Recently, I have interest in that sort of the academic field.
These days, I am curious to know more about that academic field.
ご質問ありがとうございます。
① "Recently, I have interest in that sort of the academic field."=「最近、そのような学問の分野に私は興味があります。」
② "These days, I am curious to know more about that academic field."=「この頃、私はその学問の分野についてもっと知りたいと思っています。」
ご参考になると幸いです。