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Title: Direct Measurement of the Magnetocaloric Effect in La(Fe,Si,Co) 13 Compounds in Pulsed Magnetic Fields

We report on magnetization, magnetostriction, and magnetocaloric-effect measurements of polycrystal-line LaFe 11.74Co 0.13Si 1.13 and LaFe 11.21Co 0.65Si 1.11 performed in both pulsed and static magnetic fields. Although the two compounds behave rather differently at low fields (~ 5 T), they show quite similar values of the magnetocaloric effect, namely a temperature increases of about 20 K at high fields (50-60 T). The magnetostriction and magnetization also reach very similar values here. We are able to quantify the magnetoelastic coupling and, based on that, apply the Bean-Rodbell criterion distinguishing first- and second-order transitions.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5] ;  [6] ;  [7] ;  [1] ;  [3]
  1. Helmholtz-Zentrum Dresden (HZB), (Germany). Hochfeld-Magnetlabor Dresden (HLD-EMFL); Technische Univ., Dresden (Germany). Inst. fur Festkorperphysik
  2. Helmholtz-Zentrum Dresden (HZB), (Germany). Hochfeld-Magnetlabor Dresden (HLD-EMFL)
  3. Technische Univ., Darmstadt (Germany). Inst. fur Materialwissenschaft
  4. Technische Univ., Darmstadt (Germany). Inst. fur Materialwissenschaft; National Univ. of Science and Technology (MISiS), Moscow (Russia)
  5. Leibniz Inst. for Solid State and Materials Research (IFW), Dresden (Germany). Inst. for Complex Materials
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  7. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
Publication Date:
Report Number(s):
BNL-114107-2017-JA
Journal ID: ISSN 2331-7019; 137615; TRN: US1702690
Grant/Contract Number:
AC02-06CH11357; NA0001974; FG02-99ER45775; SC0012704
Type:
Accepted Manuscript
Journal Name:
Physical Review Applied
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2331-7019
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Magnetostriction; Magnetocaloric effect; 36 MATERIALS SCIENCE
OSTI Identifier:
1378094
Alternate Identifier(s):
OSTI ID: 1373319; OSTI ID: 1392211