|
We review studies of the interactions between magnetic order and the flux line lattice (FLL) in the (RE)Ni{sub 2}B{sub 2}C intermetallic borocarbides for (RE)=Tm and Er using small angle neutron scattering (SANS) and magneto-transport. For (RE)=Tm the magnetic order and the FLL assume a common symmetry, sharing a phase transition at {approx}2 kOe, despite an order of magnitude difference in periodicity. For (RE)=Er, the penetration depth {lambda} and the coherence length {xi}, both of which are derived from the FLL form factor, are modified near T{sub N}=6 K by a theoretically predicted weakly divergent pairbreaking. Finally, below 2.3 K, (RE)=Er shows a coexistence of weak ferromagnetism and superconductivity. This state reveals a highly disordered FLL and a striking increase in the critical current, both arising from the strong ferromagnetic pairbreaking. (c) 2000 American Institute of Physics.
|
| Authors: |
Gammel, P. L. [Bell Laboratories, Lucent Technologies, 700 Mountain Avenue, Murray Hill, New Jersey 07974 (United States)];
Lopez, D. [Bell Laboratories, Lucent Technologies, 700 Mountain Avenue, Murray Hill, New Jersey 07974 (United States)];
Bishop, D. J. [Bell Laboratories, Lucent Technologies, 700 Mountain Avenue, Murray Hill, New Jersey 07974 (United States)];
Eskildsen, M. R. [Risoe National Laboratories, DK-4000, Roskilde, (Denmark)];
Andersen, N. H. [Risoe National Laboratories, DK-4000, Roskilde, (Denmark)];
Mortensen, K. [Risoe National Laboratories, DK-4000, Roskilde, (Denmark)];
Fisher, I. R. [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)];
Cheon, K. O. [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)];
Canfield, P. C. [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)]
|
| Publication Date: | 2000 May 01 |
|---|
| OSTI Identifier: | 20216241 |
|---|
| Resource Type: | Journal Article |
|---|
| Resource Relation: | Journal Name: Journal of Applied Physics; Journal Volume: 87; Journal Issue: 9; Other Information: PBD: 1 May 2000 |
|---|
| Country of Publication: | United States |
|---|
| Language: | English |
|---|
| Format: | Size: page(s) 5544-5548 |
|---|
| Other Number(s): | Journal ID: ISSN 0021-8979; JAPIAU; TRN: US00Z1240 |
|---|
| Subject: | 36 MATERIALS SCIENCE; THULIUM COMPOUNDS; ERBIUM COMPOUNDS; NICKEL COMPOUNDS; BORIDES; CARBIDES; MAGNETIC FLUX; SUPERCONDUCTORS; INTERMETALLIC COMPOUNDS; PENETRATION DEPTH; NEUTRON DIFFRACTION |
|---|
| Update Date: | 2010 Jun 03 |
|---|
Top |
|
