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Title: The effect of cooling rate on magnetothermal properties of Fe 49Rh 51

Abstract

In this report, we have explored the effects of quenching rate on the thermal dependence of the magnetic entropy change ΔS M(T) and the magnetic field induced hysteresis loss through the antiferromagnetic (AFM)↔ferromagnetic (FM) transformation in bulk Fe 49Rh 51. Two nearly identical square-prism-shaped samples were subjected to two different temperature cooling regimes; one was rapidly quenched (FQ) in iced-water and another slow cooled (SC) to room temperature at a cooling rate of 2 K/min. The temperature of the AFM↔FM transition is similar for both samples, but the FQ sample shows much sharper temperature- and magnetic field-induced magnetization change; in addition, the total magnetization change is 14% larger. In FQ material, the magnetocaloric effect, i.e., ΔS M(T) quickly approaches saturation above 1 T and shows a large peak value at 2 T (13.9 versus 8.9 Jkg –1 K –1 in SC material), yet a larger average hysteresis loss FWHM in the temperature range coinciding with of the full-width at half-maximum of the ΔS M(T) curve.

Authors:
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [7];  [8];  [8]
  1. Universidad Autónoma de Ciudad Juárez (UACJ), Chihuahua (Mexico)
  2. National Research Centre (NRC), Moscow (Russian Federation). Kurchatov Inst. (NRCKI); Advanced Magnetic Technologies and Consulting LLC, Troitsk (Russia)
  3. San Luis Potosí Inst. of Scientific Research and Technology (Mexico)
  4. Lomonosov Moscow State Univ., Moscow (Russian Federation)
  5. Advanced Magnetic Technologies and Consulting LLC, Troitsk (Russia); Lomonosov Moscow State Univ., Moscow (Russian Federation)
  6. Universidade Estadual de Maringá (Brazil)
  7. Universidade Tecnológica Federal do Paraná (UTFPR) (Brazil)
  8. Ames Lab., and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1577343
Report Number(s):
IS-J-10096
Journal ID: ISSN 0304-8853
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 498; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Magnetocaloric; Magnetic refrigeration; Iron-rhodium alloys

Citation Formats

Sánchez-Valdés, C. F., Gimaev, R. R., López-Cruz, M., Sánchez Llamazares, J. L., Zverev, V. I., Tishin, A. M., Carvalho, A. M. G., Aguiar, D. J. M., Mudryk, Y., and Pecharsky, V. K. The effect of cooling rate on magnetothermal properties of Fe49Rh51. United States: N. p., 2019. Web. doi:10.1016/j.jmmm.2019.166130.
Sánchez-Valdés, C. F., Gimaev, R. R., López-Cruz, M., Sánchez Llamazares, J. L., Zverev, V. I., Tishin, A. M., Carvalho, A. M. G., Aguiar, D. J. M., Mudryk, Y., & Pecharsky, V. K. The effect of cooling rate on magnetothermal properties of Fe49Rh51. United States. doi:10.1016/j.jmmm.2019.166130.
Sánchez-Valdés, C. F., Gimaev, R. R., López-Cruz, M., Sánchez Llamazares, J. L., Zverev, V. I., Tishin, A. M., Carvalho, A. M. G., Aguiar, D. J. M., Mudryk, Y., and Pecharsky, V. K. Sat . "The effect of cooling rate on magnetothermal properties of Fe49Rh51". United States. doi:10.1016/j.jmmm.2019.166130.
@article{osti_1577343,
title = {The effect of cooling rate on magnetothermal properties of Fe49Rh51},
author = {Sánchez-Valdés, C. F. and Gimaev, R. R. and López-Cruz, M. and Sánchez Llamazares, J. L. and Zverev, V. I. and Tishin, A. M. and Carvalho, A. M. G. and Aguiar, D. J. M. and Mudryk, Y. and Pecharsky, V. K.},
abstractNote = {In this report, we have explored the effects of quenching rate on the thermal dependence of the magnetic entropy change ΔSM(T) and the magnetic field induced hysteresis loss through the antiferromagnetic (AFM)↔ferromagnetic (FM) transformation in bulk Fe49Rh51. Two nearly identical square-prism-shaped samples were subjected to two different temperature cooling regimes; one was rapidly quenched (FQ) in iced-water and another slow cooled (SC) to room temperature at a cooling rate of 2 K/min. The temperature of the AFM↔FM transition is similar for both samples, but the FQ sample shows much sharper temperature- and magnetic field-induced magnetization change; in addition, the total magnetization change is 14% larger. In FQ material, the magnetocaloric effect, i.e., ΔSM(T) quickly approaches saturation above 1 T and shows a large peak value at 2 T (13.9 versus 8.9 Jkg–1 K–1 in SC material), yet a larger average hysteresis loss FWHM in the temperature range coinciding with of the full-width at half-maximum of the ΔSM(T) curve.},
doi = {10.1016/j.jmmm.2019.166130},
journal = {Journal of Magnetism and Magnetic Materials},
number = ,
volume = 498,
place = {United States},
year = {2019},
month = {11}
}

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This content will become publicly available on November 9, 2020
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