Abstract
We report a de Haas–van Alphen effect study of the Fermi surface of using low-temperature torque magnetometry up to 45 T. This system is a close structural analog of the collapsed tetragonal nonmagnetic phase of . We find the Fermi surface of to differ from other related ternary phosphides in that its topology is highly dispersive in the axis, being three dimensional in character and with identical mass enhancement on both electron and hole pockets (). This suggests that when the bonding between pnictogen layers becomes important nesting conditions are not fulfilled.
- Received 20 May 2009
DOI:https://doi.org/10.1103/PhysRevLett.103.026404
©2009 American Physical Society