We are an experimental condensed matter physics group in the physics department at Columbia University. Samples, packages etc should be addressed to: 538 W. 120 Street Pupin Hall 704 New York NY 10027 Group offices are located on the 13th floor of Pupin Hall. Abhay’s office is 1305 Pupin (office number 212-854-6335). The labs are mostly located at 104 Pupin Hall. The lab number is 212-854-0711. If you would like to visit us on campus, please see Links > Directions. Google Map Location