Multiple Superconducting Phases in UTe2: A Complex Analogy to Superfluid Phases of 3He

2021 ◽  
Vol 1 ◽  
Author(s):  
Shinsaku Kambe ◽  
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Low Temperatures ◽  
Quantum Statistics ◽  
Superconducting Phases ◽  
Fermion Systems ◽  
Quantum Liquids ◽  
Wave Symmetry ◽  
Ferromagnetic Interactions ◽  
Ordered State

In quantum liquids, large differences are observed owing to differences in quantum statistics. The physical properties of liquid <sup>3</sup>He (Fermion) and <sup>4</sup>He (Boson) are considerably different at low temperatures. After the discovery of superconductivity in electron (i.e., Fermion) systems, a similar pairing ordered state was expected for <sup>3</sup>He. Remarkably, the observed ordered state of <sup>3</sup>He was more surprising than expected, multiple superfluid phases in the <em>T-P</em> phase diagram. The origin of the multiple phases was attributed to ferromagnetic interactions in the <em>p</em>-wave symmetry state.

scholarly journals Group-theoretical analysis of structural instability, vacancy ordering and magnetic transitions in the system troilite (FeS)–pyrrhotite (Fe1−x S)

2019 ◽  
Vol 75 (6) ◽  
pp. 1208-1224 ◽  
Author(s):  
Charles R. S. Haines ◽  
Christopher J. Howard ◽  
Richard J. Harrison ◽  
Michael A. Carpenter
Keyword(s):  
Phase Diagram ◽  
Low Temperatures ◽  
Structural Instability ◽  
Exact Nature ◽  
Magnetic Structures ◽  
Atomic Displacements ◽  
Vacancy Ordering ◽  
Continuous Rotation ◽  
Ordered State ◽  
Group Theoretical Analysis

A group-theoretical framework to describe vacancy ordering and magnetism in the Fe1−x S system is developed. This framework is used to determine the sequence of crystal structures consistent with the observed magnetic structures of troilite (FeS), and to determine the crystallographic nature of the low-temperature Besnus transition in Fe0.875S. It is concluded that the Besnus transition is a magnetically driven transition characterized by the rotation of the moments out of the crystallographic plane to which they are confined above the transition, accompanied by small atomic displacements that lower the symmetry from monoclinic to triclinic at low temperatures. Based on the phase diagram, magnetically driven phase transitions at low temperatures are predicted in all the commensurate superstructures of pyrrhotite. Based on the phase diagram, magnetically driven spin reorientations at low temperatures are predicted in all the commensurate superstructures of pyrrhotite. The exact nature of the spin rotation is determined by the symmetry of the vacancy-ordered state and based on this spin-flop transitions in 3C and 5C pyrrhotite and a continuous rotation akin to that seen in 4C pyrrhotite are predicted. A Besnus-type transition is also possible in 6C pyrrhotite. Furthermore, it is clarified that 3C and 4C pyrrhotite carry a ferrimagnetic moment whereas 5C and 6C are antiferromagnetic.

INVAR M93

Alloy Digest ◽  
2008 ◽  
Vol 57 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Low Temperatures ◽  
Bend Strength ◽  
Temperature Performance ◽  
Ni Content ◽  
Precision Alloys ◽  
Ni Alloy

Abstract Invar is an Fe-Ni alloy with 36% Ni content that exhibits the lowest expansion of known metals from very low temperatures up to approximately 230 deg C (445 deg F). Invar M93 is a cryogenic Invar with improved weldability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear and bend strength as well as fracture toughness and fatigue. It also includes information on low temperature performance as well as forming and joining. Filing Code: FE-143. Producer or source: Metalimphy Precision Alloys.

TECHALLOY NICKEL 200

Alloy Digest ◽  
1977 ◽  
Vol 26 (6) ◽  
Keyword(s):  
Physical Properties ◽  
Surface Treatment ◽  
Low Temperatures ◽  
Nickel Alloys ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
General Purpose ◽  
Commercially Pure ◽  
Electrical Components ◽  
Nickel 200

Abstract TECHALLOY Nickel 200 is commercially pure wrought nickel. It maintains good strength at elevated temperatures and is tough and ductile at low temperatures. It is a general-purpose material when the properties of nickel alloys are not needed. Its many uses include spun and cold-formed parts, electrical components, transducers and nickel-cadmium batteries. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-246. Producer or source: Techalloy Company Inc..

NITRALLOY 125

Alloy Digest ◽  
1957 ◽  
Vol 6 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Low Temperatures ◽  
Heat Treating ◽  
Ammonia Gas ◽  
Steel Mills ◽  
Special Alloy

Abstract NITRALLOY 125 (0.20-0.30% C) is a special alloy steel which can be nitrided, that is, surface hardened, without final quenching, by the action of ammonia gas at relatively low temperatures. Nitralloy 125 is also known as Nitralloy H. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-61. Producer or source: Alloy steel mills and foundries.

HISTAR 355

Alloy Digest ◽  
2015 ◽  
Vol 64 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Yield Strength ◽  
Physical Properties ◽  
Structural Steel ◽  
Tensile Properties ◽  
Low Temperatures ◽  
High Yield ◽  
High Yield Strength

Abstract Histar 355 is a structural steel combining high yield strength (355 MPa minimum) with excellent toughness at low temperatures and outstanding weldability. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on forming, machining, and joining. Filing Code: SA-731. Producer or source: ArcelorMittal and ArcelorMittal Luxembourg.

TLS A6

Alloy Digest ◽  
2006 ◽  
Vol 55 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Low Temperatures ◽  
Heat Treating ◽  
Tool Steels

Abstract TLS A6 is a medium-alloy air-hardening tool steel that is known for its through hardening at the low temperatures typically used with oil-hardening tool steels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-638. Producer or source: Timken Latrobe Steel.

THYRODUR 2510

Alloy Digest ◽  
1993 ◽  
Vol 42 (11) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Low Temperatures ◽  
Heat Treating ◽  
Die Steel ◽  
Aisi D2

Abstract THYRODUR 2510 (AISI D2) is an oil hardening, non-shrinking die steel which can be hardened at relatively low temperatures. The alloy exhibits excellent wear resistance. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating and surface treatment. Filing Code: TS-521. Producer or source: Thyssen Specialty Steels Inc.

High-Zt Half-Heusler Thermoelectrics, Ti0.5Zr0.5NiSn and Ti0.5Zr0.5NiSn0.98sSb0.02: Physical Properties at Low Temperatures

2018 ◽  
Author(s):  
Gerda Rogl ◽  
Kunio Yubuta ◽  
Vitaliy Romaka ◽  
Herwig Michor ◽  
Erhard Schafler ◽  
...  
Keyword(s):  
Physical Properties ◽  
Low Temperatures

Calculation of physical properties of glass via the phase diagram approach

2017 ◽  
Vol 457 ◽  
pp. 36-43 ◽  
Author(s):  
Q.Y. Zhang ◽  
W.J. Zhang ◽  
W.C. Wang ◽  
Z.H. Jiang
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Diagram Approach

Physical Properties of Chromium Alums at Low Temperatures

1952 ◽  
Vol 24 (2) ◽  
pp. 74-78 ◽  
Author(s):  
Julian Eisenstein
Keyword(s):  
Physical Properties ◽  
Low Temperatures
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