HiSOR
ACTIVITY REPORT2014

Hiroshima Synchrotron Radiation Center, HiSOR
Hiroshima University

Edited by H. Sato
The annual report is available from
Hiroshima Synchrotron Radiation Center, Hiroshima University
Kagamiyama 2-313, Higashi-Hiroshima 739-0046, JAPAN
Phone: +81-82-424-6293
Fax: +81-82-424-6294
e-mail: hisor@hiroshima-u.ac.jp
URL: http://www.hsrc.hiroshima-u.ac.jp/

－i－

－ ii －

Table of Contents
Preface
Current Status of HiSOR
Status of the HiSOR storage ring ······································································································ 1
Beamlines ··································································································································· 6

Reseach Activities– Accelerator Studies –Magnetic design of Knot-APPLE undulator for HiSOR-II and its performance ········································· 9
N. Kawata, A. Miyamoto, S. Sasaki

Magnetic design and performance evaluation of variably polarizing leaf undulator ································· 11
H. Hamabata, S. Sasaki, A. Miyamoto

Design for new type quasi-periodic undulator ················································································ 13
H. Mima, A. Miyamoto, S. Sasaki

Research for introducing a perfect quasi-periodicity for all polarization modes in an APPLE-II undulator ···· 15
T. Mitsuyasu, A. Miyamoto, S. Sasaki

Approaches to detect the photon phase of bending magnet radiation by interference measurements ············ 17
K. Kawabata, A. Miyamoto, S. Sasaki– Instrumental Developments –Status of laser spin-ARPES ······································································································· 19
E. Annese, K. Miyamoto, M. Machida, K. Sumida, K. Taguchi, A. Kimura, T. Okuda

Current status of tunable VUV-laser-based μ-ARPES system at HiSOR ··············································· 21
H. Iwasawa, E. F. Schwier, M. Arita, Y. Aiura, K. Shimada, H. Namatame, M. Taniguchi– Synchrotron Radiation Experiments –Angle resolved photoemission spectroscopy of Kondo lattice YbNi3Ga9 ················································· 23
A. Rousuli, T. Nagasaki, H. Sato, H. Anzai, E. F. Schwier, M. Zheng, Y. Kojima, H. Iwasawa, K. Shimada,K. Mimura, S. Ohara, H. Namatame, M. Taniguchi－ iii －

The electronic structure of monolayer PtSe2 ·················································································· 24
W. Yao, E. Wang, E. F. Schwier, H. Iwasawa, K. Shimada, M. Taniguchi, S. Zhou

Angle-resolved photoemission study of heavy fermion compound EuNi2P2 ············································ 28
H. Anzai, K. Ichiki, A. Hariki, R. Takeshita, H. Iwasawa, E. F. Schwier, K. Shimada, H. Namatame, M. Taniguchi,
A. Mitsuda, H. Wada, K. Mimura

Observation of quantum well states in Pd(100) ultra thin films with ARPES ·········································· 30
S. Sakuragi, E. F. Schwier, H. Iwasawa, M. Zheng, Y. Kojima, S. Nakahara, K. Shimada, H. Namatame,
M. Taniguchi, T. Sato

Final state effect on the intensity distribution in angle-resolved photoelectron spectroscopy for epitaxial
graphene: a study using the variable polarized photon ····································································· 32
S. Tanaka

High-resolution angle-resolved photoemission study of Fe/MgO(100) ··················································· 34
M. Zheng, E. F. Schwier, K. Miyamoto, T. Okuda, K. Shimada, H, Iwasawa, T, Horike, Y, Nagata, Y, Kojima,
H. Namatame, M. Taniguchi

High-resolution ARPES of Ce thin films II ···················································································· 36
Y. Kojima, K. Shimada, Y. Nagata, E. F. Schwier, H. Iwasawa, T. Horike, M. Zheng, Y. Aiura, H. Namatame,
M. Taniguchi

ARPES study on anomalous kinks in σ bands of graphene ································································ 38
S. W. Jung, Y. Sohn, K. S. Kim

Polarization-dependent study of ARPES spectral intensity of Ba(Fe1-xCox)2As2 ······································· 40
H. Takita, N. Kishimoto, Y. Nakashima, W. Mansuer, A. Ino, M. Arita, H. Namatamec, M. Taniguchi, Y. Aiura,
I. Hase, H. Eisak, K. Kihou, C. H. Lee, A. Iyo, M. Nakajima, S. Uchida

Multi-band electronic structure of CeO0.5F0.5BiS2 ············································································ 42
T. Mizokawa, T. Sugimoto, D. Ootsuki, M. Takahashi, N. L. Saini, T. Asano, T. Nakajima, R. Higashinaka,
T. Matsuda, Y. Aoki, E. F. Schwier, M. Zheng, K. Kojima, H. Iwasawa, K. Shimada, H. Namatame, M. Taniguchi

Angle-resolved photoelectron spectroscopy study of Ce(Ru1-xFex)2Al10 ·················································· 44
Y. Yamamoto, H. Yamaoka, E. F. Schwier, F. Tajima,
M. Taniguchi, J. Mizuki

T. Nishioka, H. Iwasawa, K. Shimada, H. Namatame,

XAFS analysis system with He-path at BL-3 and its performance ······················································· 46
S. Yagi, C. Tsukada, S. Ogawa, G. Kutluk, H. Namatame, M. Taniguchi

Synchrotron light analyses for L-cysteine on the PC capped gold nanoparticle ······································· 48
C. Tsukada, T. Tsuji, K. Matsuo, T. Nomoto, T. Murai, G. Kutluk, H. Namatame, M. Taniguchi, T. Yaji, T. Ohta,
S. Ogawa, T. Yoshida, S. Yagi

Resonant photoemission studies of electronic ferroelectric YbFe2O4 ····················································· 50
T. Fukura, T. Wakita, A. Takeda, K. Terashima, K. Fujiwara, N. Ikeda, Y. Muraoka, T. Yokoya

B 1s-2p resonant photoemission studies of heavily boron-doped superconducting diamond ························ 51
A. Takeda, T. Wakita, T. Fukura, H. Okazaki, Y. Takano, S. Kurihara, H. Kawarada, T. Oguchi, Y. Muraoka,
T. Yokoya－ iv －

Doping dependent electronic properties of doped picene film ····························································· 52
T. Hamada, T. Jabuchi, T. Wakita, Y. Muraoka, T. Yokoya

Current activities of research and education on BL5 ······································································· 54
Y. Muraoka, T. Wakita, T. Yokoya

Quantitative estimation of local work function by PEEM ································································· 55
T. Wakita, K. Terashima, Y. Muraoka, T. Yokoya

Photoelectron spectroscopy study of (Na1-xCax)Cr2O4 ······································································ 57
H. Yamaoka, Y. Yamamoto, M. Nakatake, Y. Sakurai,
J. Mizuki

N. Tsujii, K. Shimada, H. Namatame, M. Taniguchi,

Angle-resolved photoemission spectroscopy in topological insulator SnTe thin films ································· 59
R. Akiyama, K. Fujisawa, T. Yamaguchi, R. Sakurai, S. Kuroda, M. Nakatake, A. Kimura

Valence- and conduction-band electronic structures of Pd40Cu20Ge40 metallic glass having a curious structuraland thermodynamic properties ·································································································· 61
S. Hosokawa, T. Yamamoto, H. Kato, M. Nakatake, H. Sato

Electronic structure of mineral tetrahedrite Cu12Sb4S13 and Cu10Zn2Sb4S13 studied by photoemission andinverse-photoemission spectroscopies ·························································································· 63
T. Nagasaki, A. Rousuli, H. Sato, M. Nakatake, G. Kutluk, K. Suekuni, H. Tanaka, T. Takabatake, H. Namatame,
M. Taniguchi

Validity of the circular dichroism in angle-resolved photoemission spectrum of the high temperature
superconductor Bi2212 ············································································································ 65
J. He, S. Gao, T. R. Mion, M. Arita, K. Shimada, G. D. Gu, R.-H. He

Band structure of Pr2Ir2O7 studied by ARPES ··············································································· 67
T. Kondo, M. Nakayama, W. Malaeb, J. J. Ishikawa, S. Nakatsuji, S. Shin

A novel one-dimensional electronic state at IrTe2 surface ·································································· 69
T. Mizokawa, D. Ootsuki, T. Sugimoto, M. Takahashi, N. L. Saini, M. Horio, A. Fujimori, S. Pyon, K. Kudo,
M. Nohara, M. Arita, H. Anzai, H. Namatame, M. Taniguchi

Temperature dependence of fermi surface in mixed-valent EuPtP ······················································· 71
H. Anzai, K. Ichiki, M. Arita, H. Namatame, M. Taniguchi, M. Mitsuda, M. Umeda, H. Wada, H. Ikeda, K. Mimura

Polarization and photon-energy dependent ARPES study on K-doped iron-selenide superconductor ············ 73
M. Sunagawa, K. Terashima, T. Hamada, H. Fujiwara, M. Tanaka, H. Takeya, Y. Takano, M. Arita, K. Shimada,H. Namatame, M. Taniguchi, K. Suzuki, H. Usui, K. Kuroki, T. Wakita, Y. Muraoka, T. Yokoya

Diffraction of the photoelectron induced by the surface defects/impurities on the graphite surface ·············· 75
S. Tanaka

Linear-polarization-dependent ARPES measurement of YbB6 ··························································· 76
M. Arita, H. Sato, K. Shimada, H. Namatame, M. Taniguchi, F. Iga

Angle-resolved photoemission spectroscopy of Bi2.1Sr1.9Ca(Cu1-xNix)O8+δ ················································ 77
W. Mansuer, N. Kishimoto, H. Takita, T. Kubo, M. Arita, H. Namatame, M. Taniguchi, Y. Kiguchi, T. Sakaidani,
A. Matsuda, A. Ino－v－

Orbital-selective spin characterization of Dirac-cone surface state at W(110) ········································· 79
K. Miyamoto, H. Wortelen, H. Mirhosseini, J. Henk, T. Okuda, M. Donath

Investigation of surface alloy spin texture transfer to organic molecular layer ········································ 80
J. Lobo-Checa, P. Borghetti, K. Sumida, T. Warashina, T. Okuda, J. E. Ortega

Spin-resolved ARPES of anomalous semimetal WTe2 ······································································· 82
J. Fujii, P. Das, I. Vobornik, G. Panaccione, G. Rossi, M. Kahk

Spin and angle resolved photoemission studies on chiral materials ······················································ 84
M. Nurmamat, T. Okuda, T. Koyama, K. Inoue, H. Namatame, M. Taniguchi, A. Kimura

Spin-orbital texture of Bi based surface alloys and Sb2Te3 probed by polarization- and photon energy-dependent
SARPES ······························································································································ 86
S. Christoph, M. Henriette, B. Hendrik, R. Friedrich

Spin- and k-dependent electronic structure of Au nanowire on Ni(110) ················································· 87
T. Warashina, M. Nurmamat, K. Miyamoto, A. Kimura, M. Taniguchi, H. Namatame, T. Okuda

Study of surface spin structure of Bi(110) fabricated on Si(557) surface ················································ 89
T. Okuda, T. Shishidou, M. Nurmamat, E. Schwier, H. Namatame, M. Taniguchi

Changes in electronic states of Pd1-xMx (M=Ru,Rh,Ag) alloys after hydrogenation studied by x-ray absorption
spectroscopy ························································································································· 91
K. Fujii, N. Ishimatsu, S. Hayakawa, H. Maruyama

Selective synthesis of CuS and Cu2S thin films and S K-edge XAFS characterization ······························· 93
T. Takiguchi, T. Tahara, N. Noguchi, G. Kutluk, H. Namatame, S. Hayakawa

Development of a coal fly ash and cement mixture for optimum removal of hydrogen sulfide from water ······ 95
S. Asaoka, H. Okamura, S. Hayakawa

Formation of sulfur compounds on the Granulated Coal Ash covering on organic enriched sediment ··········· 97
K. Kim, T. Yamamoto, S. Hayakawa

XAFS characterization of copper sulfide thin films ········································································· 99
S. Hayakawa, Y. Hayasaka, T. Tahara, T. Takiguchi, G. Kutluk, H. Namatame

Investigation of electro-deposition of silver by in-situ XRF measurement ············································· 100
N. Noguchi, G. Kutluk, H. Namatame, S. Hayakawa

Characterization of intermolecular structure of 2-microglobulin core fragments in amyloid fibrils byvacuum-ultravioletcircular dichroism spectroscopy and circular dichroism theory ································· 102
K. Matsuo, H. Hiramatsu, K. Gekko, H. Namatame, M. Taniguchi, R. W. Woody

Conformation

analysisofmembrane-boundproteinsbyvacuum-ultraviolet

circular-dichroism andlinear-dichroism spectroscopy ·································································································· 103
K. Matsuo, H. Namatame, M. Taniguchi, K. Gekko

VUV-CD measurements of modified histone proteins ····································································· 104
Y. Izumi, K. Fujii, K. Matsuo, A. Yokoya－ vi －

Effect of molecular weight on synergy in mixed gels of κ-carrageenan and locust bean gum studied by vacuum
ultraviolet circular dichroism ··································································································· 106
Y. Maki, K. Toriba, K. Ishizaka, H. Yoshida, S. Yasuraoka, K. Matsuo

Determination of absolute configuration for a natural product niphateolide A by vacuum-ultraviolet circulardichroism ··························································································································· 108
T. Nehira, K. Matsuo

Study of ion desorption dynamics of methyl-ester terminated SAMs induced by resonant core-excitations ···· 109
S. Hosoda, S. Wada, R. Koga, J. Kajikawa, H. Hayashita, A. Hiraya

Study of self-assembled monolayer of phosphorescent molecule ························································ 111
S. Yamahira, K. Yamamoto, K. Miyatake, S. Wada, T. Sekitani, A. Hiraya

Evaluation of ultrathin multilayer films produced by layer-by-layer method using conventional spraying ···· 113
M. Matsue, S. Wada, T. Umemoto, A. Hiraya

X-ray absorption spectroscopy study of (Na1-xCax)Cr2O4 ································································· 115
H. Yamaoka, Y. Yamamoto, M. Sawada, Y. Sakurai,

N. Tsujii, K. Shimada, H. Namatame, M. Taniguchi, J. Mizuki

Magnetic properties and surface structure of graphene/Fe/Ni(111) ····················································· 117
W. Tadano, S. Matsuoka, M. Sawada, H. Namatame, M. Taniguchi

Magnetic coupling between Mn-doped titania nanosheets and Fe overlayers ········································· 119
N. Saitou, Y. Hirano, M. Sawada, H. Namatame, M. Taniguchi, T. Taniguchi, Y. Matsumoto, M. Hara

Inverse photoemission spectroscopy of Ca2-xSrxRuO4 ······································································ 121
Y. Utsumi, S. Agrestini, L. H. Tjeng, H. Nagata, H. Sato

ARPES and inverse ARPES study of strongly-correlated electron system SrVO3 ··································· 123
S. Yamamoto, D. Shimonaka, T. Yoshida, A. Fujimori, H. Sato, H. Namatame, M. Taniguchi, H. Kumigashira,K. Ono, S. Miyasaka, S. Tajima, S. Biermann

Appendices
Organization ···························································································································· 125
List of Publications ····················································································································· 130
List of Resarch Proposals ············································································································· 135
Symposium ······························································································································ 141
Plan of the Building ···················································································································· 142
Location ·································································································································· 143－ vii －

Current Status of HiSOR

Status of the HiSOR storage ring
1. Introduction
The HiSOR is a synchrotron radiation (SR) source of Hiroshima Synchrotron Radiation
Center, Hiroshima University, established in 1996. It is a compact racetrack-type storage ring
having 21.95 m circumference, and its natural emittance of 400 nmrad is rather large
compared with those of the other medium to large storage rings. The most outstanding
advantage of the facility lies in good combination with state-of-the-art beamlines (BL’s) for
high-resolution photoelectron spectroscopy in the photon energy ranges between VUV andsoft X-ray. The principal parameters of HiSOR are shown in Table 1.
Table 1: Main parameters of the HiSOR Storage ring.
Circumference

21.95 mType

Racetrack

Bending radius

0.87 mBeam energy at Injection

150 MeVat Storage

700 MeV

Magnetic field at Injection

0.6 T

at Storage

2.7 T

Injector

150 MeV Racetrack Microtron

Betatron tune (x, y)RF frequency(1.72, 1.84)
191.244 MHz

Harmonic number

14

RF voltage

200 kVStored current (nominal)

350 mA

Natural emittanceBeam life time400 nmrad~10 hours@200 mA

Critical wavelength

1.42 nmPhoton intensity (5 keV)

1.2×1011 /sec/mr2/0.1%b.w./300mA

The originally designed maximum stored current of HiSOR was 300 mA. However, after
the improvement of the control system and the RF system in 2003, HiSOR has been in
operation with 350 mA maximum stored current since. Fig. 1 shows an example of typical
one-day operation. Beam injection for HiSOR is executed twice a day, at around 9:00 and
14:30.

－1－

400

600
500
400

200

300
200

100

Beam life time [min]Ring current [mA]

300

100
0
09:00

0
12:00

15:00

18:00

Time

Fig. 1: Typical daily operation status.
HiSOR has two 180-deg. Normal-conducting bending magnets which generate a strong
magnetic field of 2.7 T. This storage ring is equipped with two insertion devices, a linear
undulator and a quasi-periodic APPLE-II undulator which replaced to the previous helicalundulator in summer 2012. Major parameters of these undulators are listed in Table 2. The
photon energy spectra of the SR from HiSOR are shown in Fig. 2.
Table 2: Main parameters of the undulators.
Linear undulator (BL-1)
Total length

2354.2 mm
57 mm

Periodic length u
Periodic number

41

Pole gap

30-200 mm

Maximum magnetic field

0.41 T

Magnetic material

Nd-Fe-B (NEOMAX-44H)

Quasi-Periodic APPLE-II
undulator (BL-9A,B)
Total length
1845 mm
78 mm

Periodic length u
Periodic number

23

Pole gap

23-200 mm

Maximum magnetic field

0.86 T (horizontal linear mode)
0.59 T (vertical linear mode)
0.50 T (helical mode)

Magnetic material

Nd-Fe-B (NEOMAX-46H)－2－

Wave length [nm]
100

10

16

10

BL-9 QP-APPLE2(helical mode)

15

1st

1

BL-1 Linear undulator
3rd

5th

10

Ring current = 300 mA

7th peak2

2

Brilliance [Photons/sec/mrad /mm /0.1 % b.w.]

1000

BL-9 QP-APPLE2(linear mode)

14

10

Bending magnet

13

10

12

10

BL5

11

10

BL12
1

BL9A

BL1
BL7

BL15

BL3
BL6
BL14

10

100

BL13

BL11

1000

10000

Photon energy [eV]Fig. 2: Photon energy spectra of the SR from HiSOR.

2. Operation status in FY 2014
Fig. 3 shows monthly operation time of HiSOR storage ring in FY 2014. HiSOR has a longterm cease period to have routine inspections in summer every year. The total user time of
FY2014 achieved 1221 hours. Fig. 4 shows bar graph of total operation days in each fiscal
year. It shows that days for user operation as well as the total operation days in FY2014 wasdecreased similar to that in FY2012 in comparison with an average year. Operation times ofthe storage ring and the Microtron from FY 2005 to FY 2014 are shown in Fig. 5.
In regard to the total operation time of except FY2012 and FY2014, it has been kept inalmost constant hours, around or over 1800 hours, and user time was over 1500 hours in each
Fiscal Year consecutively for five years from 2007 since the accelerator system has been wellmaintained. However, it has been only 1119 and 1221 hours in FY2012 and FY2014,
respectively due to four (three in FY2012, one in FY2014) vacuum leak incidents to thestorage ring chamber. After incidents in FY2012, the water-cooled SR absorbers in bending
magnet sections was replaced to new ones during the summer shutdown period in 2013. As
the result, the operation time and user time in FY2013 recovered to the almost same level as
the average though the beam life time has shortened and radiation dose increased due toworse vacuum, and hence. The user run was conducted at the maximum current about 250
mA after January, 2013. The vacuum failure due to a water leak from a replaced new absorberhappened again one week after starting the fall user run in October 2014. And, hence, the user－3－

run ceased till the end of December and resumed in January, 2015.

Fig. 3: Monthly operation time in FY 2014.

Fig. 4: Operation days of HiSOR storage ring.

－4－

Fig. 5: Annual operation time of Storage ring and Microtron.

－5－

Beamlines
A total of 13 beamlines has been constructed so far; three normal-incidence
monochromators,

sevengrazing-incidence

monochromators,

twodoublecrystalmonochromators and apparatus for white beam irradiation (Fig. 1). Table 1 lists the beamlinesat present together with the main subject, energy range and monochromators.
Table 1: List of Beamlines
beamline source

monochromator

subject

energy range(eV)

status

BL-1

LU

GIM

Polarization dependent
high-resolution ARPES

22-300in use

BL-3

BM

DCM

Surface XAFS

1800-3200

in use

BL-4

BM

BL-5

BM

GIM

ARPES and PEEM

40-220in use

BL-6

BM

GIM

Gas-phase photochemistry200-1200in use

BL-7

BM

GIM

ARPES

20-380in use

BL-8

BM

BL-9A

HU/LU

NIM

BL-9B

HU/LU

BL-11

closedWhite beam irradiation

Beam diagnosis
5-35

in useGIM

UV-VUV high-resolution
ARPES
High-resolution
spin-resolved ARPES

16-300in use

BM

DCM

XAFS

2000-5000

in use

BL-12

BM

NIM

VUV-CD of biomaterials

2-10

in use

BL-13

BM

GIM

Surface photochemistry60-1200

in use

BL-14

BM

GIM

Soft-XMCD of nano-materials

400-1200in use

BL-15

BM

NIM

VUV-CD of biomaterials

4-40

closedBL-16

BMBeam profile monitor

At present, nine beamlines BL1, BL3, BL6, B7, BL9A, BL9B, BL11, BL12, BL13 andBL14 are opened for users. Furthermore, three off-line systems, spin- and angle-resolved
photoemission (SARPES) spectrometer, inverse-photoemission (IPES) spectrometer andlow-temperature scanning tunneling microscope (LT-STM) system have also opened for users(Fig. 2).
－6－

Fig. 1: Schematic view of the experimental hall.

－7－

Fig. 2： Experimental apparatus for Joint usage and Joint research. (a) BL-1, (b) BL-3, (c)BL-6, (d) BL-7, (e) BL-9A, (f) BL-9B, (g) BL-11, (h) BL-12, (i) BL-13, (j) BL-14, (k) Spin
resolved photoemission (offline), (l) Resonant inverse photoemission (offline), (m) LT-STM(offline).

－8－Research Activities– Accelerator Studies –－9－

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－ 11 －

－ 12 －

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Research Activities– Instrumental Developments –－ 19 －－ 20 －

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