Angular dependence of metamagnetic transitions in HoNi{sub 2}B{sub 2}C
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
- National High Magnetic Field Laboratory--Pulse Facility, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106 (United States)
- Department of Physics, Texas AM University, College Station, Texas 77843 (United States)
Detailed measurements of M(2 K, H, {theta}) of HoNi{sub 2}B{sub 2}C, where {theta} is the angle that the applied field H makes with the [110] axis while remaining perpendicular to the crystallographic c axis, reveal three metamagnetic transitions with angular dependences H{sub c1}=(4.1{plus_minus}0.1 kG)/cos({theta}), H{sub c2}=8.4{plus_minus}0.2 kG/cos({phi}), and H{sub c3}=(6.6{plus_minus}0.2 kG)/sin({phi}), where {phi}={theta}{minus}45 is the angle from the [100] axis. The high-field saturated moment, M{sub sat}{approx}10{mu}{sub B}cos{theta} is consistent with the local moments being confined to the [110] direction. The locally saturated moments for fields between H{sub ci} (i=1,2,3) also manifest angular dependences that are consistent with combinations of local moments along [110] axes. Analysis of these data lead us to infer that the net distribution of moments is ({up_arrow}{down_arrow}{up_arrow}{down_arrow}{up_arrow}{down_arrow}) for H{lt}H{sub c1}, ({up_arrow}{up_arrow}{down_arrow}{up_arrow}{up_arrow}{down_arrow}) for H{sub c1}{lt}H{lt}H{sub c2}, ({up_arrow}{up_arrow}{r_arrow}{up_arrow}{up_arrow}{r_arrow}) for H{sub c2}{lt}H{lt}H{sub c3}, and ({up_arrow}{up_arrow}{up_arrow}{up_arrow}{up_arrow}{up_arrow}) for H{gt}H{sub c3}. {copyright} {ital 1997} {ital The American Physical Society}
- Research Organization:
- Ames National Laboratory
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 474660
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 2 Vol. 55; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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