메뉴 건너뛰기




Volumn 74, Issue 3, 2006, Pages

Role of structural relaxations and vibrational excitations in the high-frequency dynamics of liquids and glasses

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC WAVE VELOCITY; COMPUTER SIMULATION; COUPLED CIRCUITS; ELECTRIC EXCITATION; MATHEMATICAL MODELS; NATURAL FREQUENCIES; VIBRATION MEASUREMENT; X RAY ANALYSIS;

EID: 33749331302     PISSN: 15393755     EISSN: 15502376     Source Type: Journal    
DOI: 10.1103/PhysRevE.74.031205     Document Type: Article
Times cited : (22)

References (44)
  • 2
    • 0035887039 scopus 로고    scopus 로고
    • JCOMEL 0953-8984 10.1088/0953-8984/13/41/307
    • G. Ruocco and F. Sette, J. Phys.: Condens. Matter JCOMEL 0953-8984 10.1088/0953-8984/13/41/307 13, 9141 (2001).
    • (2001) J. Phys.: Condens. Matter , vol.13 , pp. 9141
    • Ruocco, G.1    Sette, F.2
  • 3
    • 27144554577 scopus 로고    scopus 로고
    • RMPHAT 0034-6861 10.1103/RevModPhys.77.881
    • T. Scopigno and G. Ruocco, Rev. Mod. Phys. RMPHAT 0034-6861 10.1103/RevModPhys.77.881 77, 881 (2005).
    • (2005) Rev. Mod. Phys. , vol.77 , pp. 881
    • Scopigno, T.1    Ruocco, G.2
  • 6
    • 0031184778 scopus 로고    scopus 로고
    • EULEEJ 0295-5075 10.1209/epl/i1997-00310-1
    • S. N. Taraskin and S. R. Elliott, Europhys. Lett. EULEEJ 0295-5075 10.1209/epl/i1997-00310-1 39, 37 (1997).
    • (1997) Europhys. Lett. , vol.39 , pp. 37
    • Taraskin, S.N.1    Elliott, S.R.2
  • 8
    • 0042964914 scopus 로고    scopus 로고
    • EPJBFY 1434-6028 10.1007/s100510170299
    • J. Horbach, W. Kob, and K. Binder, Eur. Phys. J. B EPJBFY 1434-6028 10.1007/s100510170299 19, 531 (2001).
    • (2001) Eur. Phys. J. B , vol.19 , pp. 531
    • Horbach, J.1    Kob, W.2    Binder, K.3
  • 10
    • 10344265947 scopus 로고    scopus 로고
    • JCOMEL 0953-8984 10.1088/0953-8984/16/47/006
    • O. Pilla, J. Phys.: Condens. Matter JCOMEL 0953-8984 10.1088/0953-8984/16/47/006 16, 8519 (2004).
    • (2004) J. Phys.: Condens. Matter , vol.16 , pp. 8519
    • Pilla, O.1
  • 18
    • 4043152215 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.79.1678
    • M. Sampoli, G. Ruocco, and F. Sette, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.79.1678 79, 1678 (1997).
    • (1997) Phys. Rev. Lett. , vol.79 , pp. 1678
    • Sampoli, M.1    Ruocco, G.2    Sette, F.3
  • 19
    • 4243436602 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.77.4210
    • S. Sugai and A. Onodera, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.77.4210 77, 4210 (1996).
    • (1996) Phys. Rev. Lett. , vol.77 , pp. 4210
    • Sugai, S.1    Onodera, A.2
  • 23
    • 0000978126 scopus 로고
    • edited by J.-P. Hansen. D. Levesque, and. J. Zinn-Justin. North-Holland, Amsterdam
    • W. Götze, in Liquids, Freezing and Glass Transition, edited by, J.-P. Hansen, D. Levesque, and, J. Zinn-Justin, (North-Holland, Amsterdam, 1991), p. 287.
    • (1991) Liquids, Freezing and Glass Transition , pp. 287
    • Götze, W.1
  • 24
    • 0000010068 scopus 로고    scopus 로고
    • PLEEE8. 1063-651X. 10.1103/PhysRevE.61.587
    • W. Götze and M. R. Mayr, Phys. Rev. E PLEEE8 1063-651X 10.1103/PhysRevE.61.587 61, 587 (2000).
    • (2000) Phys. Rev. E , vol.61 , pp. 587
    • Götze, W.1    Mayr, M.R.2
  • 25
    • 5544293404 scopus 로고
    • PLRAAN 1050-2947 10.1103/PhysRevA.33.3433
    • U. Bengtzelius, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.33.3433 33, 3433 (1986a).
    • (1986) Phys. Rev. A , vol.33 , pp. 3433
    • Bengtzelius, U.1
  • 26
    • 0001476745 scopus 로고
    • PLRAAN 1050-2947 10.1103/PhysRevA.34.5059
    • U. Bengtzelius, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.34.5059 34, 5059 (1986b).
    • (1986) Phys. Rev. A , vol.34 , pp. 5059
    • Bengtzelius, U.1
  • 27
    • 0014665094 scopus 로고
    • PHRVAO 0031-899X 10.1103/PhysRev.184.151
    • J.-P. Hansen and L. Verlet, Phys. Rev. PHRVAO 0031-899X 10.1103/PhysRev.184.151 184, 151 (1969).
    • (1969) Phys. Rev. , vol.184 , pp. 151
    • Hansen, J.-P.1    Verlet, L.2
  • 28
    • 0010504069 scopus 로고
    • JPSOAW. 0022-3719. 10.1088/0022-3719/17/33/005
    • U. Bengtzelius, W. Götze, and A. Sjölander, J. Phys. C JPSOAW 0022-3719 10.1088/0022-3719/17/33/005 17, 5915 (1984).
    • (1984) J. Phys. C , vol.17 , pp. 5915
    • Bengtzelius, U.1    Götze, W.2    Sjölander, A.3
  • 30
    • 0001630832 scopus 로고    scopus 로고
    • PLEEE8. 1063-651X. 10.1103/PhysRevE.58.3384
    • M. Fuchs, W. Götze, and M. R. Mayr, Phys. Rev. E PLEEE8 1063-651X 10.1103/PhysRevE.58.3384 58, 3384 (1998).
    • (1998) Phys. Rev. E , vol.58 , pp. 3384
    • Fuchs, M.1    Götze, W.2    Mayr, M.R.3
  • 31
    • 4143101316 scopus 로고
    • JCOMEL. 0953-8984. 10.1088/0953-8984/2/42/025
    • W. Götze, J. Phys.: Condens. Matter JCOMEL 0953-8984 10.1088/0953-8984/2/42/025 2, 8485 (1990).
    • (1990) J. Phys.: Condens. Matter , vol.2 , pp. 8485
    • Götze, W.1
  • 32
    • 0035394486 scopus 로고    scopus 로고
    • PLEEE8. 1063-651X. 10.1103/PhysRevE.64.011503
    • S.-H. Chong, W. Götze, and M. R. Mayr, Phys. Rev. E PLEEE8 1063-651X 10.1103/PhysRevE.64.011503 64, 011503 (2001).
    • (2001) Phys. Rev. E , vol.64 , pp. 011503
    • Chong, S.-H.1    Götze, W.2    Mayr, M.R.3
  • 33
    • 33749337023 scopus 로고    scopus 로고
    • note
    • The appearance of isothermal instead of adiabatic sound velocity is because energy fluctuations are not taken into account in the present study (see Ref.).
  • 34
    • 33749353791 scopus 로고    scopus 로고
    • note
    • For glass states, one obtains a slightly different expression than Eq. 21 when the generalized hydrodynamic approximation is applied to Eq. 13 instead of Eq. 11. As far as one is interested in the small- q regime where Ωq can be approximated by its leading-order contribution, Ωq q v0, it does not matter whether the approximation is applied to Eq. 11 or 13, and this is the case in Sec. 3 where the q range of primary interest is q 2. In Sec. 4, on the other hand, one needs to apply the approximation to Eq. 13 [see Eq. 33], since there we are also interested in larger q regime. The interested reader is referred to Ref. for details.
  • 35
    • 0001572876 scopus 로고
    • JMANAK. 0022-247X. 10.1006/jmaa.1995.1352
    • W. Götze and L. Sjögren, J. Math. Anal. Appl. JMANAK 0022-247X 10.1006/jmaa.1995.1352 195, 230 (1995).
    • (1995) J. Math. Anal. Appl. , vol.195 , pp. 230
    • Götze, W.1    Sjögren, L.2
  • 37
    • 33749317895 scopus 로고    scopus 로고
    • note
    • The formulas (30) can be applied only when w1 ≤1 as discussed in Ref.. We found, however, that w1 exceeds unity for ρ=0.95 and T=0.5. Therefore, the SGA kernel m SGA (ω) for this state has been obtained after solving the MCT equations but dropping the two-mode contribution F (2) in Eq. 8. As shown in Ref., the difference between the SGA kernel so obtained and the one based on Eqs. (30) is small. The threshold frequencies Ω± for ρ=0.95 and T=0.5 have been determined as the frequencies where the intensity of m SGA (ω) becomes 1% of its peak height.
  • 42
    • 0004986545 scopus 로고
    • RPPHAG. 0034-4885. 10.1088/0034-4885/55/3/001
    • W. Götze and L. Sjögren, Rep. Prog. Phys. RPPHAG 0034-4885 10.1088/0034-4885/55/3/001 55, 241 (1992).
    • (1992) Rep. Prog. Phys. , vol.55 , pp. 241
    • Götze, W.1    Sjögren, L.2
  • 43
    • 44949288272 scopus 로고
    • CMPHC2. 0301-0104. 10.1016/0301-0104(90)80138-N
    • M. Fuchs, W. Götze, and A. Latz, Chem. Phys. CMPHC2 0301-0104 10.1016/0301-0104(90)80138-N 149, 185 (1990).
    • (1990) Chem. Phys. , vol.149 , pp. 185
    • Fuchs, M.1    Götze, W.2    Latz, A.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.