التفاصيل البيبلوغرافية
| العنوان: |
Magnetic Ground State Crossover in a Series of Glaserite Systems with Triangular Magnetic Lattices. |
| المؤلفون: |
Sanjeewa LD; Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET) , Clemson University , Clemson , South Carolina 29634-0973 , United States., Garlea VO, McGuire MA, McMillen CD; Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET) , Clemson University , Clemson , South Carolina 29634-0973 , United States., Kolis JW; Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET) , Clemson University , Clemson , South Carolina 29634-0973 , United States. |
| المصدر: |
Inorganic chemistry [Inorg Chem] 2019 Feb 18; Vol. 58 (4), pp. 2813-2821. Date of Electronic Publication: 2019 Feb 07. |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: American Chemical Society Country of Publication: United States NLM ID: 0366543 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-510X (Electronic) Linking ISSN: 00201669 NLM ISO Abbreviation: Inorg Chem Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: |
Original Publication: [Easton, Pa.] American Chemical Society. |
| مستخلص: |
The magnetic properties are reported for three members of the glaserite series of compounds, Na 2 BaM(VO 4 ) 2 , M = Mn, Mn 0.6 Co 0.4 , and Co. Large single crystals are grown using a high-temperature hydrothermal synthesis method. This structure type exhibits a triangular magnetic lattice in which M 2+ O 6 octahedra are interconnected with nonmagnetic (VO 4 ) 3- groups. All the structures crystallize at room temperature with rigid trigonal symmetry (space group P3̅ m1); however, at lower temperatures both Na 2 BaMn(VO 4 ) 2 and Na 2 BaMn 0.6 Co 0.4 (VO 4 ) 2 undergo a structural transition to lower symmetry (monoclinic, C2/ c). The bulk magnetic measurements indicate that Mn- and Co-structures are antiferromagnetic and ferromagnetic, respectively. Na 2 BaMn 0.6 Co 0.4 (VO 4 ) 2 does not show any long-range ordering down to 0.5 K, although a broad heat capacity anomaly near 1.2 K suggests short-range magnetic order or freezing into a spin-glass-like state related to the chemical disorder and resulting competing magnetic interactions. The magnetic structures of Na 2 BaMn(VO 4 ) 2 and Na 2 BaCo(VO 4 ) 2 were determined using neutron powder diffraction. At zero magnetic field, Na 2 BaMn(VO 4 ) 2 possesses an antiferromagnetic structure with the moments ordered in a Néel-type arrangement and aligned along the C 4 axis of the octahedra. Under applied magnetic field at 0.3 K, the evolution of the magnetic structure toward a fully polarized state is observed. Na 2 BaCo(VO 4 ) 2 represents a ferromagnetic (FM) magnetic structure with Co moments aligned parallel to the c-axis direction. The relationships between these structures and magnetic properties are discussed. |
| تواريخ الأحداث: |
Date Created: 20190208 Date Completed: 20190226 Latest Revision: 20190226 |
| رمز التحديث: |
20231215 |
| DOI: |
10.1021/acs.inorgchem.8b03418 |
| PMID: |
30730713 |
| قاعدة البيانات: |
MEDLINE |
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