HEИндивидуална стипендия2024–2026

OPTIMISTIC · Molecular Spin Interactions in Magnetic Fields of Superconducting Vortices

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2024-02-01 → 2026-01-31
Финансиране от ЕС: 215 534 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Молекулните спинове се изследват в силни магнитни полета, създадени от свръхпроводящи вихри. Това помага за разработването на надеждни квантови битове (кубити) и по-доброто разбиране на магнетизма в материали с дебелина само един атом.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Molecular Spin Interactions in Magnetic Fields of Superconducting Vortices

Quantum technologies promise to transform computing and information processing, but their development depends on finding reliable building blocks — known as quantum bits, or qubits. Molecular spin systems are promising qubit candidates because they can be chemically engineered with precision and produced in large numbers. However, a key challenge is understanding how these molecular spins behave when exposed to strong magnetic fields, particularly fields that are highly localized at the nanometer scale. The OPTIMISTIC project aimed to address this challenge by placing molecular spin systems onto the surfaces of superconducting materials. In certain superconductors, magnetic flux penetrates the material through tiny channels called Abrikosov vortices, each carrying exactly one quantum of magnetic flux. The magnetic field at the center of these vortices is extremely strong and confined to a region just a few nanometers wide — far smaller than what conventional magnets can achieve. This creates a unique laboratory for studying how molecular spins respond to intense, highly localized magnetic fields. At the same time, the project aimed to harness this molecular spin sensing capability for a second purpose: investigating magnetism in atomically thin two-dimensional materials. Materials just one atom thick can exhibit exotic magnetic states — such as ferromagnetism or helimagnetic spirals — that are difficult to probe with conventional techniques. A magnetic molecule on the tip of a scanning probe microscope could serve as an ultrasensitive local probe of these magnetic states, opening new avenues for understanding and eventually exploiting 2D magnetism in future technologies. The project had four main objectives: (1) upgrading the experimental equipment to enable new types of measurements, (2) mapping the magnetic field of vortices in high-temperature superconductors using a magnetic molecule attached to a scanning probe microscope tip, (3) studying how different molecular spin systems behave in these extreme local fields, and (4) applying the developed techniques to investigate magnetism in atomically thin two-dimensional materials. The fellowship was carried out at Aalto University, Finland.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Successful implementation of modern quantum technologies is strongly tied to the efficient realization of quantum bits - qubits that promise to revolutionize our current computational and information processing schemes. However, an outstanding challanges concerns the scalability with an expanding number of qubits, making the execution of complex algorithms problematic. In this respect, molecular spin systems are attractive candidates for a scalable qubit platform. The principal idea of the project is to study the behavior and quantum interactions of molecular spin systems exposed to the magnetic fields at the center of Abrikosov vortices in type-II superconductors (BSCCO, YBCO, NbSe2) using state-of-the-art scanning probe microscopy (SPM). This concept promises access to strongly localized magnetic fields of exceptional strength, offering novel perspectives for molecular qubit research, surface science, and material science. The findings will be further utilized to study magnetic ordering in exotic 2D materials (CrBr3, NiI2) exhibiting noncollinear magnetic ordering. The project's novelty lies both in the methodology and research objectives, which will be achieved via a unique synergy of host group expertise in superconducting substrates and preparation of exotic 2D material systems and researcher's know-how in molecular spin systems and magnetic sensing with functionalized SPM tips (metallocene molecules).

Оригинален текст от CORDIS (на английски).

Участници

AALTO KORKEAKOULUSAATIO SR · EspooКоординаторФинландия