Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990

Elbaz, D. ; Givord, D. ; Hirosawa, S. ; Missell, F. P. ; Rossignol, M. F. ; Villas-Boas, V.

[S.l.] : American Institute of Physics (AIP)
Published 1991
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
Type of Medium:
Electronic Resource
URL:
_version_ 1798289663698403328
autor Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
autorsonst Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
book_url http://dx.doi.org/10.1063/1.347977
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLZ218646607
iqvoc_descriptor_title iqvoc_00000092:MATERIALS
issn 1089-7550
journal_name Journal of Applied Physics
materialart 1
notes The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
package_name American Institute of Physics (AIP)
publikationsjahr_anzeige 1991
publikationsjahr_facette 1991
publikationsjahr_intervall 8009:1990-1994
publikationsjahr_sort 1991
publikationsort [S.l.]
publisher American Institute of Physics (AIP)
reference 69 (1991), S. 5492-5494
search_space articles
shingle_author_1 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
shingle_author_2 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
shingle_author_3 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
shingle_author_4 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
shingle_catch_all_1 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
1089-7550
10897550
American Institute of Physics (AIP)
shingle_catch_all_2 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
1089-7550
10897550
American Institute of Physics (AIP)
shingle_catch_all_3 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
1089-7550
10897550
American Institute of Physics (AIP)
shingle_catch_all_4 Elbaz, D.
Givord, D.
Hirosawa, S.
Missell, F. P.
Rossignol, M. F.
Villas-Boas, V.
Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
The angular dependence of the coercive field Hc(cursive-theta) is discussed as a means of studying magnetization reversal in permanent magnets. We consider Hc(cursive-theta) for permanent magnets RFeB (R=Pr, Nd) for temperatures between 4.2 and 300 K. At high temperatures, it is found that Hc may increase by a factor 1.5–2 as cursive-theta increases from 0 to π/2. At low temperatures, in the Pr magnets, Hc decreases as cursive-theta increases from 0 to π/4 and then increases for larger angles. Different possible mechanisms for magnetization reversal are considered and the associated angular dependences of the coercive field in single crystals are calculated. The corresponding Hc(cursive-theta) are deduced for permanent magnets from the grain orientation distribution. Better agreement with experimental data is obtained in models involving domain-wall propagation and leading to a 1/cos cursive-theta dependence, or close to it, than in models involving coherent rotation. The behavior of the PrFeB magnets is not explained.
1089-7550
10897550
American Institute of Physics (AIP)
shingle_title_1 Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
shingle_title_2 Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
shingle_title_3 Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
shingle_title_4 Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
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source_archive AIP Digital Archive
timestamp 2024-05-06T08:04:25.237Z
titel Angular dependence of coercivity in sintered RFeB magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
titel_suche Angular dependence of coercivity in sintered RFeB magnets
35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990
topic U
uid nat_lic_papers_NLZ218646607