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Title: Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu 2Ga 2B

Abstract

In search of novel, improved materials for magnetic data storage and spintronic devices, compounds that allow a tailoring of magnetic domain shapes and sizes are essential. Good candidates are materials with intrinsic anisotropies or competing interactions, as they are prone to host various domain phases that can be easily and precisely selected by external tuning parameters such as temperature and magnetic field. Here, we utilize vector magnetic fields to visualize directly the magnetic anisotropy in the uniaxial ferromagnet CeRu 2Ga 2B. We demonstrate a feasible control both globally and locally of domain shapes and sizes by the external field as well as a smooth transition from single stripe to bubble domains, which opens the door to future applications based on magnetic domain tailoring.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [4];  [1];  [5];  [5];  [2];  [2];  [6];  [2];  [2];  [2];  [1]
  1. Inst. for Basic Science, Pohang (Korea, Republic of). Center for Artificial Low Dimensional Electronic Systems; Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); RIKEN Center for Emergent Matter Science (CEMS), Wako (Japan)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  5. Inst. for Basic Science, Pohang (Korea, Republic of). Center for Artificial Low Dimensional Electronic Systems; Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Chemistry
  6. National High Magnetic Field Lab., Tallahassee, FL (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Inst. for Basic Science (IBS) (Korea, Republic of)
Contributing Org.:
RIKEN Center for Emergent Matter Science (CEMS), Wako (Japan); Argonne National Lab. (ANL), Argonne, IL (United States); National High Magnetic Field Lab., Tallahassee, FL (United States)
OSTI Identifier:
1360698
Alternate Identifier(s):
OSTI ID: 1361656
Report Number(s):
LA-UR-16-21622
Journal ID: ISSN 2045-2322
Grant/Contract Number:
AC52-06NA25396; IBS-R014-D1; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Ferromagnetism; Magnetic properties and materials

Citation Formats

Wulferding, Dirk, Kim, Hoon, Yang, Ilkyu, Jeong, J., Barros, K., Kato, Y., Martin, I., Ayala-Valenzuela, O. E., Lee, Minkyung, Choi, Hee Cheul, Ronning, F., Civale, L., Baumbach, R. E., Bauer, E. D., Thompson, J. D., Movshovich, R., and Kim, Jeehoon. Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu2Ga2B. United States: N. p., 2017. Web. doi:10.1038/srep46296.
Wulferding, Dirk, Kim, Hoon, Yang, Ilkyu, Jeong, J., Barros, K., Kato, Y., Martin, I., Ayala-Valenzuela, O. E., Lee, Minkyung, Choi, Hee Cheul, Ronning, F., Civale, L., Baumbach, R. E., Bauer, E. D., Thompson, J. D., Movshovich, R., & Kim, Jeehoon. Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu2Ga2B. United States. doi:10.1038/srep46296.
Wulferding, Dirk, Kim, Hoon, Yang, Ilkyu, Jeong, J., Barros, K., Kato, Y., Martin, I., Ayala-Valenzuela, O. E., Lee, Minkyung, Choi, Hee Cheul, Ronning, F., Civale, L., Baumbach, R. E., Bauer, E. D., Thompson, J. D., Movshovich, R., and Kim, Jeehoon. Mon . "Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu2Ga2B". United States. doi:10.1038/srep46296. https://www.osti.gov/servlets/purl/1360698.
@article{osti_1360698,
title = {Domain engineering of the metastable domains in the 4f-uniaxial-ferromagnet CeRu2Ga2B},
author = {Wulferding, Dirk and Kim, Hoon and Yang, Ilkyu and Jeong, J. and Barros, K. and Kato, Y. and Martin, I. and Ayala-Valenzuela, O. E. and Lee, Minkyung and Choi, Hee Cheul and Ronning, F. and Civale, L. and Baumbach, R. E. and Bauer, E. D. and Thompson, J. D. and Movshovich, R. and Kim, Jeehoon},
abstractNote = {In search of novel, improved materials for magnetic data storage and spintronic devices, compounds that allow a tailoring of magnetic domain shapes and sizes are essential. Good candidates are materials with intrinsic anisotropies or competing interactions, as they are prone to host various domain phases that can be easily and precisely selected by external tuning parameters such as temperature and magnetic field. Here, we utilize vector magnetic fields to visualize directly the magnetic anisotropy in the uniaxial ferromagnet CeRu2Ga2B. We demonstrate a feasible control both globally and locally of domain shapes and sizes by the external field as well as a smooth transition from single stripe to bubble domains, which opens the door to future applications based on magnetic domain tailoring.},
doi = {10.1038/srep46296},
journal = {Scientific Reports},
number = ,
volume = 7,
place = {United States},
year = {Mon Apr 10 00:00:00 EDT 2017},
month = {Mon Apr 10 00:00:00 EDT 2017}
}

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  • In search of novel, improved materials for magnetic data storage and spintronic devices, compounds that allow a tailoring of magnetic domain shapes and sizes are essential. Good candidates are materials with intrinsic anisotropies or competing interactions, as they are prone to host various domain phases that can be easily and precisely selected by external tuning parameters such as temperature and magnetic field. Here, we utilize vector magnetic fields to visualize directly the magnetic anisotropy in the uniaxial ferromagnet CeRu 2Ga 2B. We demonstrate a feasible control both globally and locally of domain shapes and sizes by the external field asmore » well as a smooth transition from single stripe to bubble domains, which opens the door to future applications based on magnetic domain tailoring.« less
  • Magnetostriction measurements have been performed on a tetragonal Y{sub 2}Fe{sub 14}B single crystal along all the major symmetry directions at temperatures ranging from 10 to 400 K and applied magnetic fields up to 14 T. The standard irreducible magnetostrictive modes for tetragonal symmetry, {epsilon}{sup {alpha},1}({bold c}), {epsilon}{sup {alpha},2}({bold c}), {epsilon}{sup {alpha},1}({bold a}), {epsilon}{sup {alpha},2}({bold a}), {epsilon}{sub 1}{sup {gamma}}({bold a}), and {epsilon}{sup {epsilon}}({bold d}), have been obtained from the measurements. Their thermal and applied magnetic-field dependence are discussed. The isotropic volume striction modes have been observed to be one order of magnitude higher than the anisotropic ones. {copyright} {ital 1997 Americanmore » Institute of Physics.}« less
  • CeRu/sub 2/ and CeCo/sub 2/ have been considered to have tetravalent Ce because of their superconductivity, collapsed volume, and lack of magnetic moments. Resonant photoemission studies show these compounds to be mixed valent, suggesting the need to reexamine the mechanism of their superconductivity.
  • We present the resistivity and ac susceptibility of CeRu{sub 2}Ge {sub 2} at pressures p up to 130thinspthinspkbar. Pressure transforms the system from a ferromagnet into a nonordering Fermi liquid (FL). The suppression of magnetic order at p{sub c}=67 kbar is accompanied by non-Fermi liquid (NFL) behavior. By comparing our results to isoelectronic CeRu{sub 2}( Ge{sub 1{minus}x}Si {sub x}){sub 2} we derive a unified hybridization J phase diagram for the entire material class. The phase diagram is characterized by the FL and Kondo energy scales T{sub FL} and T{sub K} , with the NFL behavior appearing at T{sub FL}=0 Kmore » , while T{sub K} remains finite and a smoothly increasing function of J . {copyright} {ital 1999} {ital The American Physical Society}« less
  • We present the resistivity and ac susceptibility of CeRu[sub 2]Ge [sub 2] at pressures p up to 130thinspthinspkbar. Pressure transforms the system from a ferromagnet into a nonordering Fermi liquid (FL). The suppression of magnetic order at p[sub c]=67 kbar is accompanied by non-Fermi liquid (NFL) behavior. By comparing our results to isoelectronic CeRu[sub 2]( Ge[sub 1[minus]x]Si [sub x])[sub 2] we derive a unified hybridization J phase diagram for the entire material class. The phase diagram is characterized by the FL and Kondo energy scales T[sub FL] and T[sub K] , with the NFL behavior appearing at T[sub FL]=0 Kmore » , while T[sub K] remains finite and a smoothly increasing function of J . [copyright] [ital 1999] [ital The American Physical Society]« less