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Magnetic spin ice states in artificial magnetic frustrated systems
Schánilec, Vojtěch ; Hrabec, Aleš (oponent) ; Rougemaille, Nicolas (vedoucí práce)
Artificial spin-ice systems are an appropriate tool for exploring unusual phenomena that are hard to observe in nature. A special case of artificial spin ice system is a kagome lattice that allows you to examine the collective behaviour of spin in the matter. This system has a number of predicted exotic magnetic phases that have not yet been measured and investigated in real space. In this work, we deal with the modification of the kagome lattice so that it can be used to study exotic states in real space. Experiments performed on our modified lattice indicate that we are able to detect both low and high energy states, and therefore the proposed modification of the kagome lattice is suitable for exploring its exotic states in real space.
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Magnetic phases in an artificial realization of the square ice model
Brunn, Ondřej ; Hrabec, Aleš (oponent) ; Rougemaille, Nicolas (vedoucí práce)
Artificial spin systems are convenient tool for exploring and manipulating unconventional exotic low-energy states directly in real space. Experimental realization of these system is made by pattering arrays of interacting nanomagnets with given geometry. First and also probably the most extensively studied artificial system have regular square lattice. In this work we deal with the modification of the square geometry that enable us to induce distinct magnetic phases of ice-type models. Results show that with appropriate tuning of the modification, several magnetic phases can be reached, including the disordered spin-liquid phase with trapped magnetic quasi-particles (magnetic monopoles).
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Magnetic phases in an artificial realization of the square ice model
Brunn, Ondřej ; Hrabec, Aleš (oponent) ; Rougemaille, Nicolas (vedoucí práce)
Artificial spin systems are convenient tool for exploring and manipulating unconventional exotic low-energy states directly in real space. Experimental realization of these system is made by pattering arrays of interacting nanomagnets with given geometry. First and also probably the most extensively studied artificial system have regular square lattice. In this work we deal with the modification of the square geometry that enable us to induce distinct magnetic phases of ice-type models. Results show that with appropriate tuning of the modification, several magnetic phases can be reached, including the disordered spin-liquid phase with trapped magnetic quasi-particles (magnetic monopoles).
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Magnetic spin ice states in artificial magnetic frustrated systems
Schánilec, Vojtěch ; Hrabec, Aleš (oponent) ; Rougemaille, Nicolas (vedoucí práce)
Artificial spin-ice systems are an appropriate tool for exploring unusual phenomena that are hard to observe in nature. A special case of artificial spin ice system is a kagome lattice that allows you to examine the collective behaviour of spin in the matter. This system has a number of predicted exotic magnetic phases that have not yet been measured and investigated in real space. In this work, we deal with the modification of the kagome lattice so that it can be used to study exotic states in real space. Experiments performed on our modified lattice indicate that we are able to detect both low and high energy states, and therefore the proposed modification of the kagome lattice is suitable for exploring its exotic states in real space.
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