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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".
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]
His discovery of an antiferromagnetic neutron spin resonance in spin-triplet superconductor candidate UTe 2 is particularly important because it suggests that superconductivity in spin-triplet superconductors may also be driven by antiferromagnetic spin fluctuations instead of ferromagnetic spin fluctuations [29]
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]
Spin is an intrinsic form of angular momentum carried by elementary ... and superconductivity, ... (triplet states) and a 1-dimensional spin-0 representation ...
Unconventional superconductors are materials that display superconductivity which is not explained by the usual BCS theory or its extension, the Eliashberg theory.The pairing in unconventional superconductors may originate from some other mechanism than the electron–phonon interaction. [1]
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).
The superscript three (read as triplet) indicates that the multiplicity 2S+1 = 3, so that the total spin S = 1. This spin is due to two unpaired electrons, as a result of Hund's rule which favors the single filling of degenerate orbitals. The triplet consists of three states with spin components +1, 0 and –1 along the direction of the total ...