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 ƒ  ½ ¨ 7 Hë  H  Sae Mulli (The Korean Physical Society), Volume 48, Number 1, 2004¸   1 Z 4, pp. 37∼40

Œ

Ÿ

¤õ t Ú< g” X ¢ { ¢ ¨ | Ê Ý ±  q “ Ö ¨T  | º Ç X Ø3 û À W ¥  Ò ãT   < g” X ¢ { ¢ ¨ | 8 ý å ¾ Ë4  Ž ì ŏ Œ

™

»' Ö <) o  · ™ ». > * >

Õ

ü æz  ´@ /† < Ɠ § Ó ü t o † < Æõ , ì  r  [ O >  ƒ  ½ ¨G ' p' , " fÖ  ¦ 156-743 (2003¸   10 Z 4 6{ 9  ~ à Î6 £ §)

Restricted Curvature (RC) — ¸4 S qõ  Conserved Noise Restricted Solid On Solid (CNRSOS) — ¸4 S q õ

_  › ' a > \  ¦ ƒ  ½ ¨ % i  . 1 " é ¶ \ " f RC — ¸4 S q_  ³ ð€    } 9 l  W  H  } 9 l  t à º α

rc

∼ = 1.5,$ í  © œ t à º β

rc

∼ = 0.375s “ ¦, 1 l x% i † < Æ& h “   t à º z

rc

≈4e ” `  ¦ ˜ Ð# Œï  r  . Ä ºo   H ç ß –é ß –ô  Ç ½ ©g Ë :`  ¦  Ø Ô  H CNRSOS — ¸ 4

S q`  ¦ • ¸{ 9  % i  . s  — ¸4 S q\ " f  H ³ ð€    } 9 l  W  H  } 9 l  t à º α

cn

∼ = 0.49, $ í  © œt à º β

cn

∼ = 0.12s 

“

¦, 1 l x% i † < Æ& h “   t à º z

cn

≈4e ” `  ¦ % 3 % 3  . RC — ¸4 S q\ " f_  Z  } s  \  ¦ CNRSOS — ¸4 S q\ " f_  Z  } s – Ð K

$ 3  €   ¿ º — ¸4 S qs  ° ú   ”   .   " f RC — ¸4 S qõ  CNRSOS — ¸4 S q_  › ' a >   H z

rc

= z

cn

, α

rc

-1=α

cn

, β

rc

-

z1

rc

cn

e ” `  ¦ · ú ˜ à º e ”  .

PACS numbers: 05.40.+j, 05.70.Ln, 68.35.Fx

Keywords: / B GÒ  ¦ ] jô  Ç — ¸4 S q, ³ ð€    } 9 l , Z  } s   ] jô  Ç — ¸4 S q,  } 9 l  t à º, $ í  © œt à º, á ÔÏ þ ˜» 1 Ï ³ ð€  

I. " e  ] Ø

þ

j  H \  q ç  H{ 9  B | 9 \ " f { 9  _  @& h , f  ¨‚ à ÌÜ ¼– Ð Ò q tl 



 H ³ ð€  s   ] X 8 ú ¤€  `  ¦ $ í  © œr v   H ƒ  ½ ¨  Ö ¸µ 1 Ïy  ”  ' Ÿ 

÷

&“ ¦ e ”  . ³ ð€    } 9 l   H F g# 3 0 A >  t è ß – z  # Œ¸   1 l xî ß –

ƒ 

½ ¨÷ &# Q4 R M ® o  . s  כ “ É r ç ß –é ß –ô  Ç » ¡ ¤' ‘  ‰ & ³ © œ`  ¦ ˜ Г   . » ¡ ¤ '

‘

 › ' a > \  ¦ s 6   x K  » ¡ ¤' ‘  ' Ÿ 1 l x`  ¦   ? /  H t à º[ þ t`  ¦   & ñ

½ +

É Ã º e ” “ ¦ [1,2], Õ ª t à º[ þ t`  ¦ : Ÿ x K " f ˜ м # $ í  ÒÀ Ó[ þ t`  ¦

&

ñ _ ½ + É Ã º e ”  .  â > €  _   } 9 l  W   H Z  } s _  ³ ðï  r¼ #  

–

Ð & ñ _  ) a  .

W 2 (L, t) ≡ [ ¯ h 2 (x, t) − ¯h(x, t) 2 ] . (1)

#

Œl " f L“ É r system_  ß ¼l s “ ¦, ¯h  H / B Nç ß –& h  ¨ î ç  H h(t)= ¯ L 1

L

X

x=1

h(x, t) s “ ¦, <>  H " f– Ð   É r ³ ð‘ : r \  @ /ô  Ç ¨ î ç

 H s  . r ç ß – tü <    ß ¼l  L\    É r ³ ð€  _   } 9 l  W   H



6 £ § õ  ° ú  “ É r » ¡ ¤' ‘  ‰ & ³ © œ`  ¦    · p  [3,4].

W 2 (L, t) ∼ L g(t/L z ),

∼ t (t  L z ), (2)

∼ L (t  L z ).

#

Œl " f 1 l x§ 4 † < Æ t à º z  H  6 £ § õ  ° ú  “ É r ƒ  › ' a$ í `  ¦ t “ ¦ e ”

 .

z = α

β . (3)

E-mail: [email protected]

፠ H  } 9 l  t à ºs “ ¦, ⍠ H $ í  © œ t à ºs  . ¿ º > h_  t à º

\

 ¦ · ú ˜€     É r  _  t à º ° ú כ`  ¦ 8 £ ¤& ñ ½ + É Ã º e ”  .

II. Ä ] Ø Â ] Ø

‘

: r ƒ  ½ ¨\ " f  H Restricted Curvature (RC) — ¸4 S qõ  Con- served Noise Restricted Solid on Solid (CNRSOS) — ¸4 S q _

 ƒ    “ ¦o \  ¦ ¹ 1 Ô  t à ºü < » ¡ ¤' ‘ › ' a > d ” [ þ t`  ¦ 8 £ ¤& ñ ì  r$ 3 

 9“ ¦ ô  Ç . Ä º‚   RC — ¸4 S q [5]\ " f_  $ í  © œ ½ ©g Ë :“ É r % ƒ6 £ §

\

 ¨ î ¨ î ô  Ç ³ ð€  \ " f r  Œ • # Œ e ” _ _     & h  x\  ¦ ‚  × þ ˜ 

“

¦, ‚  × þ ˜ ) a x \ " f > á ¤° ú  “ É r S X ‰Ò  ¦ 1/2 – Ð ô  Ç { 9  \  ¦  8  



 N Sï  r  . ë ß –€  • ‚  × þ ˜ ) a    _  Z  } s     o RC / B GÒ  ¦ ] j ô 

Ç (|∇ 2 h | = |h(x + 1) + h(x − 1) − 2h(x)| ≤ N)`  ¦ L :ä ¼o 

€ 

 Z  } s     o\  ¦ 2 [™ è “ ¦ " é ¶ A   © œI – Ð ÷ &[  t 2 ; . N“ É r € ª œ _

 & ñ à º– Ð" f  } 9 l \  ¦ l Õ ü t   H t à º° ú כ\     o\  ¦ Å Òt 

· ú

§  H ° ú כÜ ¼– Ð · ú ˜ 94 R e ” “ ¦, Ä ºo   H N = 2\  ¦ ŠҖ Ð  6   x 

%

i  . s  — ¸4 S q\ " f  H / B GÒ  ¦ë ß – ] jô  Ç l  M :ë  H \   © œ   î

 r \ P _  Z  } s   |h(x+1)−h(x)|\  @ /K " f  H  Á º   ] j€  • s

 \ O  . RC — ¸4 S q\ " f 0 p xô  Ç continuum Hamiltonian“ É r



6 £ § õ  ° ú   

H ∼ Z

d d −1 x |∇ 2 h | 2 , (4)

#

Œl " f d  H „  ^ ‰ " é ¶( l ó ø Í " é ¶+1)`  ¦ ´ ú ˜ô  Ç . s  x 9 ž Ð m

î ß –\  K { © œ   H Langevin dynamical equation [6] ∂h ∂t

-37-

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Fig. 1. The log(W (t)) − log(t) graph of the CNRSOS model for L = 10, 20, 40, 80, 10000. β = 0.12 ± 0.01(d = 1 + 1) is obtained from the data.

δH δh + η“ É r

∂h(x, t)

∂t = −ν 4 ∇ 4 h(x, t) + η(x, t). (5)

–

Ð Å Ò# Q”   4  ƒ  5 Å q ‚  + þ A ~ ½ Ó& ñ d ” s   ) a  . Õ ªA " f RC — ¸ 4

S q“ É r 0 A_  ~ ½ Ó& ñ d ” `  ¦  \  ¦  כ Ü ¼– Ð \ V © œ ) a  . ∇ 4 † ½ ӓ É r / B G

€ 

`  ¦ ¨ î €   o r v   H  Œ •6   x`  ¦  9 ¸ ú š6 £ § † ½ ӓ É r  6 £ § õ  ° ú  s  Å

Ò# Q”   .

< η(x, t)η(x 0 , t 0 ) >= 2Dδ d −1 (x − x 0 )δ(t − t 0 ). (6)

~

½ Ó& ñ d ”  (5)  H ‚  + þ A ~ ½ Ó& ñ d ” Ü ¼– Ð" f & ñ S X ‰ y  Û  ¦ à º e ” Ü ¼ 9   6

£

§ t à º ° ú כ[ þ t`  ¦ % 3   H   [7,8].

α = 5 − d

2 , β = 5 − d

8 , z = 4. (7) RC — ¸4 S q\ " f_  / B GÒ  ¦ ] jô  Ǔ É r

|∇ 2 h | ≤ N (8) s

 . N“ É r € ª œ_  & ñ à ºs  . d = 2 " é ¶ \ " f Å Òl & h  › ¸| 

`

 ¦ Å Ò# Q" f N = 2“    â Ä º\  ¦ „  í ß – r Ð 3 x €    6 £ § õ  ° ú  “ É r e ”

> t à º\  ¦ ˜ Ð# Œï  r   [5,7,9].

α ≈ 3 2 , β ≈ 3

8 , z ≈ 4. (9)

#

Œl " f Ä ºo   H D h– Ðî  r CNRSOS — ¸4 S q`  ¦ • ¸{ 9  % i  . s 

—

¸4 S q\ " f xt & h _  Z  } s   H S(x, t) – Ð ³ ðr  % i  . CNR- SOS — ¸4 S q_  ½ ©g Ë :“ É r " f– Ð “  ] X ô  Ç ¿ º> h_     & h  (x, x + 1)`  ¦ ‚  × þ ˜ “ ¦ 1/2 S X ‰Ò  ¦ – Ð xt & h _  Z  } s \  ¦  `  ¦ o

“ ¦ x + 1 t & h _  Z  } s \  ¦   ? /o    1/2 S X ‰Ò  ¦ – Ð xt 

&

h _  Z  } s \  ¦   ? /o “ ¦ x + 1 t & h _  Z  } s \  ¦   `  ¦



2 ; . ë ß –€  •    [ þ t_  Z  } s     o Restricted Solid On

Fig. 2. The saturated value W 2 (L) of the CNRSOS model for L = 10, 20, 40, 80. α = 0.49 ± 0.01 is obtained from the data.

Solid(RSOS) Z  } s  ] jô  Ǜ ¸|  |∇S| ≤ N ( |S(x + 1) − S(x) | ≤ NÕ ªo “ ¦ |S(x) − S(x − 1)| ≤ N)`  ¦ L :ä ¼o 

€ 

 Z  } s     o\  ¦ 2 [™ èô  Ç . s  õ & ñ \ " f — ¸Ž  H Z  } s _  ½ + Ë P

x S(x)  H ˜ Д > r ) a  . Õ ª QÙ ¼– Ð ¸ ú š6 £ § s  ˜ Д > r ÷ &  H > s  .

CNRSOS — ¸4 S q\ " f_  { 9  > hà º  H RC — ¸4 S qõ  ² ú ˜o      t

 · ú §  H  . „  í ß – r Ð 3 x`  ¦ : Ÿ x K " f CNRSOS — ¸4 S q_  ³ ð€     } 9

l _  e ” > t à º[ þ t`  ¦ % 3 % 3  . Fig. 1\ " f β\  ¦   & ñ l  0 AK " f Ä ºo   H > _  ß ¼l  L = 10000“    â Ä º W (t)\  ¦ 8

£

¤& ñ % i  . œ íl  r ç ß – t  L z { 9  M : W (t)∼ t β “   › ' a > \  ¦ :

Ÿ

x # Œ β° ú כ`  ¦ % 3 % 3  

β = 0.12 ± 0.01 (d = 1 + 1). (10) s

 — ¸4 S q“ É r z = 4   H % ƒ_  ° ú כ`  ¦ t Ù ¼– Ð Ÿ í o % ò % i \  • ¸

²

ú ˜   H r ç ß –s  B Ä º š ¸A     2 ; . r Û ¼% 7 › ß ¼l  L = 10, 20, 40, 80 Ü ¼– Ð ] jô  Ç # Œ „  í ß – r Ð 3 x`  ¦ % i  . Fig. 2\  ¦

˜

Ѐ    } 9 l  t à º α\  ¦ ˜ Ðl  0 AK " f t  L z “   % ò % i \ " f W ∼ L α › ' a > \  ¦  6   x % i  .

α = 0.49 ± 0.01, z = α

β = 4.0 ± 0.1. (11) 0

A_  ° ú כ[ þ t“ É r α =1/2, β =1/8, z = 4 ü < B Ä º q 5 p w  . » ¡ ¤ '

‘

 › ' a > d ”  (2)\  ¦ s 6   x # Œ  « Ñ   u l \  ¦ # Œ Fig. 3\ 



 ? /% 3  . " f– Ð   É r ß ¼l _   « Ñ[ þ t s  ô  Ç / B G‚  \  ¸ ú ˜    5

gf ” `  ¦ · ú ˜ à º e ”  .

RC — ¸4 S q\ " f x  P :\  ô  Ç { 9  \  ¦  8   H  â Ä º (h x → h x + 1) \  Šҁ  _  / B GÒ  ¦“ É r  6 £ § õ  ° ú  s    ô  Ç  [10].

C x −1 → C x −1 + 1,

C x → C x − 2, (12)

C x+1 → C x+1 + 1.

(3)

 ƒ  ½ ¨ 7 Hë  H  / B GÒ  ¦ ] jô  Ç — ¸4 S qõ  ¸ ú š6 £ § s  ˜ Д > r ÷ &  H Z  } s   ] jô  Ç — ¸4 S q_  › ' a >  ƒ  ½ ¨ – ^ ” ë  H$ 3  · ^ ” ”     -39-

Fig. 3. The scaling plot of the surface width with α = 0.5 and z = 4.

#

Œl " f / B GÒ  ¦“ É r C x = h x −1 + h x+1 − 2h x – Ð & ñ _ ÷ &% 3  .

RC — ¸4 S q\ " f_  Z  } s  \  ¦ B x ≡ h x − h x −1  “ ¦ & ñ _  

€ 

, B x → B x + 1, B x −1 → B x −1 − 1– Ð   ¨ 8 Šô  Ç . (# Œl " f P B x   H ˜ Д > r ) a  .) RC — ¸4 S q\ " f { 9  \  ¦ ô  Ç > h N S? /  H

 â

Ä º(h x → h x − 1)  H B x → B x − 1, B x −1 → B x −1 + 1 \  K

{ © œô  Ç . B x \  ¦ CNRSOS — ¸4 S q\ " f_  Z  } s  S x – Ð Z  ~ Ü ¼

€ 

 RC — ¸4 S q_  ½ ©g Ë :s  CNRSOS — ¸4 S q_  1 l x% i † < Æ ½ ©g Ë :õ  1

l x{ 9 † < Ê`  ¦ ˜ Ð{ 9  à º e ”  . / B GÒ  ¦ s  |C x | ≤ Ns €  , C x = h x+1 + h x −1 − 2h x = B x − B x −1 , 7 £ ¤ |B x − B x −1 | ≤ Ns 



. B x   H restricted solid on solid › ¸| `  ¦  Ø Ô>   ) a  . RC

—

¸4 S q\ " f P B x  ˜ Д > r ÷ &“ ¦, CNRSOS — ¸4 S q\ " f P S x 

˜

Д > r ) a  . RC — ¸4 S q\ " f_  Z  } s   B x \  ¦ CNRSOS — ¸4 S q\ 

"

f_  Z  } s  S x – Ð ^  ¦ à º e ”  . # Œl " f RC — ¸4 S q\ " f_  Z  } s 



 H h x – Ð ³ ðr  “ ¦ CNRSOS — ¸4 S q\ " f_  Z  } s   H S x – Ð ³ ð r

ô  Ç . CNRSOS — ¸4 S q\ " f  H P S x = 0 s  . Õ ªA " f ˜ Ð

”

> r ¸ ú š6 £ § \  K { © œ ) a  . CNRSOS — ¸4 S q“ É r |∇S x | ≤ N “   Z  } s

  N s ? /– Ð ] jô  ǝ ) a — ¸4 S qs  . # Œl " f ∇S x = S x − S x −1 – Ð & ñ _  ) a  . 7 £ ¤,

|∇ 2 h | ≤ 2,

|∇h x+1 − ∇h x | ≤ 2, (13)

|S x+1 − S x | ≤ 2 s

 . RC — ¸4 S q\ " f_  Z  } s  h(x, t)  H 4  ƒ  5 Å q ‚  + þ A ~ ½ Ó& ñ d ”

(d ” (5))`  ¦  Ø Ô  H  כ Ü ¼– Ð # Œ ”    [11,12].

d ”

(5)\  ∇`  ¦ € ª œ  \  2 [ €  ,

∂( ∇h)

∂t = −ν 4 ∇ 4 ( ∇h) + ∇η(x, t), (14)

 ÷ &“ ¦, ∇h\  ¦ S – Ð u  ¨ 8 Š €  ,

∂S

∂t = −ν 4 ∇ 4 S + ∇η, (15) s

 . ∇η  H ˜ Д > r ¸ ú š6 £ § s  . s  ˜ Д > r ¸ ú š6 £ §† ½ ӓ É r  6 £ § d ” `  ¦



Ø Ô>   ) a  

< ∇η(x, t)∇η(x 0 , t 0 ) >= −2D∇ 2 δ d −1 (x − x 0 )δ(t − t 0 ).

(16) d ”

 (15)`  ¦ Û  ¦€  , α = 3 − d

2 , β = 3 − d

8 , z = 4 (17)

\

 ¦ % 3   H  . d = 2\ " f α = 1/2, β = 0.125, z = 4s  . Ä º o

_  CNRSOS — ¸4 S q\ " f % 3 “ É r ° ú כ[ þ t (d ” (10)õ  d ” (11))“ É r 0

A_  ° ú כõ  B Ä º ¸ ú ˜ { 9 u  “ ¦ e ”  . 7 £ ¤ CNRSOS — ¸4 S q“ É r d ”

(15)`  ¦  Ø Ô  H — ¸4 S qs   ) a  .

Õ

ª QÙ ¼– Ð RC — ¸4 S q\ " f_  Z  } s   CNRSOS — ¸4 S q\ " f



 H Z  } s – Ð K $ 3  | ¨ c à º e ”  . # Œl " f " é ¶ ì  r$ 3 `  ¦ : Ÿ x K " f RC — ¸4 S qõ  CNRSOS — ¸4 S qõ _  e ” > t à º › ' a > \  ¦ ˜ Ѐ  ,

z rc = z cn , α rc − 1 = α cn , α rc

z rc − 1

z rc = α cn

z cn , (18) β rc − 1

z rc = β cn

_  e ” > t à º › ' a > \  ¦ % 3 `  ¦ à º e ”  .  © œ› ' a  o   H ¿ º > 

°

ú     Ù ¼– Ð 1 l x% i † < Æ& h “   t à º z rc   H z cn õ  ° ú     ô  Ç



. 7 £ ¤

z rc = z cn . (19) RC — ¸4 S q\ " f ∇h\  ¦ S – Ð K $ 3 K " f ˜ Ѐ   CNRSOS — ¸4 S q s

 ÷ &Ù ¼– Ð ∇h = S_  " é ¶ ì  r$ 3 \  _ K  α rc -1=α cn s # Q



 ô  Ç . α ü < z_  › ' a > d ” s    & ñ ÷ &% 3 Ü ¼Ù ¼– Ð β_  › ' a > d ” 

“ É r

β rc = α rc z rc

= α cn + 1 z cn

= β cn + 1 z cn

(20) s

 . Ä ºo  % 3 “ É r e ” > t à º[ þ t“ É r 0 A_  › ' a > d ” `  ¦ ¸ ú ˜ ë ß –7 á ¤ ô 

Ç .

III. + s Ç Â ] Ø

Ä

ºo   H CNRSOS — ¸4 S q`  ¦ ë ß –[ þ t # Q ƒ  ½ ¨ % i  . s  — ¸4 S q

“ É

r ˜ Д > r ¸ ú š6 £ §_  Mullin-Herring ~ ½ Ó& ñ d ” \  K { © œô  Ç . s 

—

¸4 S qs   = s  d ” \  K { © œ÷ &  H \  ¦ RC — ¸4 S qõ _  ƒ  › ' a$ í Ü

¼– Ð [ O " î % i  . RC — ¸4 S qs  d ” (5)\  ¦  Ø Ô  H — ¸4 S qs Ù ¼

–

Ð CNRSOS — ¸4 S q“ É r d ” (15)\  ¦  Ø Ô  H — ¸4 S qs   ) a  . RC

—

¸4 S qõ  CNRSOS — ¸4 S q\ " f  } 9 l  t à ºü < $ í  © œ t à º  H

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-40- ô  Dz D GÓ ü t o † < Æ rt  “D hÓ ü t o ”, Volume 48, Number 1, 2004¸   1 Z 4



Ø Ôt ë ß –, 1 l x% i † < Æ& h “   t à º ° ú  6 £ §`  ¦ · ú ˜ à º e ”  . ¿ º — ¸ 4

S q\ " f_  t à º › ' a > \  ¦ ˜ Ѐ  , z rc = z cn , α rc - 1 = α cn , β rc - z 1

rc

cn e ” `  ¦ ˜ Ð# Œï  r  . RC — ¸4 S q\ " f_  Z  } s  

CNRSOS — ¸4 S q_  Z  } s ü < ° ú  6 £ §`  ¦ · ú ˜ à º e ” % 3  . Õ ªo “ ¦ CNRSOS — ¸4 S qs  ˜ Д > r ¸ ú š6 £ §_  4  ƒ  5 Å q ‚  + þ A ~ ½ Ó& ñ d ” `  ¦

¸

ú ˜  Ø Ô  H  כ Ü ¼– Ð · ú ˜ à º e ”  .

P c

p 8 ý ò k >

‘

: r ƒ  ½ ¨  H Õ ü æz  ´@ /† < Ɠ § “ §? /ƒ  ½ ¨q  t " é ¶ Ü ¼– Ð s À Ò# Q& ’  6

£ §.

Y c

p w Š à U Ø ”  ô

[1] A. L. Barabasi and H. Stanley, Fractals, scaling and growth far from equilibrium (Cambridge Univ. Press, 1995).

[2] P. Meakin, Fractals, scaling and growth far from

equilibrium (Cambridge Univ. Press, 1998).

[3] F. Family and T. Vicsek, Dynamics of Fractal Sur- faces (World Scientific, Singapore, 1991).

[4] F. Family and T. Vicsek, J. Phys. A18, L75 (1985).

[5] J. M. Kim and S. Das Sarma, Phys. Rev. E48, 2599 (1993).

[6] J. W. Lai and S. Das Sarma, Phys. Rev. Lett. 66, 2348 (1991).

[7] F. Family, Physica 168A, 561 (1990).

[8] J. M. Kim and S. Das Sarma, Phys. Rev. Lett. 78, 2903 (1994).

[9] J. M. Kim and J. M. Kosterlitz, Phys. Rev. Lett. 62, 2289 (1989); J. M. Kim and J. M. Kosterlitz and T.

Ala-Nissila, J. Phys. A24, 5569 (1991).

[10] J. Amar, P.-M. Lam and F. Family, Phys. Rev. E47, 3242 (1993).

[11] Z. Racz, M. Siegert, D. Liu and M. Plischke, Phys.

Rev. A43, 5275(1990).

[12] J. M. Lopez, Phys. Rev. Lett. 83, 4594 (1999).

Relation between Restricted Curvature Model and Conserved Noise Restricted Solid-on-Solid Model

Moon-Suk Kim and Jin Min Kim

Department of Physics and Computer Aided Molecular Design Research Center, Soongsil University, Seoul 156-743 (Received 6 October 2003)

We study the relation between the restricted curvature (RC) model and the conserved noise restricted solid on solid (CNRSOS) model. The surface width W of the RC model shows a roughness exponent α

rc

∼ = 1.5, a growth exponent β

rc

∼ = 0.375, and a dynamic exponent z

rc

≈4 in one substrate dimension. The surface width W of the CNRSOS model shows a roughness exponent α

cn

∼ = 0.49, a growth exponent β

cn

∼ = 0.12, and a dynamic exponent z

cn

≈4. The height difference of the RC model can be interpreted as the height of the CNRSOS model. Therefore, there are some relations exist between the exponents for the RC model and the CNRSOS model: z

rc

= z

cn

, α

rc

-1=α

cn

, and β

rc

-

z1

rc

cn

.

PACS numbers: 05.40.+j, 05.70.Ln, 68.35.Fx

Keywords: Restricted Curvature Model, Restricted Solid on Solid Model, Surface Roughness, Roughness

exponent, Growth exponent, Fractal Surface

수치

Fig. 2. The saturated value W 2 (L) of the CNRSOS model for L = 10, 20, 40, 80. α = 0.49 ± 0.01 is obtained from the data.
Fig. 3. The scaling plot of the surface width with α = 0.5 and z = 4. # Œl &#34; f /B GÒ ¦“É r C x = h x −1 + h x+1 − 2h x – Ð &amp;ñ _ ÷ &amp;%3  

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