outline fÔ %? fÛphys.kj.yamagata-u.ac.jp/frontier2014/kimura_140130s.pdffbs and dept. physics,...

Shin-ichiKIMU

RA [kimura@

fbs.osaka-u.ac.jp] FBSand D

ept. Physics, Osaka U

niversityU

VSOR, IM

S

UVSO

R

20140130

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Outline

•••

•••

ARPES•

ARPES•

1•

••+

••

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

9.1110

-31kg

Designed by T. Ito

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

1900

Ev

“”

p=

mc v

cc

cm k

m pv

mE

22

2 12

22

2 mc

(E)

(v), (p),

(k)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

mf

“”

(E)

mf >>

mc f

ff

m km p

vm

E2

22 1

22

22

(v), (p),

(k)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

4f

Ce

3+: (Xe) 4f 1

Ce

4+: (Xe) 4f 0

Yb2+: (X

e) 4f 14/ (Lu3+) 4fh 0

Yb3+: (X

e) 4f 13/ (Lu3+) 4fh 1

4f

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

/

2003

1964

(E)

(p,k)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

(E)

(p,k)

1001000

1977

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Outline

•••

•••

ARPES•

ARPES•

1•

••+

••Shin-ichiKIM

URA [kim

[email protected]] FBS

and Dept. Physics, O

saka University

UVSO

R, IMS

: h0

: I0

h0 ,IR

IR / I0

h0 , IT

IT / I0

:EK

: I(h0 )

:h1

(): I(h

0 )

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

X

1905

A. Einstein

Ek =

hE

BE

k :h

:E

B ::(

-)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

xy

h

V0

==(

) /

e-

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

LiFeAshhh=18,39eV

hhh=26eV

hhh=35eV

hhh=23eV

Calculated Ferm

i surface in Brillouin zone

T. Hajiri, SK et al., PRB

85, 094509 (2012).

ddxy

dddxzzxz/yz

dddxzxz/yz

ddxy

dddxyyyyyxyyyy/x2x2x-2-y2

dddxyyyyyyxyyyy/x2x2x-2-y2

eV dV ddxz

ddyz

ddyz

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

UVSO

R

UV

SO

R

UV

SO

R-III

circumstance

53.2 macceleration energy

0.75G

eV

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

UVSO

RARPES

BL7U(SAM

RAI: Symm

etry And Mom

entum Resolved electronic structure

A nalysis Instrument)

AR

PE

S

101

102

103

104

103

102

101

100

10-1

100

101

Energy resolution (meV)

Photon/electron energy (eV)

E/E=104

Mean free path (nm)

E/ E//E

[SK

et al., Rev. S

ci. Instrum. 81, 053104 (2010).]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

Ss

Osaka

University

UVSO

RIM

S

•APPLE-II

u =60mm

:20200eV,

:27200eV

•M

onk-Gillieson-type VLS-PG

M

•End-station: Spin-ARPES–

WAL(

18)

+ 3D-VLEED

spin detector–

Horizontal focusing m

irror ()

(<10 μm)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Outline

•••

•••

ARPES•

ARPES•

1•

••+

••

(E)

(p,k)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

(p)

(E)

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

ARPES

(115eV)

(122eV)

(meV)

(Å-1)

-100

-200

-300

-400

(E)

(p,k)

[H. J. Im

, SK

et al., PR

L(2008).]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Outline

•••

•••

ARPES•

ARPES•

1•

••+

••

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

c-f[,

47, 365 (2012).]

EF

Q0

=2V

c-f hybridization state

Energy

()

E

DC

1/ N*=

N0 m

0 /m*

0

(c-f)

:N* =

N0 m

0 /m*

E0

DC ()

(,)(,)

2V

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

c-f[,

47, 365 (2012).]

EF

Q0

=2V

c-f hybridization state

Energy

()

E

DC

1/ N*=

N0 m

0 /m*

0

(c-f)

:N* =

N0 m

0 /m*

E0

DC ()

(,)(,)

2V[T. Iizuka, S

K et al., JP

SJ 79, 123703 (2010). ]

c-fgap

YbIr2 Si2

4f7/2E

F

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Outline

•••

•••

ARPES•

ARPES•

1•

••+

••Shin-ichiKIM

URA [kim

[email protected]] FBS

and Dept. Physics, O

saka University

UVSO

R, IMS

(E)

(p,k)

(c)

(f)

E

p,k

E

p,k

c-f

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

4f

4f4f

Conduction

band

/

Doniach phase diagram

EuO

[H.M

iyazaki, SK

et al., P

RL 102

(2009).]

4fConduction

band

Magnetic

orderingH

eavy Ferm

ion

Quantum

critical point(Q

CP

)

“Norm

al”m

etal

(YbAl2 ,T

K~ 2000 K

)

[M.M

atsunami, S

Ket al.]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Ce (4f 1) / Yb (4fh 1) 4f

Doniach

phase diagram

Magnetic

orderingH

eavy Ferm

ionC

e

f-band

Conduction

band

/

“c-f”“

”

“Norm

al”m

etal

4f7/2

4f5/2

Doniach

phase diagramp

g

Magnetic

Mrderingo

HHeavy

FFermio

“Norm

al”m

etal

c-fofC

eCoG

e1.2 S

i0.8 (TK ~ 300 K

)

[H.J. Im

, SK

et al., PR

L 100(2008).]

c-bandf-band

EuO

(YbAl2 ,T

K~ 2000 K

)

[M.M

atsunami, S

Ket al.]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Spin fluctuation

(SD

W) vs. K

ondo breakdown.

(SD

W)

[-H

ertz-Millis]

[Si-C

oleman]

[ P. Colem

an et al., JPC

M13,R

723(2001).] /

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

•

DAC

•DAC

10meV

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

Jcf

sO

sakaU

niversityU

VSOR

IMS

Ce

In

CeIn3

Structure: AuCu3 -type

Ce3+: (Xe) 54(4f) 1

TN ~

10 K= 130 m

J/K2

TK

100 K

P

TN

0 with P

2.6 GPa.

THz region

= 2.6 GP

a

P= 0.1 M

PaT

N= 10 K

c-fgap

THz

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

/

10-3

10-2

10-1

100

1012

1013

1014

1015

SPring-8 BL43IR(I=100m

A)

Black body source(for large sam

ple)(1400K, 5m

m, 0.015sr)

BL6B(IR)(I=500m

A)old-BL6A1(I=300m

A)

Photon flux (ph/s/0.1% b.w.)

h (eV)

Black body source(for m

icroscope)(1400K, 1m

m, 0.015sr)

rsityU

VSOR

IMS

Globar lam

p

~103 times

BL6B(IR)[S

K et al., IP

T 2006.]

[SK

et al., NIM

A 2001.]

SR

SP

ring-8

()

……

UV

SO

R

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

~1.0mm

THz m

icroscope @U

VSOR-II

h10 ~ 60 m

eV for THz

50 ~ 103m

eV for IR

Spatial resolution

THz m

icroscope @ U

VS

OR

-II

Diam

ond anvil cellD

AC

+ cryostatPressure + low

temperature

Sample in D

AC

CeIn

3

Au

Ruby

powder

Pressure range<

10G

Pa

Pressure m

ediaK

Br + A

piezon NTem

perature5

gasket

Diam

ond

[ SK

et al., AIP. C

onf. Proc. 1214,71 (2010). ]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

EEF

k

CeIn3

0.2 GP

a 3.4 GP

a

[ T. Iizuka, SK

et al., JPS

J(2012). ]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

CeIn3

Mark size = intensity.

Phase diagram

by NQ

R[S

. Kaw

asaki et.al. PR

B 65

(2001) 020504. ]

01

2

1053 30

Temperature (K)Pressure (G

Pa)

(AFM

)

TN

T*

[ T. Iizuka, SK

et al., JPS

J(2012). ]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

(SDW

)

AFM

[ P. Gegenw

art et.al. Nat. P

hys. 4(2008) 186. ]

AFM

Mark size = intensity.

CeIn3

[ T. Iizuka, SK

et al., JPS

J(2012). ]

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

•

–

•

–

•CeIn

3SD

W•

Shin-ichiKIMU

RA [kimura@



niversityU

VSOR, IM

S

•H

.J. Im, T. Ito, H

.-D. Kim, S. Kim

ura, K.E. Lee, J.B. Hong, Y.S. Kw

on, A. Yasui, H

. Yamagam

i, “Direct O

bservation of Dispersive Kondo

Resonance Peaks in a Heavy-Ferm

ion System,”

Phys. Rev. Lett. 100, 176402 (2008).•

T. Iizuka, T. Mizuno, B. H

. Min, Y. S. Kw

on, S. Kimura, “Existence of

Heavy Ferm

ions in the Antiferromagnetic Phase of CeIn

3 ,” J. Phys. Soc. Jpn. 81, 043703 (2012).

•T. H

ajiri, T. Ito, R. Niw

a, M. M

atsunami, B. H

. Min, Y. S. Kw

on, S. Kimura, “Three-dim

ensional electronic structure and interband nesting in the stoichiom

etric superconductor LiFeAs,” Phys. Rev. B

85, 094509 (2012).•

T. Iizuka, S. Kimura, A. H

erzog, J. Sichelschmidt, C. Krellner, C. G

eibel, F. Steglich, “Temperature-and

Magnetic-Field-D

ependent Optical Properties of H

eavy Quasiparticlesin YbIr2 Si2 ,”

J. Phys. Soc. Jpn.79, 123703 (2010).•

S. Kimura, T. Ito, M

. Sakai, E. Nakam

ura, N. Kondo, T. H

origome, K. H

ayashi, M. H

osaka, M. Katoh, T.

Goto, T. Ejim

a, K. Soda, “SAMRAI: A novel variably polarized angle-resolved photoem

ission beam

line in the VUV region at U

VSOR-II,” Rev. Sci. Instrum

.81, 053104 (2010).

outline fÔ %? fÛphys.kj.yamagata-u.ac.jp/frontier2014/kimura_140130s.pdffbs and dept. physics,...

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