A review of UTe${}_2$ at high magnetic fields

Abstract

Uranium ditelluride (UTe${}_2$) is recognized as a host material to unconventional spin-triplet superconductivity, but it also exhibits a wealth of additional unusual behavior at high magnetic fields. One of the most prominent signatures of the unconventional superconductivity is a large and anisotropic upper critical field that exceeds the paramagnetic limit. This superconductivity survives to 35 T and is bounded by a discontinuous magnetic transition, which itself is also field-direction-dependent. A different, reentrant superconducting phase emerges only on the high-field side of the magnetic transition, in a range of angles between the crystallographic $b$ and $c$ axes. This review discusses the current state of knowledge of these high-field phases, the high-field behavior of the heavy fermion normal state, and other phases that are stabilized by applied pressure.

34 pages, 12 figures (v2 corrects b axis lattice parameter)

References in corpus (49)

• Unconventional Superconductivity in Heavy Fermion UTe2
• Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
• Unconventional Superconductivity in UTe2
• Detection of a Pair Density Wave State in UTe${}_2$
• Metamagnetic Transition in Heavy Fermion Superconductor UTe2
• Multiple Superconducting Phases and Unusual Enhancement of the Upper Critical Field in UTe2
• Low energy band structure and symmetries of UTe2 from angle resolved photoemission spectroscopy
• Single-component superconducting state in UTe2 at 2 K
• First Observation of de Haas-van Alphen Effect and Fermi Surfaces in Unconventional Superconductor UTe2
• Low-dimensional antiferromagnetic fluctuations in the heavy-fermion paramagnetic ladder UTe${}_2$
• Magnetic-field sensitive charge density wave orders in the superconducting phase of UTe2
• Large Reduction in the $a$-axis Knight Shift on UTe${}_2$ with $T_{\mathrm{c}}$ = 2.1 K
• Superconducting order parameter in UTe${}_2$ determined by Knight shift measurement
• Field-induced tuning of the pairing state in a superconductor
• Magnetic-Field-Induced Phenomena in the Paramagnetic Superconductor UTe${}_2$
• Anisotropic response of spin susceptibility in the superconducting state of UTe${}_2$ probed with ${}^{125}$Te-NMR measurement
• Quasi-2D Fermi surface in the anomalous superconductor UTe2
• Interplay between magnetism and superconductivity in UTe2
• The fate of time-reversal symmetry breaking in UTe2
• Revealing a 3D Fermi Surface Pocket and Electron-Hole Tunneling in UTe${}_2$ with Quantum Oscillations
• Thermodynamic Investigation of Metamagnetism in Pulsed High Magnetic Fields on Heavy Fermion Superconductor UTe${}_2$
• Magnetic Properties under Pressure in Novel Spin-Triplet Superconductor UTe2
• Change of superconducting character in UTe2induced by magnetic field
• Field Induced Multiple Superconducting Phases in UTe2 along Hard Magnetic Axis
• Symmetry of magnetic correlations in spin-triplet superconductor UTe2
• Effect of uranium deficiency on normal and superconducting properties in unconventional superconductor UTe${}_2$
• Inhomogeneous Superconducting State Probed by ${}^{125}$Te NMR on UTe$_2
• Coexistence of ferromagnetism and superconductivity near quantum phase transition: The Heisenberg- to Ising-type crossover
• Microscopic imaging homogeneous and single phase superfluid density in UTe${}_2$
• Feedback of superconductivity on the magnetic excitation spectrum of UTe${}_2$
• Enhancement and Discontinuity of Effective Mass through the First-Order Metamagnetic Transition in UTe${}_2$
• Ubiquitous Spin Freezing in the Superconducting State of UTe2
• Expansion of the high field-boosted superconductivity in UTe2 under pressure
• Possible Coexistence of Antiferromagnetic and Ferromagnetic Spin Fluctuations in the Spin-triplet Superconductor UTe2 Revealed by 125Te NMR under Pressure
• Magnetic reshuffling and feedback on superconductivity in UTe2 under pressure
• de Haas-van Alphen Oscillations for the Field Along c-axis in UTe2
• Thermodynamic and electrical transport properties of UTe${}_2$ under uniaxial stress
• Pressure-induced structural phase transition and new superconducting phase in UTe2
• Spin triplet superconductivity driven by finite momentum spin fluctuations
• Magnetovolume Effect on the First-Order Metamagnetic Transition in UTe${}_2$
• Identifying f-electron symmetries of UTe2 with O-edge resonant inelastic X-ray scattering
• Reentrant superconductivity in UTe${}_2$
• Anisotropic signatures of the electronic correlations in the electrical resistivity of UTe${}_2$
• Anomalous vortex dynamics in spin-triplet superconductor UTe${}_2$
• Drastic change in magnetic anisotropy of UTe2 under pressure revealed by 125Te-NMR
• Multiple superconducting phases in heavy-fermion metals
• Anisotropic Enhancement of Lower Critical Field in Ultraclean Crystals of Spin-Triplet Superconductor UTe2
• Geometric Superconductivity in 3D Hofstadter Butterfly
• Sudden adiabaticity entering field-induced state in UTe2

Cited by in corpus (28)

• Enhanced triplet superconductivity in next generation ultraclean UTe2
• Superconducting Diode Effect in Multiphase Superconductors
• A quantum critical line bounds the high field metamagnetic transition surface in UTe${}_2$
• A concise 40 T pulse magnet for condensed matter experiments
• Incommensurate antiferromagnetism in UTe2 under pressure
• Anisotropic field-induced changes in the superconducting order parameter of UTe2
• Quantifying the U $5f$ covalence and degree of localization in U intermetallics
• Hydrostatic pressure studies on non-superconducting UTe2
• Nodal superconducting gap structure and topological surface states of UTe${}_2$
• Spectroscopic evidence of symmetry breaking in the superconducting vortices of UTe2
• Theoretical studies on off-axis phase diagrams and Knight shifts in UTe${}_2$ -- Tetra-critical point, d-vector rotation, and multiple phases
• UTe${}_2$: a narrow band superconductor
• Nuclear magnetic resonance spectroscopy in pulsed magnetic fields
• Slow magnetic quantum oscillations in the c-axis magnetoresistance of UTe${}_2$
• $b$-axis and $c$-axis Knight shift measurements in the superconducting state on ultraclean UTe${}_2$ with $T_c$ = 2.1 K
• Metamagnetism in the high-pressure tetragonal phase of UTe${}_2$
• Pauli 'unlimited': magnetic field induced-superconductivity in UTe${}_2$
• Magnetic fluctuations and anisotropy in UTe2: a multi-orbital study based on GGA+U and RPA
• Oscillatory magnetic field-dependent critical temperatures of ultraclean Type-II superconductors
• Scanning Tunneling Microscopy in high vectorial magnetic fields
• Reentrant Superconductivity from Competing Spin-Triplet Instabilities
• Resolving the Thermal Paradox: Many-body localization or fractionalization?
• Electronic structure of UTe${}_2$ under pressure
• Metamagnetism and tricriticalilty in heavy-fermion ferromagnet URhGe
• Quasiparticle Interference of Spin-Triplet Superconductors: Application to UTe${}_2$
• Theoretical Study of Impurity Effects on Superconductivity in UTe2
• Critical magnetic flux for Weyl points in the three-dimensional Hofstadter model
• Pressure-enhanced $f$-electron orbital weighting in UTe2 mapped by quantum interferometry