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861. http://www.issp.ac.ru/lhpp/PapersMeletov/paper67.pdf
... Raman Spectra of MgB2 at High Pressure and Topological Electronic Transition1 K. P. Meletov1*, M. P. Kulakov1, N. N. Kolesnikov1, J. Arvanitidis2, and G. A. Kourouklis2 ... Physics Division, School of Technology, Aristotle University of Thessaloniki, GR-540 06 Thessaloniki, Greece Received March 18, 2002 Raman spectra of MgB2 ceramic samples were measured as a function of pressure up to 32 GPa at room temperature ... Pressure dependence of the frequency of the E2g phonon in MgB2. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper67.pdf -- 55.8 Кб -- 18.02.2014
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862. http://www.issp.ac.ru/lhpp/PapersMeletov/paper70.pdf
... Paraskevi, Athens, Greece c Physics Division, School of Technology, Aristotle University of Thessaloniki, GR-540 06 Thessaloniki, Greece d Department of Chemistry, Nagoya University, Nagoya 464-8602, Japan Abstract The structural properties of solid C84 (mixture of two isomers, D2(IV) and D2d(II) in a 2:1 abundance ratio) were studied by synchrotron X-ray powder diffraction at ambient temperature and elevated pressures. ... The Raman spectrum of C84 was also measured at pressures up to 10 GPa. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper70.pdf -- 386.3 Кб -- 18.02.2014
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863. http://www.issp.ac.ru/lhpp/PapersMeletov/paper72.pdf
New Diamondand Frontier Carbon Technology, Vol. 12,мО. 5 (2002) И 3' 20 (R) ~ .20(т) ~ tn ~ -< C = ~ ~ C tn ..c "" ж C C60 ~ ; = --~ --< ~ м 500 1000 ~ 1500 2000 Raman Shift (cm"1) Fig. ... 1O) Compmng the Ran1anspectra of the high-pressure phases of the 2D compounds,(10-21) we observe that the 2D(R) spectrum does not contain any peak in the high-energy region, like - 6 New Diamondand Frontier CАrbon Technology, МОИ. 12,мО. 5 (2002) the 1920 cm-1 peak in the 2D(T) phase. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper72.pdf -- 1260.7 Кб -- 18.02.2014
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864. http://www.issp.ac.ru/lhpp/PapersMeletov/paper7.pdf
... Printed in U.S.A. Exciton-Phonon Luminescence of Perfect and Doped Naphthalene Crystals K. P. MELETOV and E. F. SHEKA Institute of Solid State Physics. ... LOCAL EXCITON ONE-PHONON LUMINESCENCE Theory Consider one-phonon luminescence from the local exciton states. ... Figure 1 presents the fluorescence spectrum structure in the electronic and one of the vibronic transitions of the naphthalene crystal at 2 K. A narrow intense band in either spectrum will be referred to as a phononless band (PLB). ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper7.pdf -- 957.8 Кб -- 18.02.2014
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865. http://www.issp.ac.ru/lhpp/PapersMeletov/paper69.pdf
... Paraskevi, Athens, Greece; eDepartment of Chemistry, Nagoya University, Nagoya 464-8602, Japan (Received 24 July 2001; In final form 17 September 2001) The pressure behavior of the intramolecular phonon modes of the fullerene C84 and its structural stability have been studied for the first time by means of Raman spectroscopy and synchrotron X-ray diffraction at high pressure up to $10 GPa. ... The pressure dependence of the low energy Raman modes is shown in the inset of Figure 1. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper69.pdf -- 103.8 Кб -- 18.02.2014
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866. http://www.issp.ac.ru/lhpp/PapersMeletov/paper65.pdf
... 44, No. 3, 2002, pp. ... WORKSHOP FULLERENES AND ATOMIC CLUSTERS (St. Petersburg, Russia, July 2ґ6, 2001) Phase Transitions in Hydrofullerene C60H36 Studied by Luminescence and Raman Spectroscopy at Pressures up to 12 GPa1 K. P. Meletov* , **, S. Assimopoulos*, G. A. Kourouklis*, and I. O. Bashkin** * Physics ... Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia Abstract--The effect of hydrostatic pressure on the photoluminescence and ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper65.pdf -- 197.3 Кб -- 18.02.2014
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867. http://www.issp.ac.ru/lhpp/PapersMeletov/paper59.pdf
PHYSICAL REVIEW B, VOLUME 63, 054106 Pressure -induced phase in tetragonal two-dimensional polymeric C60 K. P. Meletov Physics Division, School of Technology, Aristotle University of Thessaloniki, GR-540 06 Thessaloniki, Greece and Institute of Solid State Physics RAS, Chernogolovka, Moscow region , 142432, Russia J. Arvanitidis Physics Department, Aristotle University of Thessaloniki, GR-540 06 Thessaloniki, Greece E. Tsilika ... We think that the Raman mode at 1150 cm 1 conforms to this case. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper59.pdf -- 84.4 Кб -- 18.02.2014
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868. http://www.issp.ac.ru/lhpp/PapersMeletov/paper50.pdf
... The Role of the Intradimer C ? C Bridge on the Stability of ( C59N ) phys. stat. sol. (b) 211, 435 (1999) Subject classification: 78.30.Na; 61.48.+c; 62.50.+p; S5 2 435 The Role of the Intradimer C ? C Bridge on the Stability of ( C59N )2: A High Pressure Raman Study J. Arvanitidis1) (a), K. Papagelis (a), K. P. Meletov (b), G. A. Kourouklis (c), K. Prassides (d), K. Kordatos (d), F. Wudl ... At normal pressure, the Raman spectrum of (C59N)2 in this low energy region is similar to that of...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper50.pdf -- 196.8 Кб -- 18.02.2014
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869. http://www.issp.ac.ru/lhpp/PapersMeletov/paper57.pdf
... High- Pressure Phase in Tetragonal 2D Polymeric C60 phys. stat. sol. (b) 223, 489 (2001) Subject classification: 61.48.Чc; 62.50.Чp; 78.30.Na; S5 489 High- Pressure Phase in Tetragonal Two-Dimensional Polymeric C 60 K. P. Meletov1) (a, b), J. Arvanitidis (c), S. Ves (c), and G. A. Kourouklis (a) (a) Physics Division Gradual transformation of the material to a new phase was observed in the pressure region 18.0 ґ 22.0 GPa. ... The Raman spectrum of the new phase differs sig- Fig. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper57.pdf -- 111.8 Кб -- 18.02.2014
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870. http://www.issp.ac.ru/lhpp/PapersMeletov/paper55.pdf
High Pressure Research, 20M). ... Downloaded By: [HEAL-Link Consortium ] At: 15:53 14 January 2008 HIGH PRESSURE STUDY OF THE 2D POLYMERIC PHASE OF C60 BY MEANS OF RAMAN SPECTROSCOPY J. ARVANITIDIS , K. P. MELETOV b,c, G. A. KOUROUKLIS ', K. PAPAGELIS a, A. SOLDATOV K. PRASSIDESd and S. VESax ... In addition, high-pressure treatment of C60 at high temperatures leads to polymerization of the pristine material [5]. ... A number of new modes appear in the spectrum under high pressure. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper55.pdf -- 316.3 Кб -- 18.02.2014
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871. http://www.issp.ac.ru/lhpp/PapersMeletov/paper62.pdf
JOURNAL OF CHEMICAL PHYSICS VOLUME 114, NUMBER 20 22 MAY 2001 Raman modes of the two-dimensional tetragonal polymeric phase of C60 under high pressure J. Arvanitidis Physics Department, Aristotle University of Thessaloniki, GR-540 06 Thessaloniki, Greece K. P. Meletov Physics Division ... University of Sussex, Brighton BN1 9QJ, United Kingdom Received 31 October 2000; accepted 2 March 2001 The effect of high hydrostatic pressure , up to 12 ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper62.pdf -- 548.5 Кб -- 18.02.2014
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872. http://www.issp.ac.ru/lhpp/PapersMeletov/paper48.pdf
PHYSICAL REVIEW B VOLUME 59, NUMBER 4 15 JANUARY 1999-II 2 Effect of high hydrostatic pressure on the intramolecular modes of ,, C59N... ... At ambient pressure, the Raman spectrum of (C59N) 2 displays eight of the ten molecular modes of C60. ... CONCLUSION In conclusion, by comparing the pressure dependence of the modes observed in ( C59N) 2 to that of the corresponding modes in C60, we find that both materials show the same signs in their frequency shifts ( / P ) . ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper48.pdf -- 98.0 Кб -- 18.02.2014
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873. http://www.issp.ac.ru/lhpp/PapersMeletov/paper58.pdf
(2001) 379?388 www.elsevier.nl/locate/chemphys Isotopic and isomeric eects in high-pressure hydrogenated fullerenes studied by Raman spectroscopy K.P. Meletov b a,b , S. Assimopoulos a, I. Tsilika a, I.O. Bashkin b, V.I. Kulakov b, S.S. Khasanov b, G.A. Kourouklis ... Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow region, Russian Federation Abstract Raman spectra of hydro- and deuterofullerenes, C60 H36 and ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper58.pdf -- 237.8 Кб -- 18.02.2014
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874. http://www.issp.ac.ru/lhpp/PapersMeletov/paper53.pdf
... Raman Study of Polymeric Phases of C phys. stat. sol. (b) 215, 443 (1999) 60 443 Subject classification: 61.48.+c; 61.41.+e; 62.50.+p; 78.30.Na; 78.66.Tr; S5 Comparative Raman Study of the 1D and 2D Polymeric Phases of C 60 under Pressure J. Arvanitidis (a), K.P. Meletov (b, c), K. Papagelis (a), A. Soldatov (d, e), K. Prassides (d), G.A. Kourouklis (c), and S. Ves ... Ta b l e 1 Frequencies of the intramolecular Raman modes of the 1D and 2D C60 polymers. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper53.pdf -- 159.4 Кб -- 18.02.2014
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875. http://www.issp.ac.ru/lhpp/PapersMeletov/paper60.pdf
... Open (closed) symbols correspond to increasing (decreasing) pressure. ... The corresponding values for C60 are also included for comparison C60H 36 C60a) 1.16 ґ 5.8 GPa 6.6 ґ 11.8 GPa 0.4 ґ 2.4 GPa @ wi =@ P ґ1 (cm ґ / GPa ) 6.4 3.1 2.2 2.6 2.9 2.6 1.3 1.8 1.9 1.4 1.6 0.6 4.6 1.9 0.5 2.7 2.7 1.7 2.0 1.9 2.0 2.0 1.5 1.7 1.3 1.6 2.5 6.7 4.8 7.2 3.6 ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф ф 0.1 0.4 0.1 0.1 0.1 0.2 0.1 0.2 0.1 0.1 0.1 0.2 0.3 0.2 ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper60.pdf -- 183.9 Кб -- 18.02.2014
[ Текст ] Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper61.pdf -- 183.9 Кб -- 18.02.2014
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[ Текст ] Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper61.pdf -- 183.9 Кб -- 18.02.2014
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876. http://www.issp.ac.ru/lhpp/PapersMeletov/paper54.pdf
... 1999 Photoinduced transformation of luminescence centers in C60 crystals at high pressure V. D. Negri *) and K. P. Meletov Institute of Solid-State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia Submitted 22 November 1999 Є Pis'ma Zh. ... 12, 784 ґ 788 25 December 1999 The influence of laser irradiation on the photoluminescence spectra of perfect C60 crystals in the orientationally disordered phase is investigated. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper54.pdf -- 47.5 Кб -- 18.02.2014
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877. http://www.issp.ac.ru/lhpp/PapersMeletov/paper52E.pdf
... The optical transmission spectra of molecular films ranging in thickness from 2 to 13 smectic layers 6.7ґ43 nm in the region of the electronic absorption bands in the smectic A phase of cyanobiphenyl CB9 are measured. ... Smectic-A film. ... The first measurements of the transmission spectra of thin, freestanding, molecular films in the region of electronic absorption bands were performed.1 The degree of orientational order in ultrathin films ( N 2,3) is greater than in thick films. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper52E.pdf -- 110.0 Кб -- 18.02.2014
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878. http://www.issp.ac.ru/lhpp/PapersMeletov/paper40E.pdf
Anomalous orientation of ferroelectric liquid crystal films in an electric field P. O. Andreeva, V. K. Dolganov,a) and K. P. Meletov Institute of Solid-State Physics, 142432 Chernogolovka, Moscow District, Russia Submitted 5 August 1997 Є Pis'ma Zh. ... If an electric field orients a ferroelectric film at low temperatures in the same manner as in a bulk sample, then at high temperatures the orientation changes by 90° : The tilt planes of the molecules become oriented in the direction of the field. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper40E.pdf -- 85.9 Кб -- 18.02.2014
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879. http://www.issp.ac.ru/lhpp/PapersMeletov/paper41E.pdf
Crystal-field induced mixing of electron states in C60 crystals at high pressure K. P. Meletov*) and V. K. Dolganov Institute of Solid State Physics, 142432 Chernogolovka, Moscow Region, Russia Submitted 9 July 1997 Є Zh. ... The spectrum shifts toward the red with pressure, and the electron absorption intensity is redistributed among its bands. ... In view of this, we have investigated in detail the band intensities in electron absorption spectra of C60 crystals under hydrostatic pressure. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper41E.pdf -- 179.0 Кб -- 18.02.2014
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880. http://www.issp.ac.ru/lhpp/PapersMeletov/paper39E.pdf
Energy spectrum and phase transitions in C70 fullerite crystals at high pressure K. P. Meletov, A. A. Maksimov, and I. I. Tartakovski Institute of Solid-State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia Submitted 10 July 1996 Є Zh. ... 111, 262 ґ 273 January 1997 Measurements have been made of the Raman, optical absorption, and luminescence spectra of single crystals and pellets of the fullerite C70 at T 300 K and at pressures up to 12 ? GPa. ... man spectra. ...
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Ссылки http://www.issp.ac.ru/lhpp/PapersMeletov/paper39E.pdf -- 138.6 Кб -- 18.02.2014
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