Interdependence of Magnetism and Superconductivity in the Borocarbide TmNi2B2C
K. Nørgaard, M. R. Eskildsen, N. H. Andersen, J. Jensen, P. Hedegård, S. N. Klausen, P. C. Canfield
DOI 10.1103/PhysRevLett.84.4982 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We have discovered a new antiferromagnetic phase in TmNi2B2C by neutron diffraction. The ordering vector is QA=(0.48,0,0) and the phase appears above a critical in-plane magnetic field of 0.9 T. The field was applied in order to test the assumption that the zero-field magnetic structure at QF=(0.094,0.094,0) would change into a c-axis ferromagnet if superconductivity were destroyed. We present theoretical calculations which show that two effects are important: a suppression of the ferromagnetic component of the RKKY exchange interaction in the superconducting phase and a reduction of the superconducting condensation energy due to the periodic modulation of the moments at QA.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| TmNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11 | Pressure not reported | unknown |
Similar papers
Anisotropic magnetoresistance of single-crystal HoNi2B2C and the interplay of magnetic and superconducting order
similarity 0.96K. D. D. Rathnayaka et al.
Source status unknown — claims are unverified
Possibility of a π Josephson junction and switch in superconductors with spiral magnetic order
similarity 0.94Miodrag L. Kulić & Igor M. Kulić
Source status unknown — claims are unverified
Peculiarities of the superconducting gaps and the electron-boson interaction in TmNi2B2C as seen by point-contact spectroscopy
similarity 0.94Yu. G. Naidyuk et al.
Source status unknown — claims are unverified
Magnetism and superconductivity in Y1−xTbxNi2B2C single crystals
similarity 0.94B. K. Cho et al.
Source status unknown — claims are unverified
Structural, superconducting, and magnetic properties of YNi2B2C and ErNi2B2C
similarity 0.93C. Godart et al.
Source status unknown — claims are unverified
Effect of Tb substitution for Dy on superconductivity and magnetism in Dy1−xTbxNi2B2C
similarity 0.92Jae-Hyuk Choi et al.
Source status unknown — claims are unverified