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Possible candidate ...
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Boya, K.Indian Inst Technol Tirupati, Dept Phys, Tirupati 517506, India.;Govt Polytech, Srikakulam 532005, Andhra Pradesh, India.
(författare)
Possible candidate for the realization of the floating phase in the S=5/2 frustrated spin-chain model : K3Fe(MoO4)2(Mo2O7 )
- Artikel/kapitelEngelska2024
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American Physical Society,2024
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LIBRIS-ID:oai:DiVA.org:uu-530605
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-530605URI
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https://doi.org/10.1103/PhysRevB.109.155130DOI
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Språk:engelska
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Sammanfattning på:engelska
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The frustrated spin-chain (FSC) systems exhibit exotic ground states and distinct quantum phase transitions. The ?=1/2 FSC is known to exhibit the Kosterlitz-Thouless transition from a commensurate gapless phase to a fully dimerized gapped phase upon the ratio of next-nearest-neighbor to nearest-neighbor coupling (?=?2/?1) being tuned. On the other hand, the ?=5/2 FSC system is known to show transitions from a commensurate gapless phase to partially dimerized and incommensurate floating phases [Chepiga, Affleck, and Mila, Phys. Rev. B 105, 174402 (2022)]. While a large region of the floating phase has been theoretically predicted for the ?=5/2 FSC model when ?>0.43, it is yet to be explored experimentally. Here, we have investigated a compound K3Fe(MoO4)2(Mo2O7), having well-separated ?=5/2 FSCs. The electronic structure calculations show that the ?=?2/?1 is close to 0.9, being similar to another FSC compound Bi3FeMo2O12 (?≈1.1). No magnetic long-range order is found down to 0.09 K, despite the relatively sizable Curie-Weiss temperature ???=−18K. The magnetic heat capacity shows the power-law behavior, indicating that the compound exhibits gapless excitations. Based on the experimental results and the theoretical calculations employed by density functional theory, we argue that the titled system is a possible candidate for exhibiting the floating phase.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Nam, K.Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea.;Seoul Natl Univ, Inst Appl Phys, Seoul 151747, South Korea.
(författare)
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Kargeti, K.Bennett Univ, Dept Phys, Greater Noida 201310, Uttar Pradesh, India.
(författare)
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Ershadrad, SoheilUppsala universitet,Materialteori(Swepub:uu)soher256
(författare)
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Kumar, R.Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Mumbai 400005, India.
(författare)
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Panda, S. K.Bennett Univ, Dept Phys, Greater Noida 201310, Uttar Pradesh, India.
(författare)
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Sanyal, BiplabUppsala universitet,Materialteori(Swepub:uu)bisan676
(författare)
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Manna, A. K.Indian Inst Technol Tirupati, Dept Chem, Tirupati 517619, India.
(författare)
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Paulose, P. L.Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Mumbai 400005, India.
(författare)
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Kim, Kee HoonSeoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea.;Seoul Natl Univ, Inst Appl Phys, Seoul 151747, South Korea.
(författare)
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Koteswararao, B.Indian Inst Technol Tirupati, Dept Phys, Tirupati 517506, India.
(författare)
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Indian Inst Technol Tirupati, Dept Phys, Tirupati 517506, India.;Govt Polytech, Srikakulam 532005, Andhra Pradesh, India.Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea.;Seoul Natl Univ, Inst Appl Phys, Seoul 151747, South Korea.
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Sammanhörande titlar
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Ingår i:Physical Review B: American Physical Society109:152469-99502469-9969
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Boya, K.
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Nam, K.
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Kargeti, K.
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Ershadrad, Sohei ...
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Kumar, R.
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Panda, S. K.
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visa fler...
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Sanyal, Biplab
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Manna, A. K.
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Paulose, P. L.
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Kim, Kee Hoon
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Koteswararao, B.
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