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{Communications in Physics, Vol.\;??, No.\;? (2005), pp.\;\thepage\,--\,??}} 
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\markboth{\footnotesize 
TEN CAC TAC GIA, VIET HOA
}{\footnotesize  
DAY LA TEN BAI RUT GON, VIET HOA...
}
\begin{center}
\vskip-3cm %Khong thay doi
{\large \bf 
TEN BAI  VIET HOA, DONG 1
\\TEN BAI, DONG 2 (NEU KHONG CO THI XOA DONG NAY)
}
\end{center}

\vskip0.1cm %Khong thay doi
\centerline{
TEN TAC GIA 1$^a$, TAC GIA 2 $^{a \ ,b}$, V.V..., AND TAC GIA N$^ c$ (VIET HOA)
}
\vskip0.1cm %Khong thay doi
\begin{center}{\it 
$^a$Ten co quan tac-gia $1$, viet chu thuong
\\$^b$Ten co quan tac-gia $2$, vi-du: Hanoi National University
\\$^c$ Ten co quan tac-gia $n$, xoa dong neu khong co 
}
\end{center}

\vskip0.4cm %Khong thay doi
\leftskip1.05cm %Khong thay doi

{\small \noindent {\bf Abstract.} \it
Bat-dau viet phan tom tat cua bai bao tu day. Tom-tat bai-bao can viet ngan-gon, 
khong qua 10 dong, can neu ro van-de duoc nghien cuu, phuong-phap duoc su-dung 
trong bai-bao, dong-thoi neu bat noi-dung va ket-qua chinh thu-duoc trong bai, 
y-nghia khoa-hoc cua ket qua, v.v... ... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
}

\leftskip0cm %Khong thay doi

\vskip0.4cm \vskip0.4cm %Khong thay doi
\centerline{\bf
 I. TIEU DE MUC 1 (VIET HOA, CAN GIUA DONG)
}

\vskip0.2cm %Khong thay doi
Trong bai mau nay, chung-toi khong co y-ddinh huong-dan su-dung LaTex, ma coi nhu
cac ban da biet su-dung thanh-thao LaTex roi. 

Muc-dich cua ``bai-bao''  nay la minh-hoa nhung quy-dinh chung cua tap-chi Commun. in Phys. 
ve cach trinh-bay bai-bao ma cac tac-gia phai tuan theo khi soan file nguon gui toi ban-bien-tap
truoc khi no dduoc chuyen cho phan-bien nhan-xet.  

Vi la bai minh-hoa, nen chung-toi khong the bao-quat het tat-ca
cac tinh-huong xay-ra, do vay khi gap ``van-de", xin cac ban lien-he truc-tiep voi chung-toi
dde dduoc giai-dap.  Dia-chi: BTC Hoi nghi VLLT TQ,  E-mail: hnvllt@iop.vast.ac.vn.
Cac ban co-the download cac file styles can thiet tu Website cua Hoi-nghi  http://www.iop.vast.ac.vn

\vskip0.4cm %Khong thay doi
\centerline{\bf 
II. TIEU DE MUC 2 (VIET HOA, CAN GIUA DONG)
}
\vskip0.2cm %Khong thay doi
Cac quy-dinh chung khi viet bai dang trong tap-chi Communication in Physics: 
Bai viet bang tieng Anh, su-dung standard LaTex voi cac styles chuan cua LaTex, va cac styles 
duoc Tap-chi cung-cap trong cac files ddinh-kem: ``phys.cls", ``phys.sty", ``phys.tex". 
Trong truong-hop dac-biet, khi tac-gia phai su-dung them cac styles khac de viet bai, thi tac-gia 
phai gui cho Ban-bien-tap ca nhung file styles nay nua.

Kich-thuoc trang giay, khoang-cach le-tren, le-duoi, le-trai, le-phai, khoang-cach 
giua cac dong, v.v... da duoc dinh-nghia trong cac file styles ddinh-kem. 
Khoang-cach giua cac phan trong bai, vi du giua ten-bai va ten tac-gia, giua ten 
tac-gia va ten co-quan, giua dong-tieu-dde va dong tiep theo, v.v... da duoc an-dinh 
bang cac con so cu-the trong sample, khong duoc thay-doi chu'ng.

Cac bao-cao cua Hoi-nghi Vat-ly Ly-thuyet Toan-quoc hang-nam 
ddang-trong phu-ban (supplement) cua Tap-chi khong dduoc vuot qua' 6 trang 
(ke ca hinh-ve va tai-lieu trich-dan) trong khuon-kho format LaTex voi cac 
style nhu dda quy-ddinh.

Phan trich-dan REFERENCES phai viet theo ddung thu-tu va quy-cach:
Authors, Journal in nghieng, Volumn in ddam (Year) Page.
Vidu:
N. Q. Huong, J. L. Bimman, {\it J. Chem. Phys.}, {\bf 108} (1998) 1769.
DDe citer den bai-bao tren, no duoc liet-ke o muc ``thebibliography" cuoi bai, 
va duoc danh-dau, vi-du bang {H}. Khi muon citer toi bai-bao nay, ta su-dung label H 
cua bai-bao, khi ddo bai-bao duoc ddanh-so tu-dong la \cite{H} ($\backslash$cite\{H\}). 
Tuong-tu nhu-the, ta co the citer lien ba bai bao nhu sau \cite{Q,J,QTH} 
($\backslash$cite\{Q,J,QTH\}). 

\vskip0.4cm %Khong thay doi
\noindent {\bf 
II.1. Tieu-de muc-con 1 cua phan II neu co (chu thuong, in-ddam)
}

\vskip0.2cm %Khong thay doi
Tieu-de muc con viet chu thuong, in ddam. Khoang-cach cua tieu-de nay doi-voi 
dong truoc va dong sau da dduoc xac-dinh cu-the, khong dduoc thay doi. 

Cac cong-thuc duoc danh-so tu-dong trong bai va duoc ga'n label dde sau-nay de-dang citer den no.
O cuoi cac cong-thuc, khi can-thiet phai co dau-cham, dau-phay tuy-theo nghia cua cau.
Vi-du duoi day la  hai cong-thuc duoc danh so tu-dong:
\begin{equation}
H=E_g+\frac{\vec{p_e^2}}{2 m_e^*}+
V_{\textrm{conf}}(\vec{r_e}) ,  \label{energy}
\end{equation}
where $m_e^*$ la khoi-luong hieu-dung cua electron.

Chu-y cong-thuc tren duoc ket-thuc bang dau-phay vi chua ket-thuc cau, con cong-thuc 
duoi-dday dduoc ket-thuc bang dau-cham ``.'' vi ket-thuc cau cung voi cau nay
\begin{equation}
\alpha^\beta = \frac{\gamma}{\lambda} .  \label{alpha}
\end{equation}

Sau-nay, khi citer den cong-thuc thu nhat (co label ``energy'') ta viet, vi-du, cong-thuc (\ref{energy}) 
($\backslash$ref\{energy\}) la nang-luong cua electron vung-dan trong ho-the, con 
cong-thuc (\ref{alpha}) ($\backslash$ref\{alpha\}) la mot cong-thuc khac co' label ``alpha''.


\vskip0.4cm %Khong thay doi
\noindent{\bf 
II.2. Muc-con 2 cua muc II viet chu-thuong, in ddam
}

\vskip0.2cm %Khong thay doi
Trong muc nay chung-toi minh-hoa cach ddua ddo-thi vao LaTex: ta co-the chen vao trong bai
cac file hinh-ve voi cac loai format khac-nhau, nhu *.ps, *.eps, *.bmp, *.wmf.
Trong hinh duoi,  ta chen file ``Fig1.ps" vao vung hinh-chu-nhat, dai 7 cm, rong 4 cm, 
va viet chu-thich duoi hinh-ve nhu-sau:

\centerps{7cm}{4cm}{fig1.ps}
%\centeeps{7cm}{4cm}{fig1.eps}
%\centebmp{7cm}{4cm}{fig1.bmp}
%\centewmf{7cm}{4cm}{fig1.wmf}

\begin{quotation}
\noindent {\small 
{\bf Fig.\;1.} 
Day-la figure caption cua hinh-ve 1 duoc nhap tu file ben ngoai ``Fig1.ps".
Duong-lien-net la ket-qua ly-thuyet, nhung ddiem roi-rac la so-lieu thuc-nghiem \cite{J}
}
\end{quotation}

\vskip0.4cm %Khong thay doi
\centerline{\bf 
III. KET LUAN (VIET HOA, CAN GIUA DONG)
}
\vskip0.2cm %Khong thay doi
Chung-toi da minh-hoa mot cach tom-tat nhung quy-dinh ve cach trinh-bay bai-bao cua
tap-chi Communication in Physics. Phan con lai duoi-day la minh-hoa cach trinh-bay 
cam-on, va danh-muc cac tai-lieu trich-dan.

File ``sample.tex'' nay co the dich bang phan-mem PCTexV4 tren Windows 
hoac bang lenh ``latex  sample.tex'' trong moi-truong Linux. 
Cac file styles ddinh-kem  can dduoc copy vao cung thu-muc voi file ``sample.tex''

Cuoi-cung, xin nhac-lai, dday chi la mot bai minh-hoa cach trinh-bay bai-bao 
in trong tap-chi Communication in Physics. 
Cac ban co-the lien-he truc-tiep voi BTC Hoi nghi VLLT TQ dde dduoc thong-tin them. 
Dia-chi  E-mail: hnvllt@iop.vast.ac.vn.

\vskip0.4cm %Khong thay doi
\centerline{\bf ACKNOWLEDGMENT } % Khong thay doi
\vskip0.2cm %Khong thay doi
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This work is supported by the National program on Basic Research
4.1.1601 ``Theory of low dimensional systems and nano-structures" and by the VAST's research
project in Material science direction ``Modeling of nano-devices"
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\begin{thebibliography}{99} %Phan trich-dan 
{\small 
\parskip-0.1cm %Khong thay doi
%%%%%%%%%%%%%%%%%%%%%
\bibitem{H} N. Q. Huong, J. L. Bimman, {\it J. Chem. Phys.}, {\bf 108} (1998) 1769.
\bibitem{Q} N. H. Quang, S. Ohnuma, A. Natori, {\it Phys. Rev.B}, {\bf 62} (2000) 12955.
\bibitem{J} S. G. Jayama, K. Navaneethakrishnan, {\it J. App. Phys.}, {\bf 89} (2001) 6198.
\bibitem{QTH}D. N. Quang, V. N. Tuoc, and T. D. Huan, {\it Phys. Rev.B},  {\bf 68} (2003) 195316
%%%%%%%%%%%%%%%%%%%%%
}
\end{thebibliography}

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