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2 Magnetic Monopoles in Spin Ices
Fig. 2.3 Schematic diagram of constraint on magnetic monopole motion. top: A pair of magnetic
monopoles has drifted apart via spin flips and are connected to each other via a Dirac string
(highlighted in yellow). middle: A second pair of magnetic monopoles is generated close to the
Dirac string. bottom. Magnetic monopole charge of a certain sign is not allowed to sequentially
traverse the path taken previously by a magnetic charge of the same sign due to energetically
unfavorable spin flips (crossed out spin)
2 Magnetic Monopoles in Spin Ices
Fig. 2.3 Schematic diagram of constraint on magnetic monopole motion. top: A pair of magnetic
monopoles has drifted apart via spin flips and are connected to each other via a Dirac string
(highlighted in yellow). middle: A second pair of magnetic monopoles is generated close to the
Dirac string. bottom. Magnetic monopole charge of a certain sign is not allowed to sequentially
traverse the path taken previously by a magnetic charge of the same sign due to energetically
unfavorable spin flips (crossed out spin)