Abstract
The low-temperature behavior () of a random-bond Ising chain in a magnetic field is considered [, is a fixed random sequence of numbers +1 and -1 with concentrations and , respectively]. The ground-state energy , magnetization and zero-point entropy are calculated exactly. It is shown that and are discontinuous functions of magnetic field having jumps at , .
- Received 13 February 1978
DOI:https://doi.org/10.1103/PhysRevB.18.1474
©1978 American Physical Society