Wd. Hutchison et al., Magnetic ordering in two dimensional manganese stearate films: A nuclear orientation study, SOL ST COMM, 109(4), 1999, pp. 239-242
Two dimensional manganese stearate films incorporating radioactive Mn-54 ha
ve been produced using the Langmuir-Blodgett technique. Low temperature nuc
lear orientation measurements on these films show a degree of magnetic orde
r even in zero applied magnetic field; a result which is discussed in relat
ion to the Mermin-Wagner theorem which rules out ordering of Heisenberg spi
ns in low dimensional systems with continuously symmetric interactions. (C)
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