Unusual magnetic behavior in Gd{sub 5}(Si{sub 1.5}Ge{sub 2.5}) and Gd{sub 5}(Si{sub 2}Ge{sub 2})
Journal Article
·
· Physical Review B
The coexistence of ferromagnetic and paramagnetic phases in the 4f-electron systems Gd{sub 5}(Si{sub 1.5}Ge{sub 2.5}) and Gd{sub 5}(Si{sub 2}Ge{sub 2}) during the magnetic-martensitic phase transition have been observed. A dc magnetic field reversibly changes both the magnetic and crystal structures of the alloys above their respective Curie temperatures. A negative imaginary component of the ac magnetic susceptibility for both alloys has been observed in the ferromagnetic state. The results are discussed in terms of indirect Ruderman-Kittel-Kasuya-Yosida and direct superexchange interactions, and anomalies of the relaxation process.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205665
- Journal Information:
- Physical Review B, Vol. 62, Issue 22; Other Information: Othernumber: PRBMDO000062000022R14625000001; R11046PRB; PBD: 1 Dec 2000; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
Similar Records
Role of Ge in bridging ferromagnetism in the giant magnetocaloric Gd{sub 5}(Ge{sub 1-x}Si{sub x}){sub 4} alloys.
New rare-earth metal germanides with bismuth substitution. Synthesis, structural variations, and magnetism of the RE[Bi{sub x}Ge{sub 1-x}]{sub 2} (RE=Y, Pr, Nd, Sm, Gd-Tm, Lu) compounds
Magnetic phase diagram of the U(Ni[sub 1[minus][ital x]]Cu[sub [ital x]])[sub 2]Ge[sub 2] system studied by ac-susceptibility measurements and neutron diffraction of polycrystalline samples
Journal Article
·
Fri Jun 15 00:00:00 EDT 2007
· Phys. Rev. Lett.
·
OSTI ID:40205665
+5 more
New rare-earth metal germanides with bismuth substitution. Synthesis, structural variations, and magnetism of the RE[Bi{sub x}Ge{sub 1-x}]{sub 2} (RE=Y, Pr, Nd, Sm, Gd-Tm, Lu) compounds
Journal Article
·
Sat Dec 15 00:00:00 EST 2012
· Journal of Solid State Chemistry
·
OSTI ID:40205665
+6 more
Magnetic phase diagram of the U(Ni[sub 1[minus][ital x]]Cu[sub [ital x]])[sub 2]Ge[sub 2] system studied by ac-susceptibility measurements and neutron diffraction of polycrystalline samples
Journal Article
·
Sun Aug 01 00:00:00 EDT 1993
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:40205665
+1 more