Raju NP, Ramirez AP, Sleight AW. J. Phys. IV 1997; 7: C1-625.
7. Granado E, Pagliuso PG, Sanjuijo JA, Rettori C, Subramanian MA, Cheong SW, Oseroff SB. Phys. Rev. B 1999; 60: 6513.
8. Massa NE, Pregliasco RG, Fainstein A, Salva H, Alonso JA, Martinez-Lope MJ, Casais MT. Phys. Status. Solidi B 2000; 220: 373.
9. Subramanian MA, Aravamudan G, Subba Rao GV. Prog. Solid. State Chem. 1983; 15: 55.
10. Bhagavantam S, Venkataryudu T. Proc. Indian Acad. Sci. A 1939; 224.
11. Shimanouchi T, Tsuiboi M, Miyazawa T. J. Chem. Phys. 1961; 35: 1597.
12. Gupta HC, Brown S, Rani N, Gohel VB. J. Raman Spectrosc. 2001; 32: 41.
13. Gupta HC, Brown S, Rani N, Gohel VB. Int. J. Inorg. Mater. 2001; 3: 983.
14. Gupta HC, Brown S, Rani N, Gohel VB. J. Phys. Chem. Solids 2002; 63: 535.
15. Vandenborre MT, Husson E, Chatry JP, Michel D. J. Raman Spectrosc. 1983; 14: 63.
16. Vandenborre MT, Husson EJ. Solid State Chem. 1983; 50: 362.
17. Glerup M, Nielson OF, Poulsen FW. J. Solid State Chem. 2001; 160: 25.