Magnetic Signatures of Pressure-Induced Multicomponent Superconductivity in UTe2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10499669" target="_blank" >RIV/00216208:11320/25:10499669 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pihkVS055j" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pihkVS055j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.134.236501" target="_blank" >10.1103/PhysRevLett.134.236501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic Signatures of Pressure-Induced Multicomponent Superconductivity in UTe2

Popis výsledku v původním jazyce

The phase diagram of the heavy fermion compound UTe(2)contains multiple superconducting phases, several of which show characteristics of odd-parity pairing. We have investigated the pressure dependence of the superconducting transition in high-quality crystals of UTe(2)by tracking its signature in the magnetic susceptibility (T). A single, sharp superconducting transition is observed at low pressures &lt; 0.3 GPa. At higher pressure, a second feature emerges in (T), which is located at the lower-temperature superconducting phase boundary previously identified in specific heat measurements. This second transition anomaly in (T) can be attributed to a step change in the London penetration depth, providing direct evidence for a change in the superconducting order parameter of UTe2. Thermodynamic constraints suggest that the low temperature, high pressure superconducting state is distinct from zero pressure superconductivity as well as from the high pressure, high temperature superconducting state, raising the possibility of multicomponent superconductivity in high pressure UTe2.

Název v anglickém jazyce

Magnetic Signatures of Pressure-Induced Multicomponent Superconductivity in UTe2

Popis výsledku anglicky

The phase diagram of the heavy fermion compound UTe(2)contains multiple superconducting phases, several of which show characteristics of odd-parity pairing. We have investigated the pressure dependence of the superconducting transition in high-quality crystals of UTe(2)by tracking its signature in the magnetic susceptibility (T). A single, sharp superconducting transition is observed at low pressures &lt; 0.3 GPa. At higher pressure, a second feature emerges in (T), which is located at the lower-temperature superconducting phase boundary previously identified in specific heat measurements. This second transition anomaly in (T) can be attributed to a step change in the London penetration depth, providing direct evidence for a change in the superconducting order parameter of UTe2. Thermodynamic constraints suggest that the low temperature, high pressure superconducting state is distinct from zero pressure superconductivity as well as from the high pressure, high temperature superconducting state, raising the possibility of multicomponent superconductivity in high pressure UTe2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

134

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

236501

Kód UT WoS článku

001513537700009

EID výsledku v databázi Scopus

2-s2.0-105007932286