Magnetic microphase inhomogeneity as a thermodynamic precursor of ground-state phase separation in weakly coupled spin-3/2 chains
Shen, L. LU ; Campillo, E. LU
; Young, E.
; Bulbucan, C.
LU
; Westerström, R.
LU
; Laver, M.
; Baker, P. J.
and Blackburn, E.
LU
(2021)
In Physical Review B
103(13).
- Abstract
- γ-CoV2O6 is a quasi-one-dimensional spin-3/2 magnet that possesses two distinct magnetic orders at low temperatures with propagation vectors k1=(½,0,0) and k2=(¼ + δh, δk, - ¼ + δl), respectively. Here we use muon spin relaxation and rotation to reveal the thermodynamics of the magnetic phase separation in this compound. In the paramagnetic (PM) region, short-range correlated spin clusters emerge at Tm ≃ 29 K at the partial expense of the PM volume. Upon further cooling, we show that these emergent clusters become spatially coherent and account for the k2 phase below TN2 = 7.5 K, while the... (More)
- γ-CoV2O6 is a quasi-one-dimensional spin-3/2 magnet that possesses two distinct magnetic orders at low temperatures with propagation vectors k1=(½,0,0) and k2=(¼ + δh, δk, - ¼ + δl), respectively. Here we use muon spin relaxation and rotation to reveal the thermodynamics of the magnetic phase separation in this compound. In the paramagnetic (PM) region, short-range correlated spin clusters emerge at Tm ≃ 29 K at the partial expense of the PM volume. Upon further cooling, we show that these emergent clusters become spatially coherent and account for the k2 phase below TN2 = 7.5 K, while the remaining PM spins are driven into the k1 state at TN1 = 6.6 K. These results stress magnetic microphase inhomogeneity as a thermodynamic precursor for the ground-state phase separation in weakly coupled spin-3/2 chains. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/20159e78-61be-4257-8617-d5cbb9be07b1
- author
- Shen, L.
LU
; Campillo, E.
LU
; Young, E.
; Bulbucan, C.
LU
; Westerström, R.
LU
; Laver, M.
; Baker, P. J.
and Blackburn, E.
LU
- organization
- publishing date
- 2021-04-14
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Low dimensional magnetism, Phase separation
- in
- Physical Review B
- volume
- 103
- issue
- 13
- article number
- 134420
- pages
- 10 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85104491095
- ISSN
- 2469-9950
- DOI
- 10.1103/PhysRevB.103.134420
- project
- Accessing high pressure and low temperature states of exotic magnetism
- language
- English
- LU publication?
- yes
- id
- 20159e78-61be-4257-8617-d5cbb9be07b1
- date added to LUP
- 2021-04-16 16:28:55
- date last changed
- 2024-12-02 03:51:59
@article{20159e78-61be-4257-8617-d5cbb9be07b1,
abstract = {{<i>γ</i>-CoV<sub>2</sub>O<sub>6</sub> is a quasi-one-dimensional spin-3/2 magnet that possesses two distinct magnetic orders at low temperatures with propagation vectors <i>k</i><sub>1</sub>=(½,0,0) and <i>k</i><sub>2</sub>=(¼ + <i>δh</i>, <i>δk</i>, - ¼ + <i>δl</i>), respectively. Here we use muon spin relaxation and rotation to reveal the thermodynamics of the magnetic phase separation in this compound. In the paramagnetic (PM) region, short-range correlated spin clusters emerge at <i>T</i><sub>m</sub> ≃ 29 K at the <i>partial</i> expense of the PM volume. Upon further cooling, we show that these emergent clusters become spatially coherent and account for the <i>k</i><sub>2</sub> phase below <i>T</i><sub>N2</sub> = 7.5 K, while the remaining PM spins are driven into the <i>k</i><sub>1</sub> state at T<sub>N1</sub> = 6.6 K. These results stress magnetic microphase inhomogeneity as a thermodynamic precursor for the ground-state phase separation in weakly coupled spin-3/2 chains.}},
author = {{Shen, L. and Campillo, E. and Young, E. and Bulbucan, C. and Westerström, R. and Laver, M. and Baker, P. J. and Blackburn, E.}},
issn = {{2469-9950}},
keywords = {{Low dimensional magnetism; Phase separation}},
language = {{eng}},
month = {{04}},
number = {{13}},
publisher = {{American Physical Society}},
series = {{Physical Review B}},
title = {{Magnetic microphase inhomogeneity as a thermodynamic precursor of ground-state phase separation in weakly coupled spin-3/2 chains}},
url = {{http://dx.doi.org/10.1103/PhysRevB.103.134420}},
doi = {{10.1103/PhysRevB.103.134420}},
volume = {{103}},
year = {{2021}},
}