How can I plot this signal?

I want to plot a magnitude and phase of a signal which the x coordinate is logf and y coordinate once is 20*log(abs(Av)) and once is 20*log(angle(Av)).here is my code but it doesn't plot anything.what is the ploblem?

close all;clear;clc;

gm = 0.04;
RL = 10000;
CL = 10^(-9);
f = logspace(-1,2);
Av = (-gm*RL)/(1 + RL*CL*f*1i);

%magnitude
subplot(2,1,1);
loglog(f,(abs(Av))^20);
title('magnitude');
grid on;

%phase
subplot(2,1,2);
loglog(f,(angle(Av))^20);
title('phase');

Answer 1

[Alan Stevens]

Like this?

gm = 0.04;
RL = 10000;
CL = 10^(-9);
f = logspace(-1,2);
Av = (-gm*RL)./(1 + RL*CL*f*1i);

%magnitude
subplot(2,1,1);
loglog(f,(abs(Av)).^20);  % Notice the dot .^ 
title('magnitude');
grid on;

%phase
subplot(2,1,2);
loglog(f,(angle(Av)).^20);
title('phase');
grid

Answer 2

[KALYAN ACHARJYA]

gm = 0.04;
RL = 10000;
CL = 10^(-9);
f = logspace(-1,2);
Av = (-gm*RL)./(1 + RL*CL*f*1i);
%magnitude
subplot(2,1,1);
loglog(f,(abs(Av)).^20);
title('magnitude');
grid on;
%phase
subplot(2,1,2);
loglog(f,(angle(Av)).^20);
title('phase');