title: Polarized alkali-metal vapor with minute-long transverse spin-relaxation time.
abstract: We demonstrate lifetimes of Zeeman populations and coherences in excess of 60 sec in alkali-metal vapor cells with inner walls coated with an alkene material. This represents 2 orders of magnitude improvement over the best paraffin coatings. We explore the temperature dependence of cells coated with this material and investigate spin-exchange relaxation-free magnetometry in a room-temperature environment, a regime previously inaccessible with conventional coating materials.
authors.affiliation: S. I. Vavilov State Optical Institute, St. Petersburg, 199034 Russia.
authors.forename: M V
authors.initials: MV
authors.lastname: Balabas
authors.forename: T
authors.initials: T
authors.lastname: Karaulanov
authors.forename: M P
authors.initials: MP
authors.lastname: Ledbetter
authors.forename: D
authors.initials: D
authors.lastname: Budker