|
1
|
Sharma N, Mbarki M, Zhang Y, Huq A, Fokwa BPT. Structural-Distortion-Driven Magnetic Transformation from Ferro- to Ferrimagnetic Iron Chains in B 6 -based Nb 6 FeIr 6 B 8. Angew Chem Int Ed Engl 2018; 57:10323-10327. [PMID: 29892987 DOI: 10.1002/anie.201804841] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Indexed: 11/09/2022]
Abstract
We report on a structural distortion of kinetically stable B6 -based ferromagnetic Nb6 FeIr6 B8 that induces an unprecedented transformation of a ferromagnetic Fe chain into two ferrimagnetic Fe chains through superstructure formation. Density functional theory calculations showed that the ferromagnetic Fe-Fe intrachain interactions found in the undistorted structure become ferrimagnetic in the distorted superstructure, mainly because the two independent iron atoms building each chain interact antiferromagnetically and carry different magnetic moments. High-temperature SQUID magnetometry confirmed ferrimagnetic ordering at 525 K with a high and negative Weiss constant of -972 K indicating the presence of strong antiferromagnetic interactions, as predicted. This finding paves the way for the development of low-dimensional magnetic intermetallic systems based on Heisenberg ferrimagnetic chains, which have previously been studied only in molecular-based compounds.
Collapse
Affiliation(s)
- Neetika Sharma
- Department of Chemistry, University of California, Riverside, Riverside, CA, 92521, USA
| | - Mohammed Mbarki
- Institute of Inorganic Chemistry, RWTH Aachen University, 52074, Aachen, Germany
| | - Yuemei Zhang
- Department of Chemistry, University of California, Riverside, Riverside, CA, 92521, USA
| | - Ashfia Huq
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Boniface P T Fokwa
- Department of Chemistry, University of California, Riverside, Riverside, CA, 92521, USA
| |
Collapse
|
|
2
|
Sharma N, Mbarki M, Zhang Y, Huq A, Fokwa BPT. Structural‐Distortion‐Driven Magnetic Transformation from Ferro‐ to Ferrimagnetic Iron Chains in B
6
‐based Nb
6
FeIr
6
B
8. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Neetika Sharma
- Department of Chemistry University of California, Riverside Riverside CA 92521 USA
| | - Mohammed Mbarki
- Institute of Inorganic Chemistry RWTH Aachen University 52074 Aachen Germany
| | - Yuemei Zhang
- Department of Chemistry University of California, Riverside Riverside CA 92521 USA
| | - Ashfia Huq
- Chemical and Engineering Materials Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Boniface P. T. Fokwa
- Department of Chemistry University of California, Riverside Riverside CA 92521 USA
| |
Collapse
|
|
3
|
Zheng Q, Kohout M, Gumeniuk R, Abramchuk N, Borrmann H, Prots Y, Burkhardt U, Schnelle W, Akselrud L, Gu H, Leithe-Jasper A, Grin Y. TM7TM′6B8 (TM = Ta, Nb; TM′ = Ru, Rh, Ir): New Compounds with [B6] Ring Polyanions. Inorg Chem 2012; 51:7472-83. [DOI: 10.1021/ic201978n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiang Zheng
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
- State Key Laboratory of High
Performance Ceramics and Superfine Microstructures, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Miroslav Kohout
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Roman Gumeniuk
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Nikolay Abramchuk
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Ulrich Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Lev Akselrud
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Hui Gu
- State Key Laboratory of High
Performance Ceramics and Superfine Microstructures, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Andreas Leithe-Jasper
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Str. 40, 01187 Dresden, Germany
| |
Collapse
|
|
4
|
Prasad A, Hossain Z, Jeevan HS, Geibel C. YbNiB(4): a Kondo lattice with low-dimensional antiferromagnetic fluctuations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:206003. [PMID: 21825540 DOI: 10.1088/0953-8984/21/20/206003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have grown single crystals of YbNiB(4) using a Ni(60)B(40) flux and determined the magnetic properties of this compound by means of magnetic susceptibility, specific heat and electrical resistivity measurement. Yb ions in YbNiB(4) are in a trivalent state and present a transition from a paramagnetic state to an antiferromagnetic (AF) state at T(N1) = 5.4 K and a further transition towards a second AF state at T(N2) = 4.0 K. Kondo type behavior in the resistivity and an enhanced Sommerfeld coefficient γ = 100 mJ mol(-1) K(-2) provide evidence for a significant Kondo interaction. A broad maximum in χ(T) at around 8 K, well above T(N1), suggests low-dimensional antiferromagnetic correlations. Both mechanisms lead to strong fluctuation in an extended temperature range above T(N1), up to the characteristic energy of this system, which was estimated to be T(4f) = 16 K from an analysis of the entropy.
Collapse
Affiliation(s)
- A Prasad
- Department of Physics, Indian Institute of Technology, Kanpur 208016, India
| | | | | | | |
Collapse
|
|
5
|
Eriksson O, Johansson B, Brooks MS, Skriver HL, Sjöström J. Itinerant magnetism in CeRh3B2. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:5270-5273. [PMID: 9992548 DOI: 10.1103/physrevb.40.5270] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
|
6
|
Hsu SW, Ku HC. Ferromagnetic enhancement in the hexagonal Ce(Rh1-xIrx)3B2 system. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:2944-2947. [PMID: 9946632 DOI: 10.1103/physrevb.38.2944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
|
7
|
Umarji AM, Dhar SK, Malik SK, Vijayaraghavan R. Evolution of magnetism from mixed-valent CeIr3B2 to trivalent CeIr3Si2. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 36:8929-8932. [PMID: 9942749 DOI: 10.1103/physrevb.36.8929] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|