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25 April 2024 |
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Quantum phase transition in quasi-one-dimensional BaRu6O12 | | Z Q Mao
; T He
; M M Rosario
; K D Nelson
; D Okuno
; B Uel
; I G Deac
; P Schiffer
; Y Liu
; R J Cava
; | | Date: |
9 May 2003 | | Journal: | Phys Rev Lett, 90 (18), 186601 | | Abstract: | We report the first systematic study of the electrical transport and magnetic properties of BaRu6O12, which has a quasi-one-dimensional (quasi-1D) hollandite structure. We show that BaRu6O12 is quasi-1D electronically as well. Its physical properties were found to be extremely sensitive to disorder. Furthermore, a transition from being metallic with a resistance drop around 2 K to being weakly insulating as the applied magnetic field was increased was also found. We propose that these two features are related to the possible presence of a quantum phase transition in this material system. | | Source: | PubMed, pmid12786033 | | Services: | Forum | Review | Favorites | |
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