Physical Review B: Condensed Matter and Materials Physics (also known as PRB) is a peer-reviewed, scientific journal, published by the American Physical Society (APS). The Editor of PRB is Laurens W. Molenkamp. It is part of the Physical Review family of journals. The current acting Editor in Chief is Dan T. Kulp. PRB currently publishes over 4500 papers a year, making it one of the largest physics journals in the world.