Takehiro Saito

1H-NMR Study on the Magnetic Order in the Mixture of Two Spin Gap Systems (CH3)2CHNH3CuCl3 and (CH3)2CHNH3CuBr3

The antiferromagnetic ordering in the solid-solution of the two spin-gap systems (CH 3 ) 2 CHNH 3 CuCl 3 and (CH 3 ) 2 CHNH 3 CuBr 3 has been investigated by 1 H-NMR. The sample with the Cl-content...

Muon spin relaxation detection of the soft mode toward the exotic magnetic ground state in the bond-disordered quantum spin system IPA-Cu(Cl0.35Br0.65)3

The spin-gap system with a bond-disorder

63/65Cu- and 35/37Cl-NMR studies of triplet localization in the quantum spin system NH4CuCl3

{({\text{CH}}_{3})}_{2}{\text{CHNH}}_{3}\text{-Cu}{({\text{Cl}}_{x}{\text{Br}}_{1\ensuremath{-}x})}_{3}

1H-NMR study of the random bond effect in the quantum spin system (CH3 )2CHNH3Cu (ClxBr1- x)3

is reported by experiments on macroscopic quantities of the uniform susceptibility and the specific heat to show a magnetic order at low temperatures (when the value of

Cl-NMR study on field-induced magnetic order in quasi-one-dimensional antiferromagnet (CH3)2CHNH3CuCl3

x

Magnetic phase diagram of the S = 1/2 antiferromagnetic ladder (CH3)2CHNH3CuCl3

is within the limited region between 0.44 and 0.87) and otherwise a gapped behavior. We have investigated microscopically the ground state of the sample with

High-Field Magnetic Torque Measurement in the Spin Gap System (CH3)2CHNH3CuCl3

x=0.35

μSR study on the ground state of bond-disordered spin gap system (CH3)2CHNH3Cu(Cl1−xBrx)3 (x=0.95, 0.88)

by muon spin relaxation

μSR-detected soft mode toward a possible phase transition in a disordered spin-gap system, (CH3)2CHNH3–Cu(ClxBr1−x)3

(\ensuremath{\mu}\text{SR})

NMR study of the vortex slush phase in organic superconductor κ-(BEDT-TTF) 2 Cu(NCS) 2

to observe that the frequency spectrum of the spin fluctuation tends to concentrate around zero energy as lowering temperatures. This behavior was interpreted as the soft mode toward the possible magnetic phase transition at absolute zero.