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Trapped magnetic flux in hydrogen-rich high-temperature superconductors
V. S. Minkov, V. Ksenofontov, S. L. Budko +2
Recent discoveries of superconductivity in hydrogen-rich compounds stabilized by high pressures have shown that a critical temperature of superconductivity Tc can reach near room t…
High-temperature superconductivity in hydrides: experimental evidence and details
M. I. Eremets, V. S. Minkov, A. P. Drozdov +9
Since the discovery of superconductivity at 200 K in H3S [1] similar or higher transition temperatures, Tcs, have been reported for various hydrogen-rich compounds under ultra-high…
Linear magnetoresistance with a universal energy scale in a strong-coupling superconductor
W. Zhang, Y. J. Hu, C. N. Kuo +10
The recent discovery of a nonsaturating linear magnetoresistance in several correlated electron systems near a quantum critical point has revealed an interesting interplay between…
High-temperature superconductivity on the verge of a structural instability in lanthanum superhydride
Dan Sun, Vasily S. Minkov, Shirin Mozaffari +5
A possibility of high, room-temperature superconductivity was predicted for metallic hydrogen in the 1960s. However, metallization and superconductivity of hydrogen are yet to be u…
Superconductivity up to 243 K in yttrium hydrides under high pressure
P. P. Kong, V. S. Minkov, M. A. Kuzovnikov +9
The discovery of high-temperature conventional superconductivity in H3S with a critical temperature of Tc=203 K was followed by the recent record of Tc ~250 K in the face-centered…
Detection of hole pockets in the candidate type-II Weyl semimetal MoTe from Shubnikov-de Haas quantum oscillations
Y. J. Hu, W. C. Yu, Kwing To Lai +12
The bulk electronic structure of -MoTe features large hole Fermi pockets at the Brillouin zone center () and two electron Fermi surfaces along the direction. Howe…
Extreme magnetic field-boosted superconductivity
Sheng Ran, I-Lin Liu, Yun Suk Eo +10
Applied magnetic fields underlie exotic quantum states, such as the fractional quantum Hall effect and Bose-Einstein condensation of spin excitations. Superconductivity, on the oth…
Novel dynamics and critical currents in fast superconducting vortices at high pulsed magnetic fields
Maxime Leroux, Fedor F. Balakirev, Masashi Miura +3
Non-linear electrical transport studies at high-pulsed magnetic fields, above the range accessible by DC magnets, are of direct fundamental relevance to the physics of superconduct…
Superconductivity at 250 K in lanthanum hydride under high pressures
A. P. Drozdov, P. P. Kong, V. S. Minkov +11
The discovery of superconductivity at 203 K in H3S brought attention back to conventional superconductors whose properties can be described by the Bardeen-Cooper-Schrieffer (BCS) a…
Anisotropic magnetoresistance and upper critical fields up to 63 T in CaKFeAs single crystals
Tai Kong, Fedor F. Balakirev, William R. Meier +3
We report the temperature dependencies of the upper critical fields parallel to the c-axis and parallel to the ab-plane…
Anisotropic thermodynamic and transport properties of single crystalline CaKFeAs
W. R. Meier, T. Kong, U. S. Kaluarachchi +14
Single crystalline, single phase CaKFeAs has been grown out of a high temperature, quaternary melt. Temperature dependent measurements of x-ray diffraction, anisotropic…
Normal-state nodal electronic structure in underdoped high-Tc copper oxides
Suchitra E. Sebastian, N. Harrison, F. F. Balakirev +6
An outstanding problem in the field of high-transition-temperature (high Tc) superconductivity is the identification of the normal state out of which superconductivity emerges in t…
Quantum oscillations of the superconductor LaRuP : comparable mass enhancement in Ru and Fe phosphides
Philip J. W. Moll, Jakob Kanter, Ross D. McDonald +9
We have studied the angular dependent de Haas-van Alphen oscillations of LaRuP using magnetic torque in pulsed magnetic fields up to 60T. The observed oscillation frequenci…
Bounding the pseudogap with a line of phase transitions in YBCO cuprate superconductors
Arkady Shekhter, B. J. Ramshaw, Ruixing Liang +7
Close to optimal doping, the copper oxide superconductors show 'strange metal' behavior, suggestive of strong fluctuations associated with a quantum critical point. Such a critical…
Significant enhancement of upper critical fields by doping and strain in Fe-based superconductors
C. Tarantini, A. Gurevich, J. Jaroszynski +7
We report measurements of Hc2(T) up to 85 Tesla on Ba1-xKxAs2Fe2 single crystals and FeSe1-xTex films tuned by doping and strain. We observed an Hc2 enhancement by nearly 25 T at 3…
Direct observation of multiple spin zeroes in the underdoped high temperature superconductor YBa2Cu3O6+x
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +6
We report the direct observation of multiple `spin zeroes' in angle-dependent magnetic quantum oscillations measured up to 85T in YBa2Cu3O6+x, at which the amplitude falls to a dee…
Localized and itinerant dichotomy of electrons in Ba(Fe,Co)2As2
H. Q. Yuan, L. Jiao, F. F. Balakirev +9
Variant approaches, either based on the Fermi surface nesting or started from the proximity to a Mott-insulator, were proposed to elucidate the physics in iron pnictides, but no co…
{Rearrangement of the antiferromagnetic ordering at high magnetic fields in SmFeAsO and SmFeAsOF single crystals
S. Weyeneth, P. J. W. Moll, R. Puzniak +11
The low-temperature antiferromagnetic state of the Sm-ions in both nonsuperconducting SmFeAsO and superconducting SmFeAsOF single crystals was studied by magnetic t…
The magnetoresistance and Hall effect in CeFeAsO: a high magnetic field study
H. Q. Yuan, L. Jiao, J. Singleton +4
The longitudinal electrical resistivity and the transverse Hall resistivity of CeFeAsO are simultaneously measured up to a magnetic field of 45T using the facilities of pulsed magn…
Upper critical field of the 122-type iron pnictide superconductors
L. Jiao, J. L. Zhang, F. F. Balakirev +4
The upper critical fields () of the single crystals and were determined by means of measuring the electrical resistivit…
High magnetic field scales and critical currents in SmFeAs(O,F) crystals: promising for applications
Philip J. W. Moll, Roman Puzniak, Fedor Balakirev +4
Superconducting technology provides most sensitive field detectors, promising implementations of qubits and high field magnets for medical imaging and for most powerful particle ac…
Upper critical fields and thermally-activated transport of Nd(O_0.7F_0.3)FeAs single crystal
J. Jaroszynski, F. Hunte, L. Balicas +9
We present measurements of the resistivity and the upper critical field H_c2 of Nd(O_0.7F_0.3)FeAs single crystals in strong DC and pulsed magnetic fields up to 45 T and 60 T, resp…
Doping-Driven Collapse of the SDW Correlation Gap in SmFeAsOF
Scott C. Riggs, R. D. McDonald, J. B. Kemper +8
We report the Hall resistivity, of polycrystalline SmFeAsOF for four different fluorine concentrations from the onset of superconductivity through the collap…
Comparative High Field Magneto-Transport of Rare Earth Oxypnictides with Maximum Transition Temperatures
J. Jaroszynski, S. C. Riggs, F. Hunte +17
The recent discovery of a new class of superconducting oxypnictides with high transition temperatures may have profound implications for understanding unconventional high-temperatu…