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  2. Triplet state - Wikipedia

    en.wikipedia.org/wiki/Triplet_state

    Examples of atoms in singlet, doublet, and triplet states. In quantum mechanics, a triplet state, or spin triplet, is the quantum state of an object such as an electron, atom, or molecule, having a quantum spin S = 1. It has three allowed values of the spin's projection along a given axis m S = −1, 0, or +1, giving the name "triplet".

  3. Ferromagnetic superconductor - Wikipedia

    en.wikipedia.org/wiki/Ferromagnetic_superconductor

    Early investigations [5] studied the coexistence of conventional s-wave superconductivity with itinerant ferromagnetism. However, the scenario of spin-triplet pairing soon gained the upper hand. [6] [7] A mean-field model for coexistence of spin-triplet pairing and ferromagnetism was developed in 2005. [8] [9]

  4. Uranium ditelluride - Wikipedia

    en.wikipedia.org/wiki/Uranium_ditelluride

    Superconductivity in UTe 2 appears to be a consequence of triplet electrons spin-pairing. [2] The material acts as a topological superconductor, stably conducting electricity without resistance even in high magnetic fields. [1] It has superconducting transition temperature at Tc= 2K. [3]

  5. Quantum spin liquid - Wikipedia

    en.wikipedia.org/wiki/Quantum_spin_liquid

    In condensed matter physics, a quantum spin liquid is a phase of matter that can be formed by interacting quantum spins in certain magnetic materials. Quantum spin liquids (QSL) are generally characterized by their long-range quantum entanglement, fractionalized excitations, and absence of ordinary magnetic order.

  6. Spin chemistry - Wikipedia

    en.wikipedia.org/wiki/Spin_chemistry

    The radical-pair mechanism explains how external magnetic fields can prevent radical-pair recombination with Zeeman interactions, the interaction between spin and an external magnetic field, and shows how a higher occurrence of the triplet state accelerates radical reactions because triplets can proceed only to products, and singlets are in ...

  7. Reentrant superconductivity - Wikipedia

    en.wikipedia.org/wiki/Reentrant_superconductivity

    In physics, reentrant superconductivity is an effect observed in systems that lie close to the boundary between ferromagnetic and superconducting.By its very nature (normal) superconductivity (condensation of electrons into the BCS ground state) cannot exist together with ferromagnetism (condensation of electrons into the same spin state, all pointing in the same direction).

  8. Fractional vortices - Wikipedia

    en.wikipedia.org/wiki/Fractional_vortices

    In the context of d-wave superconductivity, a fractional vortex (also known as splintered vortex [13] [14]) is a vortex of supercurrent carrying unquantized magnetic flux Φ 1 <Φ 0, which depends on parameters of the system. Physically, such vortices may appear at the grain boundary between two d-wave superconductors, which often looks like a ...

  9. Cooper pair - Wikipedia

    en.wikipedia.org/wiki/Cooper_pair

    Electrons have spin-1 ⁄ 2, so they are fermions, but the total spin of a Cooper pair is integer (0 or 1) so it is a composite boson. This means the wave functions are symmetric under particle interchange. Therefore, unlike electrons, multiple Cooper pairs are allowed to be in the same quantum state, which is responsible for the phenomenon of ...