Abstract
The critical exponent [Formula presented] for the random-field Ising model order parameter is determined using extinction-free magnetic x-ray scattering for [Formula presented] in magnetic fields of 10 and 11 T. The observed value is consistent with other experimental random-field critical exponents, but disagrees sharply with Monte Carlo and exact ground state calculations on finite-sized systems.
Original language | English |
---|---|
Journal | Physical Review Letters |
Volume | 89 |
Issue number | 15 |
DOIs | |
State | Published - 2002 |
Externally published | Yes |
Funding
Funders | Funder number |
---|---|
Directorate for Mathematical and Physical Sciences | 9985067, 9802737, 9734051 |