Robert KALENDAREV was born on December 15th, 1941 in Kokand (Uzbekistan). In 1949 he joined the secondary school which he graduated in 1959.

From 1959, Dr. Robert Kalendarev has studied at the Physics Department of the University of Latvia, which he has graduated in 1964. His Msc thesis was devoted to studies of photostimulated exoelectron emission from irradiated ionic crystals.

From 1966, he worked at University of Latvia. He has maintained his Ph.D. thesis in 1973. The title of the thesis was "Influence of Defects on Photoelectrical Properties of Tetracene and Tetraoxotetracene". From 1975 his scientific activities are concerned with studies of photostimulated structural changes in molecular amorphous and crystalline solids (yellow arsenic and white phosphorus). In these studies differential thermic analysis, infrared and Raman spectroscopy, electron spin resonance, x-ray diffractometry, optical and sensitometrical measurements were used. His recent scientific activities are concerned mainly with electrochemical investigation of materials containing transition metals ions and vacuum technologies.

He has more than 30 publications, including one paper in Nature, and h-index=5, according to ISI WEB of Science Database as of May, 2011.

1. A.I. Belkin and R.I. Kalendarev,
   Photoionization of quasicontinuos traps in tetracene crystals,
   Phys. Stat. Sol. (a) 14 (1972) 681-692.
   
   
2. A.N. Rodionov, R.I. Kalendarev, G.V. Tchikvaidze, and J.A. Eiduss,
   A new phase in solid state arsenic,
   Nature 281 (1979) 60-61.
   
   
3. A.N. Rodionov, R.I. Kalendarev, and A. V. Shendrik,
   Phys. Stat. Sol. (a) 74 (1982) K155-K158.
   
   
4. A.I. Sazonov, R.I. Kalendarev, and Y.A. Eiduss,
   Photographic and holographic properties of yellow arsenic thin-films,
   Zhurnal nauchnoi i prikladnoi fotografii 28 (1983) 334-338.
   
   
5. A.N. Rodionov, R.I. Kalendarev, and A. V. Shendrik,
   Photoinduced paramagnetic states of yellow arsenic,
   Phys. Stat. Sol. (a) 79 (1983) K151-K154.
   
   
6. R.I. Kalendarev, A.I. Sazonov, A.N. Rodionov, G.V. Chikvaidze, and J.A. Eiduss,
   Properties of vapour-deposited yellow arsenic films at various condensation conditions,
   Mat. Res. Bull. 19 (1984) 11-15.
   
   
7. R.I. Kalendarev, A.I. Sazonov, A.N. Rodionov, G.V. Chikvaidze, and J.A. Eiduss,
   Effect of the condensation temperature on the stability of yellow arsenic,
   Inorg. Mater. 20 (1984) 476-479.
   
   
8. J. Eiduss, G. Chikvaidze, R. Kalendarev, A. Rodionov, and A. Sazonov,
   Spectroscopic studies of molecular arsenic,
   J. Mol. Structure 348 (1995) 123-126.
   
   
9. A. Rodionov, R. Kalendarev, and J. Eiduss,
   Photostimulated structural changes in yellow arsenic,
   J. Phys.: Condens. Matter. 7 (1995) 5805-5814.
   
   
10. J. Eiduss, R. Kalendarev, A. Rodionov, A. Sazonov, and G. Chikvaidze,
    Some aspects of solid state physics of yellow arsenic,
    Phys. Stat. Sol. (b) 193 (1996) 3-23.
    
    
11. A. Rodionov, R. Kalendarev, J. Eiduss, and Yu. Zhukovskii,
    Polymerization of molecular (yellow) arsenic,
    J. Mol. Structure 380 (1996) 257-266.
    
    
12. E. Pentjush, A. Rodionov, R. Kalendarev, G. Bajars, and A. Lusis,
    Influence of treatment on stability of electrochromic WO₃ film in acidic electrolyte, Optical Organic and Semiconductor Inorganic Materials, (Editors: E. Silinsh, A. Medvid, A. Lusis, A. Ozols),
    Proc. SPIE 2968 (1997) 230-233.
    
    
13. A.N. Rodionov, Yu.F. Zhukovskii, R.I. Kalendarev, and J.A. Eiduss,
    Formation of As₈ dimers in molecular solid state arsenic,
    J. Mol. Structure 410/411 (1997) 361-364.
    
    
14. Yu.F. Zhukovskii and R.I. Kalendarev,
    Cluster stimulations of structural transformations in yellow arsenic,
    J. Mol. Structure (Theochem) 544 (2001) 111-121.
    
    
15. A. Kuzmin, J. Purans, R. Kalendarev, D. Pailharey, and Y. Mathey,
    XAS, XRD, AFM and Raman studies of nickel tungstate electrochromic thin films,
    Electrochim. Acta 46 (2001) 2233-2236.
    
    
16. A. Kuzmin, J. Purans, and R. Kalendarev,
    Local structure and vibrational dynamics in NiWO₄,
    Ferroelectrics 258 (2001) 21-30.
    
    
17. A. Kuzmin, R. Kalendarev, J. Purans, and D. Pailharey,
    Iridium L₃-edge and oxygen K-edge x-ray absorption spectroscopy of nanocrystalline iridium oxide thin films,
    Proc. SPIE 5123 (2003) 210-214.
    
    
18. D. Pailharey, D. Tonneau, A. Houel, A. Kuzmin, R. Kalendarev, and J. Purans,
    Scanning probe microscopy of nanocrystalline iridium oxide thin films,
    Proc. SPIE 5123 (2003) 259-265.
    
    
19. A. Kuzmin, R. Kalendarev and J. Purans,
    Local structure of Ta-Re mixed oxide thin films studied by x-ray absorption spectroscopy,
    Proc. SPIE 5122 (2003) 79-85.
    
    
20. E. Cazzanelli, M. Castriota, R. Kalendarev, A.Kuzmin, and J. Purans,
    Sputtering deposition and characterization of Ru-doped WO₃ thin films for electrochromic applications,
    Ionics 9 (2003) 95-102.
    
    
21. J. Gaidelene, R. Kalendarev, A. Kuzmin, and J. Purans,
    EXAFS study of mixed nickel molybdenum oxide thin films at the Ni and Mo K-edges,
    Nucl. Instrum. Methods Phys. Res. A 531 (2004) 321-326.
    
    
22. A. Kuzmin, R. Kalendarev, J. Purans, J.P. Itie, F. Baudelet, A. Congeduti, and P. Munsch,
    EXAFS study of pressure-induced phase transition in SrWO₄,
    Physica Scripta T115 (2005) 556-558.
    
    
23. A. Kuzmin, J. Purans, and R. Kalendarev,
    Ab initio calculations of the Ni K-edge XANES in Ni_cMg_1-cO solid solutions,
    Phys. stat. sol. (c) 2 (2005) 665-668.
    
    
24. J. Purans, A. Kuzmin, R. Kalendarev, E. Cazzanelli, and M. Castriota,
    Structural characterization of mixed Ta-Re oxide films,
    Solid State Ionics 177 (2006) 1887-1891.
    
    
25. A. Kuzmin, R. Kalendarev, A. Kursitis, and J. Purans,
    Confocal spectromicroscopy of micro and nano-structured materials,
    Latvian J. Phys. Tech. Sci. 2 (2006) 66-72.
    
    
26. S. Larcheri, C. Armellini, F. Rocca, A. Kuzmin, R. Kalendarev, G. Dalba, R. Graziola, J. Purans, D. Pailharey, and F. Jandard,
    X-ray studies on optical and structural properties of ZnO nanostructured thin films,
    Superlattices and Microstructures 39 (2006) 267-274.
    
    
27. M. Castriota, E. Cazzanelli, G. Das, R. Kalendarev, A. Kuzmin, S. Marino, G. Mariotto, J. Purans, and N. Scaramuzza,
    Proton Presence and Motion in Rhenium Oxide Films,
    Mol. Cryst. Liq. Cryst. 474 (2007) 1-15.
    
    
28. D. Pailharey, Y. Mathey, F. Jandard, S. Larcheri, F. Rocca, A. Kuzmin, R. Kalendarev, J. Purans, G. Dalba, R. Graziola, and O. Dhez,
    Nanoscale x-ray absorption spectroscopy using XEOL-SNOM detection mode,
    J. Phys.: Conf. Series 93 (2007) 012038 (5 pp).
    
    
29. A. Kuzmin, R. Kalendarev, A. Kursitis, and J. Purans, Confocal spectromicroscopy of amorphous and nanocrystalline tungsten oxide films,
    J. Non-Cryst. Solids 353 (2007) 1840-1843.
    
    
30. E. Cazzanelli, M. Castriota, S. Marino, N. Scaramuzza, J. Purans, A. Kuzmin, R. Kalendarev, G. Mariotto, and G. Das,
    Characterization of rhenium oxide films and their application to liquid crystal cells,
    J. Appl. Phys. 105 (2009) 114904:1-7.
    
    
31. S. Larcheri, F. Rocca, D. Pailharey, F. Jandard, R. Graziola, A. Kuzmin, R. Kalendarev, and J. Purans,
    A new tool for nanoscale X-ray absorption spectroscopy and element specific SNOM microscopy,
    Micron 40 (2009) 61-65.