Stop transform translate sharply

 GameObject p = GameObject.Find("Player");
 float moveHorizontal = Input.GetAxis("Horizontal");
 float moveVertical = Input.GetAxis("Vertical");
 Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
 p.transform.Translate(movement * speed * Time.deltaTime);

I was previously using the rigidbody velocity to move my spaceship from the second tutorial at the unitys learn section but couldnt get the ship to immediately stop when i released the movement keys (it takes something like half a second). I then tried using the transform translate but the ship still seems to smooth the stop a little bit. Im trying to make it stop sharply. How can I achieve that effect? I even tried using transform.position directly but it didnt work.