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Title: Irreversibility in Rolled Tantalum

Abstract

We investigated the magnetic and thermodynamic properties of rolled tantalum in superconducting state. The magnetization shows a crossover from type I to type II superconductivity as the magnetic field increases beyond the thermodynamic critical field. In both regimes, the sample shows a substantial irreversibility of the magnetization which we attribute to the pinning of the entities that characterize the intermediate and mixed states. Magnetic relaxation data taken in the intermediate state shows an important contribution of the quantum tunnelling below 3.7 K.

Authors:
 [1];  [2]
  1. National Institute of Materials Physics (Romania)
  2. United States Naval Academy, Department of Physics (United States)
Publication Date:
OSTI Identifier:
22773991
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 7; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRITICAL FIELD; INTERMEDIATE STATE; MAGNETIZATION; MIXED STATE; MIXED STATES; TANTALUM; THERMODYNAMIC PROPERTIES; TUNNEL EFFECT; TYPE-I SUPERCONDUCTORS; TYPE-II SUPERCONDUCTORS

Citation Formats

Sandu, V., E-mail: vsandu@infim.ro, and Cimpoiasu, Elena. Irreversibility in Rolled Tantalum. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4433-6.
Sandu, V., E-mail: vsandu@infim.ro, & Cimpoiasu, Elena. Irreversibility in Rolled Tantalum. United States. doi:10.1007/S10948-017-4433-6.
Sandu, V., E-mail: vsandu@infim.ro, and Cimpoiasu, Elena. Sun . "Irreversibility in Rolled Tantalum". United States. doi:10.1007/S10948-017-4433-6.
@article{osti_22773991,
title = {Irreversibility in Rolled Tantalum},
author = {Sandu, V., E-mail: vsandu@infim.ro and Cimpoiasu, Elena},
abstractNote = {We investigated the magnetic and thermodynamic properties of rolled tantalum in superconducting state. The magnetization shows a crossover from type I to type II superconductivity as the magnetic field increases beyond the thermodynamic critical field. In both regimes, the sample shows a substantial irreversibility of the magnetization which we attribute to the pinning of the entities that characterize the intermediate and mixed states. Magnetic relaxation data taken in the intermediate state shows an important contribution of the quantum tunnelling below 3.7 K.},
doi = {10.1007/S10948-017-4433-6},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 7,
volume = 31,
place = {United States},
year = {2018},
month = {7}
}