getting error on negative clipping

i am getting 0.7 error on negative clipping.Is there any possible modification that we can make to the below circuit to eliminate that error 0.7v.
 

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The waveform at the output is normal.
The diode is reverse-biased when the input goes negative so it does not conduct. Then the negative output is normally the same as the input going to a peak of -5V.
The positive input swing forward-biases the diode so the output clips at about +0.7V.
 
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