Effects of Anisotropic Exchange Interactions on the Magnetic Properties of a Singlet Ground State System with an External Magnetic Field

1979 ◽  
Vol 47 (2) ◽  
pp. 468-475 ◽  
Author(s):  
Keiji Osaki ◽  
Norikiyo Uryû
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
External Magnetic Field ◽  
Ground State ◽  
Exchange Interactions ◽  
State System ◽  
Singlet Ground State ◽  
Anisotropic Exchange

THE GROUND-STATE PHASE DIAGRAMS OF THE SPIN-2 ISING MODEL

2007 ◽  
Vol 21 (31) ◽  
pp. 5265-5274 ◽  
Author(s):  
AHMET ERDİNÇ
Keyword(s):  
Magnetic Field ◽  
Ising Model ◽  
External Magnetic Field ◽  
Phase Diagrams ◽  
Crystal Field ◽  
Ground State ◽  
Exchange Interactions ◽  
Nearest Neighbors ◽  
Biquadratic Exchange ◽  
Model Hamiltonian

The ground-state phase diagrams are obtained for the spin-2 Ising model Hamiltonian with bilinear and biquadratic exchange interactions and a single-ion crystal field. The interactions are assumed to be only between nearest-neighbors. Obtained phase diagrams are presented in the (Δ,J), (K,J), (Δ/J,K/J), (Δ/|J|,K/|J|), (Δ/|K|,J/|K|), (H/J,Δ/J), (H/|J|,Δ/|J|), (H/J,K/J), and (H/|J|,K/|J|) planes where J, K, Δ, and H are the bilinear, biquadratic exchange interactions, the single-ion crystal field, and the external magnetic field, respectively. The influence of the external magnetic field on the spin configurations is investigated.

An experimental study on the magnetic properties of the singlet ground-state system in Cu(NO3)2.2

Physica B+C ◽  
1978 ◽  
Vol 93 (1) ◽  
pp. 99-113 ◽  
Author(s):  
K.M. Diederix ◽  
J.P. Groen ◽  
L.S.J.M. Henkens ◽  
T.O. Klaassen ◽  
N.J. Poulis
Keyword(s):  
Experimental Study ◽  
Magnetic Properties ◽  
Ground State ◽  
State System ◽  
Singlet Ground State

scholarly journals Thermally populated versus field-induced triplon bound states in the Shastry-Sutherland lattice SrCu2(BO3)2

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Dirk Wulferding ◽  
Youngsu Choi ◽  
Seungyeol Lee ◽  
Mikhail A. Prosnikov ◽  
Yann Gallais ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Raman Spectroscopy ◽  
External Magnetic Field ◽  
Ground State ◽  
High Field ◽  
Bound States ◽  
Thermal Fluctuations ◽  
Low Energy ◽  
Singlet Ground State ◽  
The Magnetic Field

AbstractThe Shastry–Sutherland compound SrCu2(BO3)2 constituting orthogonally coupled dimers harbors an S = 0 singlet ground state. The confluence of strong interdimer interaction and frustration engenders a spectrum of low-energy excitations including localized triplons as well as singlet and triplet bound states. Their dynamics are controlled by an external magnetic field and temperature. Here, we employ high-field Raman spectroscopy to map the field and temperature evolution of such bosonic composite quasiparticles on approaching the 1/8 magnetization plateau. Our study unveils that the magnetic field and thermal fluctuations show remarkably similar effects in melting the singlet bound states, but are disparate in their effects on the fine spectral shapes. This, together with the anti-crossing of two singlet bound states in the intermediate field B = 10 − 16 T, is discussed in terms of the correlated dynamics of frustrated, interacting bosons.

An experimental study on the magnetic properties of the singlet ground-state system in Cu(NO3)2.2H2O

Physica B+C ◽  
1978 ◽  
Vol 94 (1) ◽  
pp. 9-26 ◽  
Author(s):  
K.M. Diederix ◽  
J.P. Groen ◽  
L.S.J.M. Henkens ◽  
T.O. Klaassen ◽  
N.J. Poulis
Keyword(s):  
Experimental Study ◽  
Magnetic Properties ◽  
Ground State ◽  
State System ◽  
Singlet Ground State
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